Diaryl alkylphosphonates and methods for preparing same

Diaryl alkylphosphonates and methods for preparing same

  • CN 105,061,503 A
  • Filed: 02/12/2009
  • Published: 11/18/2015
  • Est. Priority Date: 02/12/2008
  • Status: Active Application
First Claim
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1. prepare a method for the diaryl alkylphosphonates be substituted alternatively, described method comprises:

  • The triaryl phosphites that merging at least one is substituted alternatively and at least one catalyzer are to form triaryl phosphites catalytic mixtures;

    Heat described triaryl phosphites catalytic mixtures to temperature of reaction;

    Added to described by the triaryl phosphites catalytic mixtures heated;

    I () is based on the trialkyl phosphite be substituted alternatively from least one of 0.01% to 3.0% molar excess of the described triaryl phosphites be substituted alternatively;

    Or(ii) based on the alkanol be substituted alternatively from least one of 0.01% to 3.0% molar excess of the described triaryl phosphites be substituted alternatively;

    AndThe reaction of alkanol that the trialkyl phosphite that described triaryl phosphites mixture and described at least one are substituted alternatively or at least one are substituted alternatively is with the diaryl alkylphosphonates be substituted alternatively described in being formed.

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