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- Title
Deoxyfluorination of Carboxylic, Sulfonic, Phosphinic Acids and Phosphine Oxides by Perfluoroalkyl Ether Carboxylic Acids Featuring CF<sub>2</sub>O Units.
- Authors
Zhao, Shiyu Please verify that the linked ORCID identifiers are correct for each author.; Guo, Yong; Su, Zhaoben; Wu, Chengying; Chen, Wei; Chen, Qing‐Yun
- Abstract
Main observation and conclusion: The deoxyfluorination of carboxylic, sulfonic, phosphinic acids and phosphine oxides is a fundamentally important approach to access acyl fluorides, sulfonyl fluorides and phosphoric fluorides, thus the development of inexpensive, stable, easy‐to‐handle, versatile, and efficient deoxyfluorination reagents is highly desired. Herein, we report the use of potassium salts of perfluoroalkyl ether carboxylic acids (PFECA) featuring CF2O units as deoxyfluorination reagents, which are generated mainly as by‐products in the manufacture of hexafluoropropene oxide (HFPO). The synthesis of acyl fluorides, sulfonyl fluorides and phosphoric fluorides can be realized via carbonic difluoride (COF2) generated in situ from thermal degradation of the PFECA salt.
- Subjects
PHOSPHINIC acid; PHOSPHINE oxides; CARBOXYLIC acids; PERFLUOROOCTANOIC acid; ETHERS; POTASSIUM salts; FLUORIDES; SULFONYL compounds
- Publication
Chinese Journal of Chemistry, 2021, Vol 39, Issue 5, p1225
- ISSN
1001-604X
- Publication type
Article
- DOI
10.1002/cjoc.202000662