作者:J.P. Férézou、M. Julia
DOI:10.1016/s0040-4020(01)85431-4
日期:1990.1
Alkylation of the distal double bond of geranyl acetate 8 with isoprene epoxide 5 has been carried out under anhydrous ZnCl2/nitromethane conditions to give a mixture of C15 hydroxyprenylated compounds. The major diol acetate isomer 12 was dehydrated to the expected γ-cis synthon 17 which was converted into racemic sarcinaxanthin 3 in few steps through the corresponding sulfone 21.
乙酸香叶酯8的远端双键与异戊二烯环氧化物5的烷基化已经在无水ZnCl 2 /硝基甲烷条件下进行,得到C 15羟基戊烯基化的化合物的混合物。将主要的乙酸二元醇异构体12脱水成预期的γ-顺式合成子17,将其通过相应的砜21分几步转化为外消旋的sarcinaxanthin 3。