methyl 2-(3-ethyl-3-phenylcyclobutylidene)acetate 、
四苯硼钠 在
chloro(1,5-cyclooctadiene)rhodium(I) dimer 作用下,
以
甲苯 为溶剂,
反应 0.05h,
生成 (1SR,3'RS)-3'-ethyl-3'-methyl-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-3-one 、 (1RS,3'RS)-3'-ethyl-3'-methyl-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-3-one