Article ID Journal Published Year Pages File Type
5281646 Tetrahedron Letters 2008 4 Pages PDF
Abstract

A new synthesis of 2,3,5-trisubstituted pyrrolidines from the imino-aldols formed from Lewis acid-mediated reactions of (2-trimethylsilylmethyl)cyclopropyl ketones with benzylimines is described. The ring closure of the imino-aldols formed from the benzylimines of 2-chloro-, 2-fluoro-, and 2-trifluoromethylbenzaldehydes proceeds with predominantly 2,5-anti selectivity to generate the corresponding pyrrolidines in moderate yields.

Graphical abstractA highly diastereoselective preparation of 2,3,5-trisubstituted pyrrolidines from the imino-aldols formed via reaction of (2-trimethylsilylmethyl)cyclopropyl ketones with the benzylimines of aromatic aldehydes is described.Download full-size image

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Physical Sciences and Engineering Chemistry Organic Chemistry
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