1-hydoxyphosphonates in the presence of aliphatic amine undergo two competitive processes: retro Abramov reaction and intramolecular hydroxyphosphonate-phosphate rearrangement. Both reaction rates and their ratio strongly depend on the nature of the substituent on a alpha carbon atom. Kinetic experiments indicate that two reactions proceed via common transition state.
摘要 1-羟基
膦酸酯在脂肪胺存在下经历两个竞争过程:逆阿布拉莫夫反应和分子内羟基
膦酸酯-
磷酸重排。反应速率和它们的比率在很大程度上取决于α碳原子上取代基的性质。动力学实验表明两个反应通过共同的过渡态进行。