Zeolite Y nanosheet assembled palladium catalysts with high catalytic activity and selectivity in the vinylation of thiophenes

Abstract

Zeolite Y nanosheets with a micro–meso–macroporous structure were synthesized, and applied in the assembly of a Pd catalyst (Pd/NS-Y) for direct vinylation of thiophenes with high activity and selectivity, as compared to Pd(OAc)₂, Pd(NO₃)₂, and Pd(PPh₃)₄ catalysts. This feature should be assigned to the highly dispersed Pd^δ+ (δ < 2) species in Pd/NS-Y, which are more active than Pd²⁺.