Cycloaddition of β-substituted enones to a bicyclic sydnone: Observation of an unexpectedly facile hydrocarbon elimination
作者:Scott D. Larsen、Esther Martinborough
DOI:10.1016/s0040-4039(01)80759-0
日期:1989.1
Cycloaddition of β-alkyl- or β-arylenones to bicyclic sydnone 3 in the absence of added oxidant affords mixtures of the tetrahydropyrazolo[1,5-a]pyridines 4 and 5. The amount of 5 formed was dependent on the nature of R.
在没有添加氧化剂的情况下,将β-烷基或β-芳烯酮环加成到双环sydnone 3上,得到四氢吡唑并[1,5-a]吡啶4和5的混合物。形成的5的数量取决于R的性质。