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李學沂,曺燦湜,金宇鍾,禹海允 慶北大學校 1990 論文集 Vol.50 No.-
The majority of carbenes add to olefins to give cyclopropanes. In this study, 2-diazo-1,3-indandione, 2-diazo-1-indanone, and 3-diazooxindole were used as carbene precursors. Irradiation of these diazo compounds with trichloroethylene, acrylonitrile, cyclohexene, and cyclooctene was investigated. The addition of carbenes to benzene generally affords norcaradiene or cycloheptatriene or both. Irradiation of 2-diazo-1,3-indandione with benzene gave only cycloheptatriene derivative in 24% yield. But irradiation of 2-diazo-1-indanone with benzene gave norcardiene in equiribrium with cycloheptatriene derivative in 24% yield.