Phosphinomethanides and Group 15 element halides: Redox reactions, rearrangements and novel heterocycles
作者:H.H. Karsch、E. Witt
DOI:10.1016/s0022-328x(96)06578-3
日期:1997.2
The reactions of ECl3 (E = P, As, Sb, Bi), RPCl2 (R = Me, Ph, tBu, Cy2N) and Ph2PCl, respectively, with ambident lithium phosphinomethanides are described. The reaction with LiCH2PMe2, 1, by EC bond formation, leads to the substitution products E(CH2PMe2)3, 2a–d, (E = P, As, Sb, Bi) and R—P(CH2PMe2)2 (R = Me, Ph, tBu, Cy2N) 5a–d. In contrast, LiC(PMe2)(SiMe3)2 · 0.5TMEDA, 6, gives substitution products
描述了ECl 3(E = P,As,Sb,Bi),RPCl 2(R = Me,Ph,t Bu,Cy 2 N)和Ph 2 PCl与环境性膦酰甲基甲烷锂的反应。用的LiCH反应2 PME 2,1由EC键形成,通向取代产物E(CH,2 PME 2)3,图2a-d ,(E = P,砷,锑,铋)和R-P(CH 2 PMe 2)2(R = Me,Ph,t Bu,Cy 2 N)5a–d。相比之下,LiC(PMe 2)(SiMe 3)2 ·0.5TMEDA,6,通过EP键的形成,得到ECl 3(E = P,As,Sb)的取代产物。因此,第一元件三(P-叶立德)衍生物E(PME 2 C(森达3)2)3,7A-C ,获得。图7b的特征在于X射线结构确定。在这些反应中,氧化偶合PP,得到[(ME 3 Si)的2 CPME 2 ] 2,8,还可以观察到,与只在BiCl的反应3与6。RPCl的反应2(R = Me中,pH值,吨卜中,Cy