3782-65-8Relevant articles and documents
Visible-Light-Mediated Synthesis of Sulfonyl Fluorides from Arylazo Sulfones
Bui, Tien Tan,Tran, Van Hieu,Kim, Hee-Kwon
, p. 341 - 347 (2021/10/14)
Sulfonyl fluorides are useful motifs for a wide range of applications in organic synthesis including sulfur (VI) fluoride exchange-based “click chemistry.” Herein, a visible-light-mediated synthesis of sulfonyl fluorides from arylazo sulfones is described. In the present study, K2S2O5 and N-fluorobenzenesulfonimide (NFSI) were used as the sulfonyl source and fluorinating agent, respectively, for visible-light-mediated fluorosulfonylation of arylazo sulfones to prepare various sulfonyl fluorides in 60–85% yield. This protocol is a synthetic approach to provide useful sulfonyl fluoride structures at room temperature. (Figure presented.).
Tetraphenylphosphonium bromide-catalyzed 'Halex' fluorination of chloroaryl sulfonyl chlorides
Suzuki, Hiroshi,Kageyama, Hiroyuki,Yoshida, Yasuo,Kimura, Yoshikazu
, p. 335 - 337 (2007/10/02)
Halogen-exchange of chloroaryl sulfonylchloride derivatives with spray-dried potassium fluoride was found to proceed efficiently by employing tetraphenylphosphonium bromide as a catalyst.Subsequent desulfonylation of the fluoroaryl sulfonyl derivatives readily afforded fluoroaromatics under acidic condition.