A Simple and Efficient Synthesis of Substituted 2,2′-Bithiophene and 2,2′:5′,2″-Terthiophene
作者:Anastasia S. Kostyuchenko、Alexey M. Averkov、Alexander S. Fisyuk
DOI:10.1021/ol500356w
日期:2014.4.4
A simple and efficient approach is developed for the synthesis of substituted2,2′-bithiophene- and 2,2′:5′,2″-terthiophene-5-carboxylic acids and esters which is based on thiophene ring closure in the Fiesselmann reaction. Using this method, derivatives containing a long alkyl chain with or without an end functional group or an aryl substituent can be conveniently prepared.