Yb(OTf)3-CATALYZED MICHAEL ADDITION REACTIONS OF β-KETOESTERS ON SILICA GEL SUPPORTS AND AT HIGH PRESSURE[1]
TETRAHEDRON LETTERS（1997）
摘要
Michael addition reactions of beta-ketoesters with a variety of alpha,beta-unsaturated carbonyl compounds proceed efficiently using a Yb(OTf)(3) catalyst either on a silica gel support or at high pressure. (C) 1997 Elsevier Science Ltd.
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