Memoirs of the Faculty of Engineering, Okayama University 10巻 2号
1976-01-27 発行
Torii, Sigeru
Department of Industrial Chemistry
Tanaka, Hideo
Department of Industrial Chemistry
Ethyl dl-jasmonate (1a) and ethyl dl-2-epi-jasmonate (1b),
novel constitutents in jasmin absolute from Italian Jasminum
grandiflorum L, were prepared from 8-endo-(2'-cis-pentenyl)-3-oxo-2-oxa-bicyclo [3.2.1] octane, jasmine acid δ-lactone(2). Improvement of the preparation of the intermediate (9), a key precursor of (2), was made by different route via lactonization of (7) and/or (8). NMR and IR spectra (la) and (1b) are given.