Mild Synthesis of Organophosphorus Compounds: Reaction of Phosphorus-Containing Carbenoids with Organoboranes
作者:Monika I. Antczak、Jean-Luc Montchamp
DOI:10.1021/ol800085u
日期:2008.3.1
Organoboranes react with phosphorus-containing carbenoids to produce a variety of functionalized organophosphorus compounds under mild conditions. In some cases, selective migration of one group attached to boron can be observed. Phosphonite-borane complexes are introduced as novel synthons for the synthesis of phosphinic esters.
Organische Phosphorverbindungen XXXVI. Darstellung und Eigenschaften von Bis-(dialkoxyphosphonyl-methyl)-, Bis-(alkoxyphosphinyl-methyl)-und Bis-(oxophosphoranyl-methyl)-phosphinsäureestern sowie der entsprechenden Säuren [1]
作者:Ludwig Maier
DOI:10.1002/hlca.19690520335
日期:——
High yields of bis-(dialkoxyphosphonyl-methyl)- phosphinic esters, (RO)2 (O)-PCH2P(O)OR, bis-(aloxyphosphinyl-methyl)-phosphinic esters, [R(RO)(O)PCH2]2P(O)OR, are obtained by heating bis-chloromethyl-phosphinic esters, (CICH2)2P(O)OR, with alkylphoshites, phosphonites and phosphinites, repectively, at 170 to 180°C for several hours. Hydrolysis of these esters in achieved by refluxing with conc. HCl
Conformational stability of (chloromethyl) phosphonothioic difluoride from temperature-dependent infrared spectra of rare gas solutions and r0 structural parameters
作者:J.R Durig、J Xiao
DOI:10.1016/s0022-2860(00)00966-2
日期:2001.5
Abstract Variable temperature (−55 to −150°C) studies of the infraredspectra (3500–400 cm −1 ) of (chloromethyl)phosphonothioic difluoride (ClCH 2 P(S)F 2 ) dissolved in liquid xenon and krypton have been recorded. From these data, the enthalpy difference has been determined to be 244±16 cm −1 (2.92±0.19 kJ mol −1 ) with the trans conformer being the more stable rotamer. Complete vibrational assignments
摘要 已记录了溶解在液态氙和氪中的(氯甲基)硫代膦酰二氟化物(ClCH 2 P(S)F 2 )的红外光谱(3500–400 cm -1 )的变温(-55 至 -150°C)研究. 根据这些数据,已确定焓差为244±16 cm -1 (2.92±0.19 kJ mol -1 ),其中反式构象异构体是更稳定的旋转异构体。两种构象异构体都给出了完整的振动分配,这与使用两个比例因子从头算 MP2/6-31G(d) 计算中获得的预测波数一致。从 RHF/6-31G(d) 和/或 MP2/6-31G(d) ab initio 计算中获得了优化的几何形状、构象稳定性、谐波力场、红外强度、拉曼活动和去极化率。还进行了混合密度函数理论 (DFT) 计算,以通过 B3LYP/6-31G(d) 方法获得结构参数和构象稳定性。在适当的时候将这些量与相应的实验量以及一些类似分子的一些相应结果进行比较。r 0 结构参数是从先前报道的微波旋转常数和从头计算