Reductive coupling of nitro compounds with boronic acid derivatives: an overview.

The purpose of this review is to summarize the current literature on reductive C-N coupling of nitro compounds and boronic acids, with special emphasis on the mechanistic features of the reactions. The metal-catalyzed reactions are discussed first. This is followed by electro-synthesis and organophosphorus-catalyzed reactions.

Hydrazinosulfonylation of aryl electrophiles: a straightforward approach for the synthesis of aryl -aminosulfonamides.

In recent years, the direct hydrazinosulfonylation of aryl electrophiles with SO and hydrazines has emerged as an efficient and versatile method for the synthesis of aryl -aminosulfonamides. This method has the advantages of being operationally simple and requiring only readily available starting materials. This review article is an attempt to survey literature describing the preparation of aryl -aminosulfonamides through the direct hydrazinosulfonylation of aryl electrophiles with SO and hydrazines, with special attention paid to the mechanistic features of the reactions.