Intramolecular N–H insertion of α-diazocarbonyls catalyzed by Cu(acac)2: An efficient route to derivatives of 3-oxoazetidines, 3-oxopyrrolidines and 3-oxopiperidines
作者:Jianbo Wang、Yihua Hou、Peng Wu
DOI:10.1039/a903722e
日期:——
Cu(acac)2 was found to be an efficient catalyst for the intramolecular NâH insertion by carbenoids. The competitive intramolecular CâH insertion by carbenoids is not a problem in the diazo decomposition reaction with Cu(acac)2 as catalyst. The reaction provided derivatives of 3-oxoazetidine, 3-oxopyrrolidine and 3-oxopiperidine in moderate to good yields.
Cu(acac)2被发现是羧烯体催化的分子内N–H插入反应的高效催化剂。在以Cu(acac)2为催化剂的重氮分解反应中,羧烯体的竞争性分子内C–H插入并不是一个问题。该反应以中到好的产率提供了3-氧杂环丁烷、3-氧杂环戊烷和3-氧杂环己烷的衍生物。