All articles of this category A Novel one step synthesis of pyrazolo[1,5- a ]pyridines has been developed by condensation of N -amino-3-cyano-4,6-dimethyl-2(1 H )-pyridone ( 1 ) with compounds containing acetyl or active methylene group in presence of anhydrous zinc chloride in refluxing dimethylformamide.
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Phadke et al. (1987) studied this question.