公开(公告)号：US11840504B2

公开(公告)日：2023-12-12

申请号：US17205937

申请日：2021-03-18

Applicant: SOOCHOW UNIVERSITY

Inventor： Xiaobing Wan ,  Hanghang Wang

IPC: C07C313/04

CPC classification number: C07C313/04

Abstract: The present invention discloses a method for preparing a perfluoroalkyl sulfinate ester. The method includes reacting an α-carbonyldiazo compound and a sodium perfluoroalkyl sulfinate, in an organic solvent, in the presence of anhydrous copper acetate as an optimal catalyst and tert-butyl hydroperoxide (TBHP) as a green oxidant, to obtain the perfluoroalkyl sulfinate ester. Compared to the prior art, the present method has the advantages of a wide range of reaction substrates, a short reaction time, a high reaction yield, and mild reaction conditions. The reaction does not require pre-activation of sodium perfluoroalkyl sulfinate, which can participate in the reaction directly, making reaction operations simple. The present method uses TBHP as a green oxidant and produces tert-butanol and water after reaction. Moreover, the present method avoids using a bromide or a chloride as a reaction material, and thus avoids formation of a large amount of a halide salt.