Sulfonamide formation from sodium sulfinates and amines or ammonia under metal-free conditions at ambient temperature
2015
Yang, Kai | Ke, Miaolin | Lin, Yuanguang | Song, Qiuling
A novel, practical and highly efficient method for the construction of a variety of sulfonamides mediated by I₂ was demonstrated. The reaction proceeds readily at room temperature using a variety of sodium sulfinates and amines or ammonia in water in a metal-, base-, ligand-, or additive-free protocol. Primary, secondary and tertiary sulfonamides were obtained in good to excellent yields with a broad range of functional group tolerability.
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