Investigations on arylhydrazones of substituted glyoxylic acids

Autor:	P. S. Pel'kis, V. D. Panchenko, E. F. Gorbenko, R. G. Dubenko
Rok vydání:	1972
Předmět:	chemistry.chemical_compound Acetic anhydride Hydroxylamine Sodium ethoxide Aqueous solution chemistry Amide Aryl Organic Chemistry Organic chemistry Oxime Sodium acetate
Zdroj:	Chemistry of Heterocyclic Compounds. 5:551-553
ISSN:	1573-8353 0009-3122
DOI:	10.1007/bf00470286
Popis:	The reaction of arylhydrazones of ethyl cyanoglyoxylate with hydroxylamine hydrochloride in aqueous ethanolic solution in the presence of sodium acetate at the boil has given 3-amino-4-arylazoisoxazol-5-ones. The reaction of arylhydrazones of ethy cyanoglyoxylate with hydroxylamine in the presence of sodium ethoxide in the cold has given arylhydrazones of the amide-oxime of ethyl mesoxalate. The action of acetic anhydride or aryl isothiocyanates on arylhydrazones of the amide oxime of ethyl mesoxalate has given arylhydrazones of the ethyl esters of 5′-substituted 1′,2′,4′-oxadiazolyl- or 1′,2′, 4′-thiadiazolylglyoxylic acids.
Databáze:	OpenAIRE
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