作者:Rosaleen J. Anderson、Andrei S. Batsanov、Natalia Belskaia、Paul W. Groundwater、Otto Meth-Cohn、Andrey Zaytsev
DOI:10.1016/j.tetlet.2003.11.095
日期:2004.1
A new, one-step procedure for the generation of azomethine ylides, 4 and 20, via chloroiminium salts, 3 and 19, is reported. The generation of the azomethine ylides was confirmed by their trapping with dimethyl acetylenedicarboxylate (DMAD) which, upon spontaneous 1,4-dehydrochlorination, gave the corresponding pyrroles 17 and 21.
据报道,一种新的一步步骤的方法是通过氯亚胺盐3和19生成甲亚胺基化物4和20。通过用乙炔基二羧酸二甲酯(DMAD)捕集来确认甲亚胺烷基化物的生成,在自发的1,4-脱氯化氢作用下,得到相应的吡咯17和21。