Practical synthesis of indoles and benzofurans in water using a heterogeneous bimetallic catalyst
作者:Cybille Rossy、Eric Fouquet、François-Xavier Felpin
DOI:10.3762/bjoc.9.160
日期:——
paper describes the preparation of indoles, azaindoles and benzofurans in pure water by using a new heterogeneous Pd-Cu/C catalyst through a cascade Sonogashira alkynylation-cyclization sequence. Details of the optimization studies and the substrate scope are discussed. This procedure allows the preparation of heterocycles with good yields and is tolerant to a wide variety of functional groups.
本文描述了使用新型多相 Pd-Cu/C 催化剂通过级联 Sonogashira 炔基化-环化序列在纯水中制备吲哚、氮杂吲哚和苯并呋喃。讨论了优化研究和底物范围的细节。该程序允许以良好的产率制备杂环,并且对多种官能团具有耐受性。