Zinc mediated Barbier type propargylation of cyclic imides
摘要:
Propargylations of cyclic imides such as N-benzylsuccinimide and N-methylsuccinimide were accomplished under mild Barbier type conditions using zinc metal, propargyl bromides and catalyst. The use of PbBr2 is essential to ensure the completion of the reaction to provided propargylated gamma-hydroxylactams in high yields without the recovery of cyclic imides. (C) 2000 Elsevier Science Ltd. All rights reserved.
Condensation of Iminophosphoranes with Dicarbonyl Dihalides: A One-Step Synthesis of New Azepine Derivatives
作者:Thierry Aubert、Michel Farnier、Roger Guilard
DOI:10.1055/s-1990-26817
日期:——
New azepine and 3-benzazepine derivatives 3-6 have been synthesized by condensation of iminophosphoranes with adipoyl chloride and 1,2-benzenediacetyl dichloride, respectively.