Arylamino-thieno-oxobutanamides under Lawesson’s Conditions: Competition between Thienylpyrrole and Bithiophene Formation
作者:M. Manuela Raposo、Ana M. Sampaio、G. Kirsch
DOI:10.1055/s-2004-834952
日期:——
1-Aryl-2-thienyl-substituted pyrroles and/or 5-arylamino-2,2′-bithiophenes were synthesized by treatment of arylamino-thieno-oxobutanamides with Lawesson’s reagent. These in turn were prepared by direct amidation of 4-oxo-(2-thienyl)butanoic acid through DCC-BtOH mediated reactions.
通过用 Lawesson 试剂处理芳基氨基噻吩氧代丁酰胺,合成了 1-芳基-2-噻吩基取代的吡咯和/或 5-芳基氨基-2,2′-联噻吩。这些化合物又是通过 DCC-BtOH 介导的 4-氧代-(2-噻吩基)丁酸直接酰胺化反应制备的。