Catalyst-free radical fluorination of sulfonyl hydrazides in water?

Green Chemistry Pub Date: 2015-12-07 DOI: 10.1039/C5GC02755A

Abstract

The first catalyst-free fluorination of sulfonyl hydrazides for the synthesis of sulfonyl fluorides has been developed via a free-radical pathway. This protocol presents a broad substrate scope and does not require any metal catalyst and additive. All these transformations proceed smoothly in water under mild conditions, which enables a straightforward, practical and environmentally benign fluorination for S–F bond formation.

Graphical abstract: Catalyst-free radical fluorination of sulfonyl hydrazides in water
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