Use of the electrophilic c-arylation by aryllead triacetates in the construction of synthons for aizoaceae and amaryllidaceae alkaloid synthesis
作者:Darren J. Ackland、John T. Pinhey
DOI:10.1016/s0040-4039(00)95031-7
日期:1985.1
4-oxocyclohex-1-ene-carboxylate (7a) and its double bond isomer (7b), undergo regiospecific arylation with aryllead triacetates at C1; reaction of the mixture of isomers (7a) and (7b) with aryllead compounds (5a), (5c) and (5d) provides intermediates for the synthesis of (±)-o-methyl-joubertiamine (1), (±)-mesembrine (2) and (±)−lycoramine (3) respectively.
乙烯基β-酮酯,2-甲基-4-氧代环己基-2-烯-羧酸乙酯(Hagemann酯)(4),4-氧代环己基-1-烯-羧酸乙酯(7a)及其双键异构体(7b) ,在C1与三乙酸芳基铅进行区域特异性芳基化;异构体(7a)和(7b)的混合物与芳基铅化合物(5a),(5c)和(5d)的反应为合成(±)-邻-甲基-丁二胺(1),(±)- mesembrine(2)和(±)-lycoramine(3)。