来源：Indian Journal of Heterocyclic Chemistry, 2010, 19(4): 407-408.
摘要
A convenient synthesis of pyrano (2,3-b) quinolin-2-one and its derivatives by the Wittig reaction of carbalkoxymethylene (triphenyl) phoshorane with 4-substituted-3-formylquinolin-2-ones has been reported.
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