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Stereoselective synthesis of β-substituted α,β-unsaturated esters by dialkylcuprate coupling to the enol phosphate of β-keto esters

✍ Scribed by Sum, Fuk-Wah; Weiler, Larry

Book ID
120474355
Publisher
NRC Research Press
Year
1979
Tongue
French
Weight
559 KB
Volume
57
Category
Article
ISSN
0008-4042

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✍ Masahiko Yamaguchi; Michinori Tsukamoto; Shinya Tanaka; Ichiro Hirao 📂 Article 📅 1984 🏛 Elsevier Science 🌐 French ⚖ 244 KB

Under a proper reaction condition, simple ester enolates add to d,e-unsaturated esters highly stereoselectively to give erythro or threoglutarates. Previously, we have shown that lithium enolates derived from simple monoesters react with fi,p-unsaturated esters to give glutarates in high yiela. 1)