NaI‐Catalyzed Oxidative Amination of Aromatic Sodium Sulfinates: Synergetic Effect of Ethylene Dibromide and Air as Oxidants.

Fu, Ying; Li, Quan‐Zhou; Xu, Qin‐Shan; Hügel, Helmut; Li, Ming‐Peng; Du, Zhengyin

A novel NaI‐catalyzed oxidative amination of sodium sulfinates, employing both ethylene dibromide (EDB) and air as the oxidants, is described. EDB was first demonstrated to be a promising mild organic oxidant that in air, converted NaI into molecular iodine to promote the cross‐coupling reactions of aromatic sodium sulfinates with amines to produce arylsulfonamides. Mechanistic studies indicated that a radical pathway might be involved in the reaction process. A novel NaI‐catalyzed oxidative amination of sodium sulfinates, employing both ethylene dibromide (EDB) and air as the oxidants, is described.

AMINATION; ETHYLENE dibromide; OXIDIZING agents; SULFINATES; AROMATIC compounds; REACTION mechanisms (Chemistry)

European Journal of Organic Chemistry, 2018, Vol 2018, Issue 48, p6966

1434-193X

Academic Journal

10.1002/ejoc.201801386