PURPLE PIGMENTS PRODUCED BY ACETYLATION OF 2-(2-OXOINDOLIN-3-YL)-GLYOXYLATES IN THE PRESENCE OF PYRIDINE - SOME NEW EVIDENCE

被引：4

作者：

BALLANTINE, JA

机构：

[1] Department of Chemistry, University College of Swansea, Swansea SA2 8PP, Singleton Park

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1979年 / 05期

关键词：

D O I：

10.1039/p19790001182

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

As a result of the analysis of 13C n.m.r. spectra, a new structure (7) is preferred for the purple pigments obtained by the reactions of 2-(2-oxoindolin-3-yl)glyoxylates with acetic anhydride in the presence of pyridine. A mechanistic rationalisation of the formation of the pigments and their unusual rearrangement on oxidation with chromic acid are discussed.

引用

页码：1182 / 1184

页数：3