The synthesis of isorenieratene, a natural carotenoid isolated from the marine sponge Reniera japonica and from some anoxygenic phototrophic bacteria or nonphotosynthetic actinomycetes, was performed from α-, β- and retro-ionones. In this series of cyclohexenes, this synthesis is the first to include a one-pot aromatization of the cyclic end group with concomitant regioselective migration of one methyl
从海海绵 Reniera japonica 和一些缺氧光养细菌或非光合放线菌中分离出的天然类
胡萝卜素异戊二烯是从 α-、β- 和逆紫罗兰酮合成的。在这一系列的
环己烯中,这种合成是第一个包括环状端基的一锅芳构化,伴随着一个甲基从 gem 二甲基官能团的区域选择性迁移。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)