中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
对甲苯磺酰胺 | toluene-4-sulfonamide | 70-55-3 | C7H9NO2S | 171.22 |
The gold-catalyzed, seven-membered ring forming, intramolecular hydroamination of alkynic sulfonamides has been investigated. The protocol, with a semihollow-shaped triethynylphosphine as a ligand for gold, allowed the synthesis of a variety of azepine derivatives, which are difficult to access by other methods. Both alkynic sulfoamides with a flexible linear chain and the benzene-fused substrates underwent 7-