作者:Alan H. Cowley、Jan E. Kilduff、Nicholas C. Norman、Marek Pakulski
DOI:10.1039/dt9860001801
日期:——
[Au(PEt3)][PF6]. The reaction of (1) with excess of sulphur in the presence of 1,5-diazabicyclo[5.4.0] undec-5-ene results in PP bond cleavage and formation of a cyclic dithiophosphinic acid. The diphosphene, (1), reacts with LiMe to afford the anion [RP–P(Me)R]–. Quenching with MeOH affords the diphosphine R(H)P–P(Me)R, whilst treatment of [RP–P(Me)R]– with OH– causes P–P bond cleavage and formation
P 2 [C(SiMe 3)3 ] 2(2)与化学计量的盐酸反应生成(Me 3 Si)3 CP(H)–P(Cl)C(SiMe 3)3,同时过量该试剂引起P P裂解并导致PH(Cl)[C(SiMe 3)3 ]的形成。用RP对应的反应PR(R = 2,4,6卜吨3 c ^ 6 ħ 2),(1),结果在PH(Cl)的R,即使在使用1个当量的HCl。用HBF 4对化合物(2)进行质子化·Et 2 O在–78°C时生成the盐[PH 3 C(SiMe 3)3 }] [BF 4 ]。的(质子化1与HBF)4 ·的Et 2 O为更加复杂和引线最终至P P键裂解和阳离子磷中心的插入到的C-H键的邻-Bu吨基。指示剂[R(Ag)P P(Ag)R] 2+和单阳离子[R(Ag)P PR] +和[RP P(AuPEt 3)R] +是在用(1)用Ag [ SO 3 CF3 ]或[Au(PEt 3)] [PF 6 ]。(