Amidoalkylating Properties of 1-(<i>N</i>-Acylamino)Alkyltriphenylphosphonium Salts
作者:Agnieszka Październiok-Holewa、Jakub Adamek、Roman Mazurkiewicz、Katarzyna Zielińska
DOI:10.1080/10426507.2012.744014
日期:2013.1.1
Abstract Easily accessible 1-(N-acylamino)alkyltriphenylphosphonium salts react smoothly with nitrogen, sulfur, phosphorus and oxygen nucleophiles in the presence of (i-Pr)2EtN to give the expected α-amidoalkylation products, usually in good or very good yields. α-Amidoalkylation of dialkyl malonates or acetylacetates requires the application of a much stronger base (DBU) and gives the best results
摘要 容易获得的 1-(N-酰基氨基) 烷基三苯基鏻盐在 (i-Pr)2EtN 存在下与氮、硫、磷和氧亲核试剂顺利反应,得到预期的 α-酰胺烷基化产物,通常产率良好或非常好。丙二酸二烷基酯或乙酰乙酸酯的 α-酰胺烷基化需要使用更强的碱 (DBU),并在微波辐射的影响下获得最佳结果。在 (i-Pr)2EtN 存在下,在微波反应器中成功地进行了烯胺的 α-酰胺烷基化。1-(N-酰基氨基)烷基三苯基鏻盐可被认为是一种新型、方便、有效的α-酰胺烷基化试剂。图形概要