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机译:Chitosan functionalized by citric acid: an efficient catalyst for one-pot synthesis of 2,4-diamino-5H-1benzopyrano2,3-bpyridine-3-carbonitriles 5-(arylthio) or 5-(arylmethyl)thio substituted
Univ Kashan, Fac Chem, Dept Organ Chem, POB 87317-51167, Kashan, Iran;
Islamic Azad Univ, Firoozabad Branch, Dept Chem, Fars, Iran;
Benzopyranopyridines; functionalized chitosan; citric acid; multicomponent reaction; one-pot synthesis;