Acid-catalysed disproportionation and benzidine rearrangement of phenylhydrazinopyridines: reaction pathways, kinetics and mechanism1
E Buncel, KS Cheon
Index: Buncel, Erwin; Cheon, Kap-Soo Journal of the Chemical Society. Perkin Transactions 2, 1998 , # 5 p. 1241 - 1247
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Citation Number: 23
Abstract
A kinetic and product analysis study of the reaction of 4-[N′-(4-hydroxyphenylhydrazino)] pyridine (1) and 4-(N′-phenylhydrazino) pyridine (2) in 10–55 wt% aqueous sulfuric acid media is reported. The final products obtained from 1 are the oxidation product, 4-(4- hydroxyphenylazo) pyridine (3), and the two reduction products 4-aminophenol and 4- aminopyridine. This product pattern resembles that of the disproportionation products ...
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