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Carboxylation of sodium arylsulfinates with CO2 over mesoporous K-Cu-20TiO2
Yanjiao Chen1, Xuan Dai1, Wenwei Zhang1
1School 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.
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