3-Cyano-4,6-dimethyl-2-pyridinethiol 1 was allowed to react with chloroacetone and hydrazine hydrate to give the corresponding thienopyridine derivative 2 and pyrazolopyridine derivative 5, respectively. Compound 2 reacted with aldehydes to yield 3a-3c. Reaction of compound 5 with thionyl chloride and arylidinemalononitriles gives 6 and 8a,b, respectively. Compound 6 reacted with benzil and p,p-dichlorobenzil to yield the corresponding benzilimine derivatives 7a,b.
Ahmed, G. (1994). SYNTHESIS OF NEW THIENO-[2,3-b]-PYRIDINE AND PYRAZOLO-5,4-b-PYRIDINE DERIVATIVES. Zagazig Journal of Pharmaceutical Sciences, 3(2), 148-152. doi: 10.21608/zjps.1994.186590
MLA
Gamal Ahmed. "SYNTHESIS OF NEW THIENO-[2,3-b]-PYRIDINE AND PYRAZOLO-5,4-b-PYRIDINE DERIVATIVES". Zagazig Journal of Pharmaceutical Sciences, 3, 2, 1994, 148-152. doi: 10.21608/zjps.1994.186590
HARVARD
Ahmed, G. (1994). 'SYNTHESIS OF NEW THIENO-[2,3-b]-PYRIDINE AND PYRAZOLO-5,4-b-PYRIDINE DERIVATIVES', Zagazig Journal of Pharmaceutical Sciences, 3(2), pp. 148-152. doi: 10.21608/zjps.1994.186590
VANCOUVER
Ahmed, G. SYNTHESIS OF NEW THIENO-[2,3-b]-PYRIDINE AND PYRAZOLO-5,4-b-PYRIDINE DERIVATIVES. Zagazig Journal of Pharmaceutical Sciences, 1994; 3(2): 148-152. doi: 10.21608/zjps.1994.186590
)
View on SCiNiTO