(1R,3R,4R,5R,6R,7R)-3-ethyl-4,6-dihydroxy-7-<(1E,3E)-5-hydroxypenta-1,3-dienyl>-4,5-dimethyl-2,8-dioxabicyclo<3.3.0>octane 在
manganese(IV) oxide 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以86%的产率得到(1R,3R,4R,5R,6R,7R)-3-ethyl-7-<(1E,3E)-4-formylbuta-1,3-dienyl>-4,6-dihydroxy-4,5-dimethyl-2,8-dioxabicyclo<3.3.0>octane