(3a'R,8a'S,8b'S)-3a',5',7'-trimethyl-3a',6',8a',8b'-tetrahydrospiro[cyclopropane-1,4'-indeno[5,4-d][1,3]dioxol]-2'-one 在
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
苯 为溶剂,
反应 20.0h,
以93%的产率得到(3a'R,8b'S)-3a',5',7'-trimethyl-3a',8b'-dihydrospiro[cyclopropane-1,4'-indeno[5,4-d][1,3]dioxol]-2'-one