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Aldol reaction of aluminium enolate resulting from 1,4-addition of Me2AlSPh to α,β-unsaturated carbonyl compound. A 1-acylethenyl anion equivalent

✍ Scribed by Akira Itoh; Shuji Ozawa; Koichiro Oshima; Hitosi Nozaki

Publisher: Elsevier Science
Year: 1980
Tongue: French
Weight: 222 KB
Volume: 21
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)85473-3

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✦ Synopsis

Me2AlSPh or Me2AlSeMe adds to a,B-unsaturated carbonyl compounds in 1,4-fashion. The resulting aluminium enolates react with aldehydes effectively to afford the adducts of the title anion after formal PhSH(or MeSeH) -elimination.

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Formation of a reasonably stabilized tri

Formation of a reasonably stabilized trichloromethyl anion by the reaction of chloroform with electrogenerated base, and its 1,4-addition to α,β-unsaturated carbonyl compounds

✍ Tatsuya Shono; Manabu Ishifune; Osamu Ishige; Hiroshi Uyama; Shigenori Kashimura 📂 Article 📅 1990 🏛 Elsevier Science 🌐 French ⚖ 260 KB

A reasonably stabilized trichloromethyl anion (TCMA) was formed by the reaction of chloroform with an electrogenerated base prepared by the electroreduction of Zpyrrolidone, and the addition of this TCIvIA to a$unsaturated esters gave the corresponding B-trichloromethyl esters in good yields.