1-fluoro-4-(1-phenyl-2-(2,2,3,3-tetramethylcyclopropylidene)vinyl)benzene 、
ethyl 5,5-diphenylpenta-2,3,4-trienoate 在
双三氟甲烷磺酰亚胺 作用下,
以
二氯甲烷 为溶剂,
反应 6.0h,
生成
ethyl 2-(3-(diphenylmethylene)-8-(4-fluorophenyl)-2,2-dimethyl-1-(propan-2-ylidene)-1,2,3,3a-tetrahydrocyclopenta[a]inden-3a-yl)acetate 、 ethyl 2-(3-((4-fluorophenyl)(phenyl)methylene)-1,1-dimethyl-8-phenyl-2-(propan-2-ylidene)-1,2,3,3a-tetrahydrocyclopenta[a]inden-3a-yl)acetate