A NEW GENERAL METHOD FOR SUBSTITUTED 4-ALKYLTHIO-N-ARYLSULPHONYL-AMINO-2-PYRIDONES: REACTION OF KETENE-SS-ACETALS WITH ARYLSULPHONYLHYDRAZIDES
摘要:
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-Arylsulfonylamino-pyrazolo[3,4-c]pyridine-2(1H)-ones have also been prepared from the reaction of 4-alkylthio-N-arylsulfonylamino-2-pyridones with hydrazines.
A NEW GENERAL METHOD FOR SUBSTITUTED 4-ALKYLTHIO-N-ARYLSULPHONYL-AMINO-2-PYRIDONES: REACTION OF KETENE-SS-ACETALS WITH ARYLSULPHONYLHYDRAZIDES
摘要:
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-Arylsulfonylamino-pyrazolo[3,4-c]pyridine-2(1H)-ones have also been prepared from the reaction of 4-alkylthio-N-arylsulfonylamino-2-pyridones with hydrazines.