Regioselective Synthesis of a New Class of N -Arylsulfonylaminated Biheterocycles
作者:Galal Hamza Elgemeie、Shahinaz Hassan Sayed
DOI:10.1080/10426500307914
日期:2003.3.1
A novel and efficient method for the synthesis of a new variety of novel N-arylsulfonylamino derivatives of biheterocycles by the reaction of N-cyanoaceto-arylsulphonylhydrazides with alpha,beta-unsaturated nitriles. The synthetic potential of the method is demonstrated.
REGIOSELECTIVE SYNTHESIS OF A NEW CLASS OF N-ARYLSULFONYLAMINATED BIHETEROCYCLES
作者:Galal Hamza Elgemeie、Shahinaz Hassan Sayed
DOI:10.1515/hc.2002.8.6.587
日期:2002.1
honylhydrazides 2 and 3 prompted us to investigate this reaction between 2 and 3 under other basic reaction conditions. In contrast, it has been found that compounds 3 reacted with ethyl furfurylideneand thiophenylidenecyanoacetates 3c,d in refluxing pyridine for 1 h to yield a product for which the N-arylsulphonylamino-6-hydroxy-2-pyridones lOa-d were assigned. The each structure of compounds 10 was