Preparation method of 1, 4-bis(4-phenoxy benzoyl) benzene and polyether ketone ketone

A technology of phenoxybenzoyl and phenoxybenzaldehyde, which is applied in the preparation of polyether ketone ketone and 1,4-bisphenyl, can solve the problems of waste of raw materials, increased procedures, and increased costs, and achieves The preparation method is effective, the content of impurities is reduced, and the effect of high product purity
CN113149830APending Publication Date: 2021-07-23SHENZHEN WOTE ADVANCED MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHENZHEN WOTE ADVANCED MATERIALS
Publication Date
2021-07-23

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Abstract

The invention relates to a preparation method of 1, 4-bis(4-phenoxy benzoyl) benzene and a preparation method for preparing polyether ketone ketone from the 1, 4-bis (4-phenoxy benzoyl) benzene. The preparation method of the 1, 4-bis (4-phenoxybenzoyl) benzene comprises the following steps: providing a reactant mixture containing 4-phenoxybenzaldehyde, terephthaloyl chloride and a Lewis acid catalyst in a solvent, and carrying out a Friedel-Crafts acylation reaction to obtain a mixture containing a compound as shown in the following formula (1); and sequentially carrying out an oxidation reaction and a decarboxylation reaction on the mixture containing the compound as shown in the formula (1) to obtain a mixture containing 1, 4-bis (4-phenoxy benzoyl) benzene.
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Description

technical field

[0001] The present invention relates to the technical field of organic synthesis, in particular to a method for preparing 1,4 bis(4-phenoxybenzoyl)benzene, and the 1,4 bis(4-phenoxybenzoyl) Benzene started the preparation method of polyether ketone ketone. Background technique

[0002] 1,4 bis(4-phenoxybenzoyl)benzene is an intermediate used in many organic synthesis, and can also be used as a raw material for the synthesis of polyether ketone ketone (PEKK). In the prior art, 1,4 bis(4-phenoxybenzoyl)benzene is mostly synthesized with excess diphenyl ether and terephthaloyl chloride under the condition of Lewis acid as a catalyst, such as document US4816,556, In document WO95 / 23821 and document CN201880031935.2, when preparing 1,4 bis(4-phenoxybenzoyl)benzene, the molar ratio of diphenyl ether to terephthaloyl chloride exceeds 2.

[0003] However, in the prior art, diphenyl ether and terephthaloyl chloride are used as raw materials to prepare 1,4 bis(4-phen...

Claims

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