start-ver=1.4 cd-journal=joma no-vol=53 cd-vols= no-issue=17 article-no= start-page=3045 end-page=3050 dt-received= dt-revised= dt-accepted= dt-pub-year=2021 dt-pub=2021416 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Nickel-Catalyzed Decarbonylative Thioetherification of Acyl Fluorides via C–F Bond Activation en-subtitle= kn-subtitle= en-abstract= kn-abstract=Nickel-catalyzed decarbonylative thioetherification of acyl fluorides has been developed. This transformation allows an array of acyl fluorides to react with thiophenols. A wide range of functional groups are well tolerated and the corresponding sulfides can be obtained in good to excellent yields. This protocol provides the formation of diverse carbon–sulfur bonds via a highly efficient decarbonylative process. en-copyright= kn-copyright= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=YouJingwen en-aut-sei=You en-aut-mei=Jingwen kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=ChenQiang en-aut-sei=Chen en-aut-mei=Qiang kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= en-keyword=C-F bond activation kn-keyword=C-F bond activation en-keyword=decarbonylation kn-keyword=decarbonylation en-keyword=thioetherification kn-keyword=thioetherification en-keyword=acyl fluorides kn-keyword=acyl fluorides en-keyword=sulfides kn-keyword=sulfides END start-ver=1.4 cd-journal=joma no-vol=57 cd-vols= no-issue=30 article-no= start-page=3696 end-page=3699 dt-received= dt-revised= dt-accepted= dt-pub-year=2021 dt-pub=20210418 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Palladium-catalyzed decarbonylative and decarboxylative cross-coupling of acyl chlorides with potassium perfluorobenzoates affording unsymmetrical biaryls en-subtitle= kn-subtitle= en-abstract= kn-abstract=This paper describes the synthesis of unsymmetrical biaryls by the palladium-catalyzed cross-coupling reaction of acyl chlorides with potassium perfluorobenzoates. This transformation is unique in that it involves simultaneous decarbonylation and decarboxylation under redox-neutral conditions. Compared to conventional cross-coupling protocols for the synthesis of unsymmetrical biaryls, the two reactants in this synthetic strategy can be readily prepared from abundant and inexpensive aromatic carboxylic acids. en-copyright= kn-copyright= en-aut-name=FuLiyan en-aut-sei=Fu en-aut-mei=Liyan kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=YouJingwen en-aut-sei=You en-aut-mei=Jingwen kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= END start-ver=1.4 cd-journal=joma no-vol= cd-vols= no-issue= article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=20201028 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Nickel-Catalyzed Decarbonylative Alkynylation of Acyl Fluorides with Terminal Alkynes under Copper-Free Conditions en-subtitle= kn-subtitle= en-abstract= kn-abstract=Nickel-catalyzed decarbonylative alkynylation of acyl fluorides with terminal silylethynes under copper-free conditions is described. This newly developed method has a wide substrate scope, affording internal silylethynes in moderate to high yields. The formation of 1,3-diynes as homocoupled products and conjugate enones as carbonyl-retentive products were effectively suppressed. en-copyright= kn-copyright= en-aut-name=ChenQiang en-aut-sei=Chen en-aut-mei=Qiang kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=FuLiyan en-aut-sei=Fu en-aut-mei=Liyan kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=YouJingwen en-aut-sei=You en-aut-mei=Jingwen kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=4 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= en-keyword=nickel catalysis kn-keyword=nickel catalysis en-keyword=decarbonylation kn-keyword=decarbonylation en-keyword=silylalkynes kn-keyword=silylalkynes en-keyword=alkynylation kn-keyword=alkynylation en-keyword=acyl fluorides kn-keyword=acyl fluorides en-keyword=sila-Sonogashira–Hagihara reaction kn-keyword=sila-Sonogashira–Hagihara reaction END start-ver=1.4 cd-journal=joma no-vol=25 cd-vols= no-issue=17 article-no= start-page=3842 end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=20200824 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis and Physicochemical Properties of 2,7-Disubstituted Phenanthro[2,1-b:7,8-b']dithiophenes en-subtitle= kn-subtitle= en-abstract= kn-abstract=We report the design, synthesis, and physicochemical properties of an array of phenanthro[2,1-b:7,8-b']dithiophene (PDT-2) derivatives by introducing five types of alkyl (CnH2n+1; n = 8, 10, 12, 13, and 14) or two types of decylthienyl groups at 2,7-positions of the PDT-2 core. Systematic investigation revealed that the alkyl length and the type of side chains have a great effect on the physicochemical properties. For alkylated PDT-2, the solubility was gradually decreased as the chain length was increased. For instance, C-8-PDT-2 exhibited the highest solubility (5.0 g/L) in chloroform. Additionally, substitution with 5-decylthienyl groups showed poor solubility in both chloroform and toluene, whereas PDT-2 with 4-decylthienyl groups resulted in higher solubility. Furthermore, UV-vis absorption of PDT-2 derivatives substituted by decylthienyl groups showed a redshift, indicating the extension of their pi-conjugation length. This work reveals that modification of the conjugated core by alkyl or decylthienyl side chains may be an efficient strategy by which to change the physicochemical properties, which might lead to the development of high-performance organic semiconductors. en-copyright= kn-copyright= en-aut-name=JiZhenfei en-aut-sei=Ji en-aut-mei=Zhenfei kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=ChengZeliang en-aut-sei=Cheng en-aut-mei=Zeliang kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=MoriHiroki en-aut-sei=Mori en-aut-mei=Hiroki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= affil-num=4 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= en-keyword=phenacene-type compounds kn-keyword=phenacene-type compounds en-keyword=thiophene ring kn-keyword=thiophene ring en-keyword=cross-coupling kn-keyword=cross-coupling en-keyword=alkyl side chains kn-keyword=alkyl side chains en-keyword=UV-vis absorption kn-keyword=UV-vis absorption en-keyword=p-type organic semiconductors kn-keyword=p-type organic semiconductors en-keyword=organic field-effect transistor (OFET) kn-keyword=organic field-effect transistor (OFET) END start-ver=1.4 cd-journal=joma no-vol=21 cd-vols= no-issue=7 article-no= start-page=2447 end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=20200401 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of Dinaphtho[2,3-d:2',3'-d']anthra[1,2-b:5,6-b']dithiophene (DNADT) Derivatives: Effect of Alkyl Chains on Transistor Properties en-subtitle= kn-subtitle= en-abstract= kn-abstract=To investigate organic field-effect transistor (OFET) properties, a new thienoacene-type molecule, 4,14-dihexyldinaphtho[2,3-d:2',3'-d']anthra[1,2-b:5,6-b']dithiophene (C6-DNADT), consisting of pi-conjugated nine aromatic rings and two hexyl chains along the longitudinal molecular axis has been successfully synthesized by sequential reactions, including Negishi coupling, epoxidation, and cycloaromatization. The fabricated OFET using thin films of C6-DNADT exhibited p-channel FET properties with field-effect mobilities (mu) of up to 2.6 x 10(-2) cm(2) V-1 s(-1), which is ca. three times lower than that of the parent DNADT molecule (8.5 x 10(-2) cm(2) V-1 s(-1)). Although this result implies that the installation of relatively short alkyl chains into the DNADT core is not suitable for transistor application, the origins for the FET performance obtained in this work is fully discussed, based on theoretical calculations and solid-state structure of C6-DNADT by grazing incidence wide-angle X-ray scattering (GIWAXS) and atomic force microscopy (AFM) analyses. The results obtained in this study disclose the effect of alkyl chains introduced onto the molecule on transistor characteristics. en-copyright= kn-copyright= en-aut-name=IshidaTakumi en-aut-sei=Ishida en-aut-mei=Takumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SawanakaYuta en-aut-sei=Sawanaka en-aut-mei=Yuta kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=ToyamaRyota en-aut-sei=Toyama en-aut-mei=Ryota kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=JiZhenfei en-aut-sei=Ji en-aut-mei=Zhenfei kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=MoriHiroki en-aut-sei=Mori en-aut-mei=Hiroki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= affil-num=1 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=4 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=5 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= affil-num=6 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= en-keyword=organic field-effect transistor (OFET) kn-keyword=organic field-effect transistor (OFET) en-keyword=thienoacene kn-keyword=thienoacene en-keyword=p-type semiconductor kn-keyword=p-type semiconductor en-keyword=Negishi coupling reaction kn-keyword=Negishi coupling reaction en-keyword=cycloaromatization kn-keyword=cycloaromatization en-keyword=fastener effect kn-keyword=fastener effect END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=6 article-no= start-page=2350 end-page=2353 dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=20200505 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Palladium-Catalyzed Decarbonylative Alkylation of Acyl Fluorides en-subtitle= kn-subtitle= en-abstract= kn-abstract=Palladium-catalyzed decarbonylative alkylation reactions of acyl fluorides have been developed using alkylboranes having β-hydrogens. A wide range of functional groups were well tolerated, even at the high temperature required for decarbonylation. This protocol provides a diverse C(sp2)–C(sp3) bond formation via a highly efficient decarbonylative process. The hemilabile bidentate ligand DPPE plays a crucial role for retardation of the undesired β-hydride elimination. en-copyright= kn-copyright= en-aut-name=FuLiyan en-aut-sei=Fu en-aut-mei=Liyan kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=ChenQiang en-aut-sei=Chen en-aut-mei=Qiang kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=WangZhenhua en-aut-sei=Wang en-aut-mei=Zhenhua kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=4 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= END start-ver=1.4 cd-journal=joma no-vol=84 cd-vols= no-issue=23 article-no= start-page=15373 end-page=15379 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=20191104 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Copper-Catalyzed Regioselective Aminothiolation of Aromatic and Aliphatic Alkenes with N-Fluorobenzenesulfonimide and Thiols through Three-Component Radical Coupling en-subtitle= kn-subtitle= en-abstract= kn-abstract= Copper-catalyzed regioselective aminothiolation of terminal and internal alkenes with N-fluorobenzenesulfonimide and thiols has been developed. The three-component reaction is promoted by the addition of dimethyl sulfide. In addition to aromatic alkenes, aliphatic alkenes are subjected to the reaction, affording various aminothiolation adducts as single regioisomers. The radical process is proposed by preliminary mechanistic studies, involving radical trap and radical clock experiments. en-copyright= kn-copyright= en-aut-name=IwasakiMasayuki en-aut-sei=Iwasaki en-aut-mei=Masayuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=NonakaKosei en-aut-sei=Nonaka en-aut-mei=Kosei kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=ZouSong en-aut-sei=Zou en-aut-mei=Song kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=SawanakaYuta en-aut-sei=Sawanaka en-aut-mei=Yuta kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=ShinozakiTakaaki en-aut-sei=Shinozaki en-aut-mei=Takaaki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=FujiiTomoya en-aut-sei=Fujii en-aut-mei=Tomoya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=NakajimaKiyohiko en-aut-sei=Nakajima en-aut-mei=Kiyohiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= affil-num=1 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil= kn-affil= affil-num=4 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=5 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=6 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=7 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=8 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= END start-ver=1.4 cd-journal=joma no-vol=48 cd-vols= no-issue=3 article-no= start-page=281 end-page=283 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=20190110 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title= Copper-catalyzed Regioselective Chloroamination of Alkenes with Chlorotrimethylsilane and N-Fluorobenzenesulfonimide under Microwave-assisted Conditions en-subtitle= kn-subtitle= en-abstract= kn-abstract= A copper-catalyzed chloroamination of alkenes with chlorotrimethylsilane and N-fluorobenzenesulfonimide has been developed. The reactions were complete within 1 h at 120 degrees C by means of microwave heating. The present chloroamination proceeds with a perfect regioselectivity and is compatible with various functional groups. The preliminary mechanistic investigation revealed that the reaction involves a radical process. The utility of the present method was demonstrated by scalable, operationally simple and safe system. en-copyright= kn-copyright= en-aut-name=IwasakiMasayuki en-aut-sei=Iwasaki en-aut-mei=Masayuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=XuJie en-aut-sei=Xu en-aut-mei=Jie kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=TaniYukari en-aut-sei=Tani en-aut-mei=Yukari kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=FuLiyan en-aut-sei=Fu en-aut-mei=Liyan kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=IkemotoYuichi en-aut-sei=Ikemoto en-aut-mei=Yuichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=UraYasuyuki en-aut-sei=Ura en-aut-mei=Yasuyuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= affil-num=1 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=4 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=5 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=6 en-affil=Department of Chemistry, Biology, and Environmental Science, Faculty of Science, Nara Women’s University kn-affil= affil-num=7 en-affil=Research Institute for Interdisciplinary Science, Okayama University kn-affil= en-keyword=Chloroamination kn-keyword=Chloroamination en-keyword=Copper catalyst kn-keyword=Copper catalyst en-keyword=Alkenes kn-keyword=Alkenes END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=7 article-no= start-page=1642 end-page=1645 dt-received= dt-revised= dt-accepted= dt-pub-year=2016 dt-pub=20160321 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Palladium-Catalyzed Regio- and Stereoselective Carbothiolation of Terminal Alkynes with Azolyl Sulfides en-subtitle= kn-subtitle= en-abstract= kn-abstract= Palladium-catalyzed carbothiolation of terminal alkynes with azolyl sulfides affords various 2-(azolyl)alkenyl sulfides with perfect regio- and stereoselectivities. The present addition reaction proceeded through a direct cleavage of carbon-sulfur bonds in azolyl sulfides. The resulting adducts that are useful intermediates in organic synthesis are further transformed to multisubstituted olefins containing azolyl moieties. en-copyright= kn-copyright= en-aut-name=IwasakiMasayuki en-aut-sei=Iwasaki en-aut-mei=Masayuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TopolovčanNikola en-aut-sei=Topolovčan en-aut-mei=Nikola kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=HuHao en-aut-sei=Hu en-aut-mei=Hao kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=NishimuraYugo en-aut-sei=Nishimura en-aut-mei=Yugo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=GagnotGlwadys en-aut-sei=Gagnot en-aut-mei=Glwadys kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=nakornRungsaeng Na en-aut-sei=nakorn en-aut-mei=Rungsaeng Na kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=YuvacharaskulRamida en-aut-sei=Yuvacharaskul en-aut-mei=Ramida kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=NakajimaKiyohiko en-aut-sei=Nakajima en-aut-mei=Kiyohiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= affil-num=1 en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=2 en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=4 en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=5 en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=6 en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=7 en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=8 en-affil=Department of Chemistry, Aichi University of Education kn-affil= affil-num=9 en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University kn-affil= END start-ver=1.4 cd-journal=joma no-vol=19 cd-vols= no-issue=5 article-no= start-page=1092 end-page=1095 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=20170217 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of Benzoisoselenazolone Derivatives by Nickel-Catalyzed Dehydrogenative Direct Selenation of C(sp2)-H Bonds with Elemental Selenium in Air en-subtitle= kn-subtitle= en-abstract= kn-abstract= Nickel-catalyzed direct selenation of benzamides bearing an 8-quinolyl auxiliary with elemental selenium provides benzoisoselenazolones in good yield via carbon-selenium and nitrogen-selenium bond formation under aerobic conditions. In addition to aryl C-H bonds, the method can also be applied to alkenyl C-H bonds, constructing an isoselenazolone skeleton. Simple mechanistic analysis shows that the reaction proceeds through a rate-determining C-H bond cleavage. The obtained benzoisoselenazolones are transformed into various organoselenium compounds and utilized as the catalyst for bromolactonization of alkenoic acids. en-copyright= kn-copyright= en-aut-name=IwasakiMasayuki en-aut-sei=Iwasaki en-aut-mei=Masayuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=MikiNatsumi en-aut-sei=Miki en-aut-mei=Natsumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=TsuchiyaYuta en-aut-sei=Tsuchiya en-aut-mei=Yuta kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=NakajimaKiyohiko en-aut-sei=Nakajima en-aut-mei=Kiyohiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= affil-num=1 en-affil= Research Institute for Interdisciplinary Science, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=4 en-affil=Department of Chemistry, Aichi University of Education kn-affil= affil-num=5 en-affil= Research Institute for Interdisciplinary Science, Okayama University kn-affil= END start-ver=1.4 cd-journal=joma no-vol=102 cd-vols= no-issue=3-4 article-no= start-page=620 end-page=626 dt-received= dt-revised= dt-accepted= dt-pub-year=2011 dt-pub=20110222 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Improvement in sulfur desorption of NOX storage and reduction catalysts using a Ba–Ti composite oxide en-subtitle= kn-subtitle= en-abstract= kn-abstract=A Ba-Ti composite oxide was formed on a NOx storage and reduction catalyst via impregnation of a Ba-Ti precursor solution composed of H(2)O(2) added to a complex prepared using the citric acid method. The structure of the Ba-Ti composite in solution was analyzed by chemical composition analysis and FT-Raman and UV-vis spectroscopy. MM2 calculations were performed to propose its chemical structure. Both Ba and Ti together were found to form a composite molecule in the solution. Furthermore, TEM-EDX and XRD analyses of the Ba-Ti composite oxide on the catalyst prepared by impregnation with the Ba-Ti composite aqueous solution revealed that Ba and Ti in the catalyst were highly dispersed at the nm scale. The formation of the Ba-Ti composite oxide on the NSR catalyst enhanced sulfur desorption efficiency and led to high-performance NO(X) conversion as a NO(X) storage and reduction activity catalyst after desulfation treatment. It was assumed that the existence of nano-scaled Ba compounds combined with Ti was efficient for the inhibition of the sintering of barium sulfate and its facile decomposition. It was found that dispersion of Ba compounds for NO(X) storage materials using a Ba-Ti complex solution is an efficient way to improve the durability of NSR catalysts. en-copyright= kn-copyright= en-aut-name=TanakaToshiyuki en-aut-sei=Tanaka en-aut-mei=Toshiyuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TajimaIchirou en-aut-sei=Tajima en-aut-mei=Ichirou kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=KatoYuichi en-aut-sei=Kato en-aut-mei=Yuichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=ShinjohHirofumi en-aut-sei=Shinjoh en-aut-mei=Hirofumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=Toyota Central Research and Development Labs., Inc. affil-num=2 en-affil= kn-affil=Toyota Central Research and Development Labs., Inc. affil-num=3 en-affil= kn-affil=Toyota Central Research and Development Labs., Inc. affil-num=4 en-affil= kn-affil=Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University affil-num=5 en-affil= kn-affil=Toyota Central Research and Development Labs., Inc. END start-ver=1.4 cd-journal=joma no-vol=51 cd-vols= no-issue=2 article-no= start-page=306 end-page=308 dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100113 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Palladium- and base-free synthesis of conjugated ynones by cross-coupling reactions of alkynylboronates with acid chlorides mediated by CuCl en-subtitle= kn-subtitle= en-abstract= kn-abstract=Alkynylboronates can be employed as a practical and versatile precursor for a variety of pi-conjugated organic compounds. In the presence of Cu(I) salt, cross-coupling reactions of acid chlorides with alkynylboronates giving rise to the corresponding conjugated ynones takes place readily in aprotic polar solvents such as DMI under neutral conditions. en-copyright= kn-copyright= en-aut-name=NishiharaYasushi en-aut-sei=Nishihara en-aut-mei=Yasushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SaitoDaisuke en-aut-sei=Saito en-aut-mei=Daisuke kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=InoueEiji en-aut-sei=Inoue en-aut-mei=Eiji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=OkadaYoshiaki en-aut-sei=Okada en-aut-mei=Yoshiaki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=MiyazakiMikihiro en-aut-sei=Miyazaki en-aut-mei=Mikihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=InoueYoshiaki en-aut-sei=Inoue en-aut-mei=Yoshiaki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=TakagiKentaro en-aut-sei=Takagi en-aut-mei=Kentaro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University affil-num=2 en-affil= kn-affil=Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University affil-num=3 en-affil= kn-affil=Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University affil-num=4 en-affil= kn-affil=Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University affil-num=5 en-affil= kn-affil=Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University affil-num=6 en-affil= kn-affil=Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University affil-num=7 en-affil= kn-affil=Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University END