Synthesis of Bifunctional Thiophenes via Fiesselmann Condensation of Ynone Trifluoroborate Salts
作者:Prisca Fricero、Laurent Bialy、Werngard Czechtizky、María Méndez、Joseph P. A. Harrity
DOI:10.1021/acs.orglett.7b03558
日期:2018.1.5
Ynone trifluoroborate salts undergo a base-promoted condensation reaction with alkylthiols to generate thiophene boronates with complete regiocontrol. The products are isolated in high yield and can be further derivatized through conventional C–B bond functionalization reactions.