Rongalite as a C1 Source: Sulfonylmethylation of Indoles with Aryl/Alkyl Hydrazides and Sulfinates.

Herein, we present a sulfonylmethylation of indoles with aryl/alkyl hydrazides and sulfinates that provides viable access to sulfone compounds using rongalite as a C1 source. This protocol features readily available chemicals and simple operations, and the products were obtained in moderate to good yields.