Carboxylation of sodium arylsulfinates with CO2 over mesoporous K-Cu-20TiO2

A mesoporous ternary metal oxide (K-Cu-20TiO(2)) from a simple sol-gel method was prepared to catalyze heterogeneously the carboxylation reaction of various sodium arylsulfinates under atmospheric carbon dioxide. The catalyst showed excellent selectivity and good functional group tolerance to carboxylation recycle. The oxidation state of active copper(i) by characterization using FTIR, XRD, TG, XPS and TEM techniques proved to be efficacious to conduct atom economical reactions.

Automated summary

A mesoporous ternary metal oxide catalyst was prepared using a simple sol-gel method for the carboxylation reaction with excellent selectivity and functional group tolerance. The oxidation state of active copper(i) played a key role in conducting atom economical reactions.