Aminodifluorosulfinium Salts: Selective Fluorination Reagents with Enhanced Thermal Stability and Ease of Handling†,‡

A L'Heureux, F Beaulieu, C Bennett…

Index: Beaulieu, Francis; Beauregard, Louis-Philippe; Courchesne, Gabriel; Couturier, Michel; Laflamme, Francois; L'Heureux, Alexandre Organic Letters, 2009 , vol. 11, # 21 p. 5050 - 5053

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Citation Number: 124

Abstract

Diethylaminodifluorosulfinium tetrafluoroborate (XtalFluor-E) and morpholinodifluorosulfinium tetrafluoroborate (XtalFluor-M) are crystalline fluorinating agents that are more easily handled and significantly more stable than Deoxo-Fluor, DAST, and their analogues. These reagents can be prepared in a safer and more cost-efficient manner by avoiding the laborious and hazardous distillation of dialkylaminosulfur ...