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Communication | Special issue | Vol 52, No. 2, 2000, pp.545-548
Published online, 1st January, 1970
DOI: 10.3987/COM-99-S70
Lanthanoid Triflates Catalyzed Reaction of a Silyl Ynolate with Aldimines

Mitsuru Shindo,* Soichiro Oya, Yusuke Sato, and Kozo Shishido

*Institute for Medicinal Resources, University of Tokushima, Sho-machi, Tokushima 770-8505, Japan

Abstract

A silyl ynolate, prepared from α,α-dibromo ester in one-pot, reacts with N-(p-methoxyphenyl)aldimines in the presence of a catalytic amount of lanthanoid triflates to provide α,β-unsaturated amides with high E selectivity.