REACTION OF SULFENAMIDES WITH DI-ALKYL AND TRIALKYL PHOSPHITES.AN EFFICIENT SYNTHESIS OF PHOSPHORAMIDATES BY UNUSUAL SUBSTITUTION AT S–N BOND IN (2-BENZOTHIAZOLYL)SULFENAMIDES
作者:Sigeru Torii、Noboru Sayo、Hideo Tanaka
DOI:10.1246/cl.1980.695
日期:1980.6.5
Regioselective attack of the trivalent phosphorus atom of dialkyl and trialkyl phosphites on either nitrogen or sulfur atom of sulfenamides has been found. The reaction of phenylsulfenamides with dialkyl phosphites yielded phosphorothiolates, whereas the treatment of (2-benzothiazolyl)sulfenamides with dialkyl and trialkyl phosphites gave phosphoramidates in excellent yields.
sulfur–phosphorus coupling reaction of disulfides and dialkyl trimethylsilyl phosphite (DTSP) was carried out under solvent‐freereaction conditions in moderate to excellent yields with good functional group compatibility. The reaction conditions represent an advance over established methods not only in omitting the need for expensive catalysts or solvents, but also in shortening the reaction time significantly