Approaches to oximidines, lobatamides and related natural products: the coupling reactions of 3-iodoacrolein O-methyl oximes
作者:Steven A Raw、Richard J.K Taylor
DOI:10.1016/s0040-4039(00)01862-1
日期:2000.12
2E- and 2Z-3-iodoacrolein O-methyl oximes are prepared in two steps from ethyl propiolate. Lithium–iodine exchange is effected and the resulting organolithium reagents added to several electrophiles, including styryl isocyanate which gives a conjugated O-methyl oxime enamide of the type found in the side chains of the oximidine, lobatamide and CJ-12950 natural products. The Pd(0) catalysed cross-coupling
由丙酸乙酯分两步制备2 E-和2 Z -3-碘丙烯醛O-甲基肟。进行锂-碘交换,然后将所得的有机锂试剂添加到几种亲电试剂中,其中包括异氰酸苯乙烯基酯,后者可得到在肟基亚胺,洛巴胺和CJ-12950天然产物的侧链中发现的共轭O-甲基肟肟酰胺。还探讨了这些碘代烯烃的Pd(0)催化交叉偶联。