Effect of Varying the Anionic Component of a Copper(I) Catalyst on Homologation of Arylacetylenes to Allenes by the Mannich Reaction
作者:Vipan Kumar、Alex Chipeleme、Kelly Chibale
DOI:10.1002/ejoc.200700859
日期:2008.1
The effect of varying the anionic component of a copper(I) catalyst in the homologation of terminal arylacetylenes to allenes by the Mannich reaction was investigated. Varying amounts of allenes, Mannich bases and dimers were obtained depending on the nature of the anionic component of the copper catalyst. On the other hand, Eglinton–Glaser dimerizations were achieved in high yields with 0.5 equiv
研究了改变铜 (I) 催化剂的阴离子组分在通过曼尼希反应将末端芳基乙炔同系为丙二烯中的影响。根据铜催化剂的阴离子组分的性质,获得不同量的丙二烯、曼尼希碱和二聚体。另一方面,Eglinton-Glaser 二聚化以 0.5 当量的高产率实现。三乙胺。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)