The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2023
Filed:
Mar. 18, 2021
Soochow University, Suzhou, CN;
Xiaobing Wan, Suzhou, CN;
Hanghang Wang, Suzhou, CN;
SOOCHOW UNIVERSITY, Suzhou, CN;
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.