Synthesis of N -Sulfinyl Sulfoximines from 5-(Sulfoximido)dibenzothiophenium Triflates and Sodium Sulfinates.

A transition-metal-free and efficient S-O/S-N bond interconversion reaction has been developed. The protocol facilitates an efficient synthesis of N -sulfinyl sulfoximines by reacting sulfoximido-substituted sulfonium salts with a wide range of sodium sulfinates, featuring broad substrate scope, including a plethora of heterocyclic and fluoroalkyl substrates, high functional group tolerance, and mild conditions.