作者:G. Tacconi、A. Gamba、F. Marinone、G. Desimoni
DOI:10.1016/s0040-4020(01)90725-2
日期:1971.1
The reaction of some enammes with N-substituted 3-oxindolideneacetophenones has been investigated. When the oxindole N-substituent is an acyl group, 1,4-cycloaddition occurs leading to 2,3-dihydropyrano[2,3-b]indole derivatives: when the N-substituent is an alkyl group, 1,2-cycloaddition takes place and spirocyclobutanoxindole derivatives are formed. Some intermediate cases are also presented. A possible
已经研究了某些酶与N-取代的3-氧代吲哚烯乙酮的反应。当羟吲哚N-取代基为酰基时,发生1,4-环加成反应,生成2,3-二氢吡喃并[2,3- b ]吲哚衍生物:当N-取代基为烷基时,1,2-环加成反应形成螺环丁二烯衍生物。还介绍了一些中间情况。提出了可能的合理化反应路径上的电子效应N-取代基的方法。