A series of 15 benzene-fused hexahydropyrrolo[1,2-b]isoquinolonic acids with substantial degree of steric encumbrance has been prepared via a novel variant of the Castagnoli-Cushman reaction of homophthalic anhydride (HPA) and various indolenines. The employment of a special kind of a cyclic imine component reaction allowed, for the first time, isolating a Mannich-type adduct between HPA and an imine
通过高纯酸酐(HPA)和各种
吲哚的卡斯塔尼奥利-库什曼反应的新变体,制备了一系列具有相当大的空间阻垢性的15种苯稠合六氢
吡咯并[1,2-b]
异喹啉酸。采用一种特殊的环状
亚胺组分反应,首次允许在HPA与
亚胺组分之间分离出曼尼希型加合物,该产物已被假定但在类似反应中从未获得。