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REVIEW ON THE CHEMISTRY OF SULFONOHYDRAZIDES AND SULFONOAZIDES

Sulfonohydrazides recently have achieved considerable importance as organic reagents. They can, for instance, be used in the synthesis of olefins, aldehydes, and diazo compounds, the characterization of sugars; dechlorination of certain chlorinated heterocycles; and the conversion of a keto into a methylene group. By heating, sulfonoazides are transformed into sulfonylnitrenes. These are very reactive chemical intermediates; they will, for example, insert into carbon-hydrogen bonds. Accordingly, sulfonoazides are chiefly important as precursors of sulfonylnitrenes. Sulfonohydrazides and sulfonoazides are used industrially as “blowing” and cross-linking agents in the manufacture of foam rubbers and plastics.