The reactivity of phosphate esters. Reactions of diesters with nucleophiles
作者:A. J. Kirby、M. Younas
DOI:10.1039/j29700001165
日期:——
The reactions of a wide range of nucleophiles with a series of aryl methyl phosphate ester anions involve concerted nucleophilic displacement at phosphorus. The attack of neutral nucleophiles is slower than the corresponding reactions of both triesters and monoester monoanions. SN2(P) reactions involving the attack of anions on phosphate diester anions are observed, and are shown to be retarded by
多种亲核试剂与一系列芳基甲基磷酸酯阴离子的反应涉及在磷处的协同亲核取代。中性亲核试剂的进攻要比三酯和单酯单阴离子的相应反应慢。观察到涉及阴离子对磷酸二酯阴离子的攻击的S N 2(P)反应,并且显示出受阻约两倍。速率为100倍,这归因于不良的静电作用。对亲核试剂和离去基团的敏感性都很高,并且对反应性有一定的依赖性:它们显然也受到静电作用的影响。