作者:P. Ashkenazi、D. Ginsburg、G. Scharf、B. Fuchs
DOI:10.1016/0040-4020(77)84083-0
日期:1977.1
Reaction of 1,2-dihydrophthalic anhydride and several of its imide derivatives, 1,2-dihydrophthalide and 1,2-dihydrophthalan with N-methyl- and N-phenyl-1,2,4-triazoline-3,5-dione affords two configurational families of adducts through attack from both possible directions. Major attack in the first three cases occurs mainly syn- to the hetero-ring but in the two latter cases anti- to it. These results
1,2-二氢邻苯二甲酸酐及其几种酰亚胺衍生物,1,2-二氢邻苯二甲酸酯和1,2-二氢邻苯二甲酸酐与N-甲基-和N-苯基-1,2,4-三唑啉-3,5-二酮的反应通过从两个可能的方向进行攻击,形成了两个构型的加合物家族。前三案件主要攻击主要发生顺式-在异质环,但在后两种情况下的反-它。这些结果可以通过前者通过二次轨道重叠调用过渡态的稳定以及后者的简单空间效应来解释。