Selective cis-addition of C–H bonds of pyrroles and thiophenes to alkynes catalyzed by a dinuclear palladium complex
摘要:
Pyrroles and thiophenes reacted with alkynes in the presence of dinuclear palladium complexes with high stereoselectivity (cis-addition) in almost all cases. While regioselectivity in the reaction with pyrroles depended on substituents on the nitrogen atom and alkynes all reactions of thiophenes afforded 2-alkenylthiophenes. (c) 2005 Elsevier Ltd. All rights reserved.