Synthesis of Indolin-2-one, Isoindolin-1-one, and Indole Derivatives from Homophthalic Acid
作者:Metin Balci、Alper Kilikli、Cagatay Dengiz、Sevil Özcan
DOI:10.1055/s-0030-1260235
日期:2011.11
indolin-2-one and isoindolin-1-one and their derivatives starting from 2-(carboxymethyl)benzoic acid, which was first regiospecifically converted into the isomeric half esters. Transformation of the acid functionalities to the acyl azides followed by Curtius rearrangement gave the regioisomeric isocyanates. Reaction of the isocyanates with aniline produced urethane derivatives. Intramolecular cyclization provided
我们在此报告从2-(羧甲基)苯甲酸开始制备吲哚啉-2-酮和异吲哚啉-1-酮及其衍生物,其首先被区域特异性地转化为异构半酯。酸官能团向酰基叠氮化物的转化,然后Curtius重排,得到了区域异构的异氰酸酯。异氰酸酯与苯胺反应生成氨基甲酸酯衍生物。分子内环化提供了目标化合物。 酰胺-叠氮化物-稠环系统-杂环-吲哚