Electronic excited states of small ring compounds. 3: Cyclopropene, vinylcarbene, and vinylmethylene

DR Arnold, RW Humphreys, WJ Leigh…

文献索引：Arnold,D.R. et al. Journal of the American Chemical Society, 1976 , vol. 98, # 20 p. 6225 - 6233

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被引用次数: 32

摘要

Abstract: The 3, 3-isopyrazoles IIa-e have been prepared. Irradiation of IIa-e produces the vinyl diazo compounds IXa-e. When the vinyl diazo compounds IXa-e are irradiated at 10 OC the cyclopropenes Xa-d result in high yields. When the irradiation of the vinyl diazo compounds IXa-d is carried out at ca. 5 K in rigid medium (MCIP), the ESR spectrum indicates a stable triplet species is produced. The vinylmethylene structure Ia-d has been ...