Pyrrole Synthesis Catalyzed by AgOTf or Cationic Au(I) Complexes
作者:Tyler J. Harrison、Jennifer A. Kozak、Montserrat Corbella-Pané、Gregory R. Dake
DOI:10.1021/jo060382c
日期:2006.6.1
Either silver trifluoromethanesulfonate or a mixture of gold( I) chloride, silver trifluoromethanesulfonate, and triphenylphosphine catalyze the formation of pyrroles from substituted beta-alkynyl ketones and amines. The reactions proceed by using 5 mol % of catalyst with yields of isolated pyrroles ranging from 13% to 92%. Sixteen examples are used to compare the effectiveness of each catalyst.
Efficient synthesis of substituted pyrroles through Pd(OCOCF3)2-catalyzed reaction of 5-hexen-2-one with primary amines
作者:Xi Chen、Meng Yang、Min Zhou
DOI:10.1016/j.tetlet.2016.10.029
日期:2016.11
An efficient and facile Pd(OCOCF3)2-catalyzed one-pot cascade protocol has been developed for the synthesis of multiple substituted pyrroles in good to excellent yields. Unlike the reported method starting from the 2-alkenal-1,3-carbonyl compounds, the process utilizes the less reactive 5-hexen-2-one and the method has great potential as a complement to the current developed methods.