Phosphonium-borate nitterions, anionic phosphines, and dianionic phosphonium-dialkoxides via tetrahydrofuran ring-opening reactions

Welch GC; Masuda JD; Stephan DW

Inorganic Chemistry, Vol.45, No.2, 478-480, 2006

Welch GC, Masuda JD, Stephan DW

Sterically demanding secondary phosphines and phosphides react with (THF)B(C6F5)(3) (THF = tetrahydrofuran) to give the THF ring-opened compounds [R2PHC4H8OB(C6F5)(3)] and [MeS2PC4H8OB(C6F5)(3)Li(THF)(2)] (Mes = C(6)H(2)AMe-2,4,6). These reactions also occur consecutively to give the double THF ring-opened compounds [MeS2P(C4H8OB(C6F5)(3))(2)][Li(THF)(4)] and [t-Bu2P(C4H8OB(C6F5)(3))(2-)Li].