HETEROCYCLES
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Obituary
Zenichi Yoshida (1925-2023)
Zenichi Yoshida (1925-2023)
Professor. Zenichi Yoshida,
a member of the Honorary Advisors of HETEROCYCLES (1975-1998),
has passed away on May 4, 2023 at the age of 97.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
May 11, 2023
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Paper | Regular issue | Vol 41, No. 8, 1995, pp.1683-1689
Published online, 1st January, 1970■ Synthesis of Enol Carbonates from a Reaction of Silyl Enolates with 1H-Imidazolylurethane
Published online, 1st January, 1970
DOI: 10.3987/COM-95-7048
■ Synthesis of Enol Carbonates from a Reaction of Silyl Enolates with 1H-Imidazolylurethane
Shunsaku Ohta, Masayuki Yamashita, Nobuaki Nagai, Ikuo Kawasaki, Kazuto Maeda, and Yoshiko Miyano
*Kyoto Pharmaceutical University, Misasagi Nakauchicho 5, Yamashinaku, Kyoto 607, Japan
Abstract
Enol Carbonates (6) were prepared by treatment of trimethylsilyl enolates (5) with 1-alkoxycarbonyl-1H-imidazoles (2) in the presence of boron trifluoride etherate and tetrabutylammonium fluoride.
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