原丁酸三甲酯 、
(-)-(S)-2-(3-ethyl-2,2-dimethyl-3-cyclopenten-1-yl)-2-propen-1-ol 在
三甲基乙酸 作用下,
反应 5.5h,
生成 (-)-methyl (1'R)-2-ethyl-4-(3'-ethyl-2',2'-dimethyl-3'-cyclopenten-1'-yl)-4-pentenoate 、 (-)-methyl (1'R)-2-ethyl-4-(3'-ethyl-2',2'-dimethyl-3'-cyclopenten-1'-yl)-4-pentenoate