A tunable and practical transformation of structurally diverse sulfonyl hydrazides into thiosulfonates in the presence of Rongalite (NaHSO2·CH2O) was developed. Transition-metal-free conditions, operational simplicity, and readily available reagents are the striking features of this protocol. It is the first example for the synthesis of thiosulfonates using sulfonyl hydrazides with the assistance of reductant. Additionally, the mechanistic studies revealed that this transformation probably undergoes via a reducing–coupling pathway.

中文翻译：

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Rongalite的双重作用：使用磺酰肼构建硫代磺酸盐的还原偶联反应

开发了在 Rongalite (NaHSO2·CH2O) 存在下，结构多样的磺酰肼向硫代磺酸盐的可调且实用的转化。无过渡金属条件、操作简单和容易获得的试剂是该协议的显着特点。它是第一个在还原剂的帮助下使用磺酰肼合成硫代磺酸盐的例子。此外，机理研究表明，这种转变可能是通过还原-偶联途径进行的。