(E,3aR,6S,6aR)-methyl 3-(tetrahydro-4-hydroxy-2,2-dimethylfuro[3,4-d][1,3]dioxol-6-yl)acrylate 、
(methoxycarbonylmethylene)tributylphosphorane 在
苯甲酸 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
生成 (2E,1''E,4S,4'R,5'S)-methyl 4-(5'-(2''-(methoxycarbonyl)vinyl)-2',2'-dimethyl-1',3'-dioxolan-4'-yl)-4-hydroxybut-2-enoate 、
(E,E,4S,4'R,5'S)-methyl 4-(5'-(2''-(methoxycarbonyl)vinyl)-2',2'-dimethyl-1',3'-dioxolan-4'-yl)-4-hydroxybut-2-enoate