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.