p -Nitrobenzonitrile与烷基氢烷基膦容易氧化物反应(I; R 1 =我,R 2 =甲基,乙基,镨,镨我,卜吨CH 2,或卜吨CHME)和(I; R 1 =的Et,卜t或Ph; R 2 = Et),磷酸二乙基氢和二乙基次膦酸氢生成相应的1:1加合物,即烷基α-羟基亚氨基-对硝基苄基烷基膦酸酯(II; R 1 = Me; R 2 = Me,乙基,丙基,镨我,卜吨CH 2,或卜吨CHME)和(II; R 1=的Et,卜吨或pH; [R 2 = ET),二乙基α羟基亚p硝基苄酯(II; R 1 =环氧乙烷,R 2 = ET),和α羟基亚p分别硝基苄二乙基次膦酸(III)。除了在酸性条件下稳定的最后一种情况外,加合物在稀有的二恶烷水溶液中在pH 2-3·5的条件下,以非常快速的,通过手性辅助的方式发生了P–O裂变(动力学研究表明,其快约10 7,比在相似条件下经历烷基-氧裂变的简单
A New Microscale Method for the Conversion of Phosphorus Oxyacids to Their Fluorinated Analogues, Using Cyanuric Fluoride in Solution and on Solid Support
作者:Rikard Wärme、Lars Juhlin
DOI:10.1080/10426501003671445
日期:2010.11.23
Cyanuric fluoride, in solution or loaded onto a Wang resin, is successfully used as a fluorinating agent for phosphorus oxy acids. The reaction is very efficient with high yields and easy workup procedures, thereby in general generating products in quantitative yields. The cyanuric fluoride is proven suitable for micromolar scale synthesis of analytical standards, particularly in its resin-bound form
溶液中或负载在 Wang 树脂上的氰尿酰氟已成功用作含氧磷酸的氟化剂。该反应非常有效,产率高,后处理程序简单,因此通常以定量产率产生产物。氰尿酰氟已被证明适用于分析标准品的微摩尔级合成,特别是其树脂结合形式。
SYNTHESIS OF ALKYL HYDROGEN ALKYLPHOSPHONATES
作者:André Pienaar、Cornelis M. Erasmus、Mauritz Wentzel、Eugene H. Cowley
DOI:10.1080/10426509908037007
日期:1999.5.1
The synthesis of alkyl hydrogen alkylphosphonates 1 was studied. Different synthetic routes were investigated and it was found that alkylphosphonic anhydrides can serve as ideal precursors for the synthesis of those half-acids, It was also shown that isopropyl phosphonic dichloride reacts in a unique fashion to produce alkyl hydrogen isopropylphosphonates in moderate yields.
Evdakov,V.P.; Alipova,E.I., Journal of general chemistry of the USSR, 1965, vol. 35, p. 1588 - 1590