Chiral Lewis Acid Catalyzed Ene-Reactions

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In this Subject: Organic Chemistry
By this author: Dias, L.C.

Author: Dias, L.C.

Source: Current Organic Chemistry, Volume 4, Number 3, 1 March 2000 , pp. 305-342(38)

Publisher: Bentham Science Publishers

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Abstract:

This review covers recent progress in the use of chiral Lewis acid catalysts in ene-reactions which involve carbonyl and imine compounds as enophiles. Chiral Lewis acid catalysts containing aluminum, titanium, ytterbium and copper are critically reviewed. Synthetic applications of recent systems are specifically discussed.

Keywords: Chiral lewis acid; Ene reactions; Innramolecular ene reactions; Asymmetric ene reactions; Chiral aluminum lewis acid; Chiral titanium lewis acids; Semiempirical; Ab initio molecular orbital; R BINOL; Glyoxylate ene reaction; Allylsilanes; Chloral ene-reaction; E enolsilanes; Carbonyl ene reactions; Mikami ene reaction; Ytterbium lewis acids; Coppern lewis acids; Tosyl imino esters