A kind of synthetic method of two (2-methoxyphenyl) phosphine oxides

A technology of methoxyphenyl and phosphine oxides, which is applied in the field of synthesis of bisphosphine oxides, can solve problems such as low yield, long reaction route, and uncontrollable impurities, and achieve high conversion rate, excellent product quality, and reaction simple effect
CN110590837BActive Publication Date: 2022-03-29CHAMBROAD CHEM IND RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHAMBROAD CHEM IND RES INST CO LTD
Publication Date
2022-03-29

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Abstract

The invention belongs to the technical field of fine chemicals, and in particular relates to a synthetic method of bis(2-methoxyphenyl)phosphine oxide, which comprises the following steps: a) reacting anisole and triethyl phosphate in a solvent , to obtain bis(2-methoxyphenyl) ethyl phosphonate; b) the bis(2-methoxyphenyl) ethyl phosphonate is hydrogenated and reduced in a solvent to obtain bis(2-methoxy phenyl)phosphine oxide. The present invention takes anisole as the starting material, first reacts with triethyl phosphate to obtain bis(2-methoxyphenyl) ethyl phosphonate, and then synthesizes bis(2-methoxyphenyl) through hydrogenation reduction ) phosphine oxide, the method has simple reaction, high conversion rate, excellent product quality, and the content of bis(2-methoxyphenyl) phosphine oxide produced is more than 98%, which satisfies the technology of producing relevant polyketone ligands in the market Requirements, and the operation steps are simple, the required equipment is simple, and the energy consumption is low.
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Description

technical field

[0001] The invention belongs to the technical field of fine chemicals, in particular to a method for synthesizing bis(2-methoxyphenyl)phosphine oxide. Background technique

[0002] Polyketone (POK) is a new type of green polymer material synthesized from carbon monoxide and olefins (ethylene, propylene, styrene). Polyketone has photodegradation and biodegradation characteristics, and can be further chemically modified. Its excellent and wide performance makes it It becomes a "natural" thermoplastic engineering plastic. In the polyketone preparation process, the polymerization catalyst usually consists of a Pd(II) / bisphosphine ligand / acid system, and the bisphosphine ligand with higher catalytic activity such as 1,3-bis[bis(2-methoxy phenyl)phosphino]propane, ((2,2-dimethyl-1,3-dioxane-5,5-diyl)bis(methylene))bis(bis(2-methoxy phenyl)phosphine), 3,3-bis-[bis-(2-methoxyphenyl)phosphinemethyl]-1,5-dioxa-spiro[5,5]undecane, etc., and Bis(2-methoxyphenyl)phosph...

Claims

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