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Obituary
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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Communication | Regular issue | Vol 41, No. 8, 1995, pp.1617-1620
Published online, 1st January, 1970■ An Efficient Synthesis of 4-Trifluoromethylated and 4-Perfluoroalkylated Imidazoles from Mesoionic 1,3-Oxazolium-5-olates
Published online, 1st January, 1970
DOI: 10.3987/COM-95-7110
■ An Efficient Synthesis of 4-Trifluoromethylated and 4-Perfluoroalkylated Imidazoles from Mesoionic 1,3-Oxazolium-5-olates
Masami Kawase, Setsuo Saito, and Teruo Kurihara
*Faculty of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado-shi, Saitama 350-02, Japan
Abstract
4-Trifluoromethyl- and 4-perfluoroalkylimidazoles (4) were conveniently synthesized from mesoionic 4-trifluoroacetyl- or 4-perfluoroacyl-1,3-oxazolium-5-olate (1) via 2-imidazolines (3), which were formed through the regioselective attack of ammonia on the C(2) position of 1.
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