邻四氯苯醌 、
2-methyl-3,4,5-triphenyl-cis-transoid-1,9-cis-7,8-oxatricyclo<4,3,0,0>nona-2,4-diene 以
苯 为溶剂,
反应 0.5h,
以90%的产率得到5,6,7,8-tetrachloro-9a-methyl-2,3,3a-triphenyl-1a,1b,3a,9a,9b,9c-hexahydrobenzo
oxireno<2',3':1,2>cyclobuta<3,4-f><1,4>benzodioxin