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

Yanjiao Chen; Xuan Dai; Wenwei Zhang; Tao Wu; Lei Chen; Xinhua Peng

doi:10.1039/d1ra05228d

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

RSC Adv. 2021 Dec 24;12(2):772-776. doi: 10.1039/d1ra05228d. eCollection 2021 Dec 22.

Authors

Yanjiao Chen¹, Xuan Dai¹, Wenwei Zhang¹, Tao Wu¹, Lei Chen¹, Xinhua Peng¹

Affiliation

¹ School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology Nanjing 210094 China xhpeng@njust.edu.cn xinhpeng@njust.edu.cn.

Abstract

A mesoporous ternary metal oxide (K-Cu-20TiO₂) 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.