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New Indigo Syntheses. Preliminary Communication
Author(s) -
Gosteli Jacques
Publication year - 1977
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19770600619
Subject(s) - chemistry , nitromethane , nitration , acylation , styrene , indigo , organic chemistry , combinatorial chemistry , catalysis , copolymer , polymer , art , visual arts
Three novel routes for the preparation of the dyestuff indigo are described. Two of the methods use isatoic anhydride, the third one styrene as starting materials. Key reactions are acylation of both dimsyl and nitromethane anions, Pummerer rearrangement and Nef reaction. A novel nitration of styrene is the basis of the third method.