A transition-metal-free one-pot direct synthesis of tetrathiophosphates (R1S)2P(S)SR2 from white phosphorus (P4), through intermediate sodium alkyltetrathiophosphates (R1S)2P(S)SNa, is presented. In the presence of NaSH, various disulfides such as diaryl disulfidbges and dialkyl disulfides are easily coupled with P4 to give sodium alkyltetrathiophosphates (R1S)2P(S)SNa in almost quantitative yield
以
白磷(P 4 )为原料,通过中间体烷基四
硫代磷酸钠(R 1 S ) 2 P( S)SNa ,无过渡
金属一锅法直接合成四
硫代磷酸盐(R 1 S) 2 P(S)SR 2呈现。在NaSH存在下,二芳基二
硫醚、二烷基二
硫醚等各种二
硫化物很容易与P 4偶联,生成几乎定量产率的烷基四
硫代磷酸钠(R 1 S) 2 P(S)SNa,与烷基卤化物一锅反应,生成烷基四
硫代磷酸钠(R 1 S) 2 P(S)SNa。生成 (R 1 S) 2 P(S)SR 2。此外,S成功设计了-(2-
氰乙基)-取代四
硫代磷酸酯(R 1 S) 2 P(S)SCH 2 CH 2 CN作为一种四
硫代磷酸化试剂,与二芳基
碘鎓盐发生脱保护-脱烷基化过程。