TiCl4 mediated addition of silylketeneacetals derived from N-methylephedrine esters to various aldehydes and imines was used as the key-step in the enantio- and diastereo-controlled synthesis ofβ-lactams.
MOCHALIN, V. B.;XENKINA, T. V., ZH. ORGAN. XIMII, 1982, 18, N 3, 672-673
作者:MOCHALIN, V. B.、XENKINA, T. V.
DOI:——
日期:——
Lewis Acid-Promoted [2+2] Azetidine Annulation of<i>N</i>-Acylaldimines with Allyltriisopropylsilane
作者:Tadao Uyehara、Mizue Yuuki、Hiroaki Masaki、Moriji Matsumoto、Masako Ueno、Toshio Sato
DOI:10.1246/cl.1995.789
日期:1995.9
Lewis acid-catalyzed reactions of an N-acylaldimine with allyltriisopropylsilane gave [2+2] azetidine annulation products, while those of an N-ethoxycarbonylaldimine gave an allylated product.