A kind of acylphosphine oxide compound and preparation method thereof

The "one-pot boil" method of metal efficient catalyzed metal phosphine oxide compounds are synthesized at room temperature, which solves the problems of high cost, high waste gas and difficult operation in the existing methods, and achieves efficient, environmentally friendly and low-cost industrial production.

CN115819455BActive Publication Date: 2025-03-28SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Application Number
CN202211581095.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-09
Publication Date
2025-03-28
Estimated Expiration
2042-12-09

AI Technical Summary

Technical Problem

The existing synthetic methods of acyl phosphine oxide compounds have problems such as high cost, high waste gas, and difficult to operate, and it is difficult to efficiently synthesize mono-acid and bis-acid phosphine oxide compounds under mild reaction conditions.

Method used

The "one-pot boil" preparation method of efficient metal catalysis is adopted. The acyl phosphine oxide compound is finally obtained by adding indium or a metal catalyst containing indium at room temperature, an ester solvent, a mixture of substituted phosphine chloride and an acid halide, and adding an oxidizing agent after the reaction is completed.

Benefits of technology

This method reduces equipment input and operation costs, reduces solvent loss, avoids solid waste and waste gas generation, has a simple process, is suitable for industrial production, and can efficiently prepare monoacyl and bisacylphosphine oxide compounds.

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Abstract

The present invention relates to the technical field of photocurable functional new material chemicals, and provides a method for efficiently synthesizing acylphosphine oxide photoinitiators. In particular, it relates to an acylphosphine oxide compound whose general structural formula (I) is shown below, and the method uses an appropriate amount of metal indium to catalyze the formation of a chlorophosphine compound substituted with a corresponding acyl compound to construct a carbon-phosphorus bond. The method has good catalytic effect, high yield, simple operation and environmentally friendly characteristics, and has high industrial application value.
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