The Pd-catalyzed Michaelis–Arbuzov rearrangement of triaryl phosphites to produce the corresponding arylphosphonates in good to excellent yields is disclosed. In comparison to the traditional methods, this new method is highly atom efficient and is general, as it can be readily extended to aryl phosphonites and phosphinites. A gram-scale reaction of (PhO)₃P to PhP(O)(OPh)₂ with low loading of the catalyst was also demonstrated to show its potentially practical usefulness. A plausible mechanism is proposed.

中文翻译：

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通过Michaelis–Arbuzov重排由（ArO）₃ P从钯催化无溶剂制备芳基膦酸酯ArP（O）（OAr）₂

本发明公开了钯催化的三芳基亚磷酸酯的Michaelis-Arbuzov重排以产生相应的芳基膦酸酯，产率高至优异。与传统方法相比，此新方法具有很高的原子效率，并且很通用，因为它可以轻松扩展到芳基亚膦酸酯和次膦酸酯。还证实了在低催化剂用量的情况下（PhO）₃ P对PhP（O）（OPh）₂的克级反应，显示了其潜在的实用价值。提出了一种合理的机制。