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在三乙胺存在下,多种硫代磷酰二氯与邻氨基酚反应,经磷硫双键断开并以σ键与磷相连的基团被置换下来等过程,最终生成双环五配位磷化物3.苯基硫代环膦酸酯5,9与邻氨基酚反应分别生成螺环五配位磷化物6和8.苯氧基或烷氧基硫代环磷酸酯11,13与邻氨基酚反应,除磷硫键断裂以及苯氧基、烷氧基被置换外,还发生邻亚氨基苯氧基与邻苯二氧基进行相互交换反应.这些反应机理依据磷原子的电负性,氢质子的活泼性以及P—X键的稳定性进行了讨论.
In the presence of triethylamine, a variety of thiophosphoryl dichloride and o-aminophenol reaction, the phosphorus-sulfur double bond is broken and sigma bond with the phosphorus group is connected to the replacement process, the final formation of bicyclic pentacoordination Phosphide 3. The phenylthiocyclic phosphonate 5,9 reacted with o-aminophenol to form the spiropenta-coordinated phosphides 6 and 8. The phenoxy or alkoxythiophosphates 11, Aminophenol reaction, in addition to sulfur and sulfur bond breaking and phenoxy, alkoxy is replaced, but also occurs o-aminophenoxy and o-phenylenedioxy exchange reaction of these reaction mechanism based on the electronegativity of phosphorus atoms , The activity of hydrogen protons and the stability of P-X bond were discussed.