作者:Mitsuru Kitamura、Yuki Shintaku、Daisuke Kudo、Tatsuo Okauchi
DOI:10.1016/j.tetlet.2010.07.055
日期:2010.9
gamma,delta-Unsaturated O-methyl oximes were cyclized to dihydropyrrole by the treatment of (1-butene)ZrCp2 3 prepared by Negishi's procedure (reaction with Cp2ZrCl2 and two equivalents of n-BuLi). In this cyclization, the geometry of oximes was affected and syn-oximes were cyclized efficiently. However, it was found that the anti-oxime is not suitable for the cyclization. (C) 2010 Elsevier Ltd. All rights reserved.