An efficient one-pot synthetic protocol for the preparation of 1,2,3-trisubstituted dienes by a sequential addition of 2-arylmethylidene-2-phosphonoacetates and various aldehydes to trimethylsulfonium iodide/sodium dimsylate in DMSO–THF has been developed. The dienes were produced with very high stereoselectivity preferring for the (Z)-isomer.
开发了一种高效的一锅合成方案,通过将 2-芳基亚甲基-2-
膦酰基乙酸酯和各种醛连续添加到
DMSO-THF 中的
三甲基碘化锍/二
磺酸钠来制备 1,2,3-三取代二烯。所生产的二烯具有非常高的立体选择性,优选 (Z)-异构体。