Zeng Guo-ping
2008
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Journal
Journal of Hubei University of Education
Abstract
Firstly,1,5-diphenytpenta-1,4-dien-3-one is synthesized using Claisen-Schmidt reaction.Then,1-methyl-2,6-diphenylpiperidin-4-one is synthesized using 1,5-diphenylpenta-1,4-dien-3-one and methylamine,At last,Gewald reaction was utilized to obtain ethyl 2-amino-6-methyl-5,7-diphenyl-4,5,6,7-tetrahydrothieno pyridine-3-carboxylate through the reaction of 1-methyl-2,6-diphenylpiperidin-4-one with ethyl cynoacetate and sulfur in the presence of morpholine.The reaction condition and spectral properties were researched.The structures were confirmed by elemental analysis,IR,1H NMR and MS.