Reductive carbonylation of ethylene with simulated flue gas: in situ CO2 capture and conversion

Abstract

A halide-free Pd-based catalyst enables efficient reductive ethylene carbonylation using dilute CO₂ (17.1 vol%) from simulated flue gas. Achieving a turnover number of 89 under mild conditions, the system exhibits exceptional tolerance to industrial contaminants, including SO_x, NO_x, CO and moisture impurities, avoiding energy-intensive CO₂ purification. Mechanistic studies reveal a dual-pathway mechanism involving both CO and palladalactone intermediates, providing a practical strategy for integrated CO₂ capture and utilization.