A new general method for substituted 4-alkylthio-N-arylsulphonyl-amino-2-pyridones: Reaction of ketene-SS-acetals with arylsulphonylhydrazides

Citation
Gh. Elgemeie et al., A new general method for substituted 4-alkylthio-N-arylsulphonyl-amino-2-pyridones: Reaction of ketene-SS-acetals with arylsulphonylhydrazides, PHOSPHOR SU, 170, 2001, pp. 171-179
Citations number
6
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
ISSN journal
10426507 → ACNP
Volume
170
Year of publication
2001
Pages
171 - 179
Database
ISI
SICI code
1042-6507(2001)170:<171:ANGMFS>2.0.ZU;2-K
Abstract
A novel and efficient method for the synthesis of substituted 4-alkylthio-N -arylsulphonylamino-2-pyridones via the reaction of ketene-SS-acetals with N-cyanoacetoarylsulfonyl-hydrazides has been investigated. 1-Arylsulfonylam ino-pyrazolo[3,4-c]pyridine-2(1H)-ones have also been prepared from the rea ction of 4-alkylthio-N-arylsulfonylamino-2-pyridones with hydrazines.