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Yoshito Kishi (1937-2023)
Yoshito Kishi (1937-2023)
Professor. Yoshito Kishi,
a member of the Honorary Editorial Associates of HETEROCYCLES,
has passed away on January 9, 2023 at the age of 85.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
January 13, 2023
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Paper | Regular issue | Vol 27, No. 2, 1988, pp.457-473
Published online, 1st January, 1970■ Syntheses of α,β-Unsaturated Ketones Starting from Vinylic and Allylic Grignard Reagents via 2-Imidazolylmethanol Intermediates
Published online, 1st January, 1970
DOI: 10.3987/COM-87-4393
■ Syntheses of α,β-Unsaturated Ketones Starting from Vinylic and Allylic Grignard Reagents via 2-Imidazolylmethanol Intermediates
Satoshi Hayakawa, Tohru Michiue, Masao Okamoto,* Shoko Hatakeyama, and Shunsaku Ohta
*Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8412, Japan
Abstract
Various α , β -unsaturated ketones (9,12 and 16) were prepared from 2-alkanol-1-methyl-1H-imidazoles (6,10 and 13 respectively), which were obtained by treatment of 2-acyl-lmethyl-lH-imidazoles (1) with vinylic Grignard reagents, a lithium acetylide and allylic Grignard reagents, respectively. dl-(ar)-Turmerone (16i) was also synthesized as an application of the present methodology.
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