A Rapid Synthesis of Thieno[2,3-<i>c</i>]pyridine and 2-Substituted Thieno[2,3-<i>c</i>]pyridines
作者:Amaury Graulich、Jean-François Liégeois
DOI:10.1055/s-2004-829134
日期:——
A convenient preparation of thieno[2,3-c]pyridine 3a and of several original 2-substituted-thieno[2,3-c]pyridines 3b-f is achieved by cyclization of the Schiff base resulting from the condensation between a 2-thiophenecarboxaldehyde 1a-f and aminoacetaldehyde dimethyl acetal. This procedure provides especially good yields in the case of 2-halogenated analogues.
通过由 2-噻吩甲醛1a-f和氨基乙醛二甲基缩醛。在 2-卤代类似物的情况下,该程序提供了特别好的收率。