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Production of highly pure meta,meta-coupled bis(4-alkylphenol) derivatives and uses thereof

A technology of derivatives and purity, applied in the field of production of high-purity m-, m-coupled bis(4-alkylphenol) derivatives and their uses, can solve problems such as fate without specifying

Inactive Publication Date: 2019-10-08
KATHOLIEKE UNIV LEUVEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ortho, meta'-isomers were detected, their fate during precipitation was not specified

Method used

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  • Production of highly pure meta,meta-coupled bis(4-alkylphenol) derivatives and uses thereof
  • Production of highly pure meta,meta-coupled bis(4-alkylphenol) derivatives and uses thereof
  • Production of highly pure meta,meta-coupled bis(4-alkylphenol) derivatives and uses thereof

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Embodiment Construction

[0072] The present invention can be understood more readily by reference to the following detailed description of the disclosure including the Examples.

[0073] Before the compounds, compositions, articles, systems, devices and / or methods of the present invention are disclosed and described, it is to be understood that they are not limited to particular synthetic methods, or to particular reagents unless otherwise indicated. , so of course they can vary. It is also to be understood that terminology used herein is for the purpose of describing particular aspects only and is not limiting. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present disclosure, exemplary methods and materials are now described.

[0074] Furthermore, it should be understood that in no way is any method described herein intended to be construed as requiring the performance of its steps in a particular order, unless expres...

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Abstract

In general the present invention concerns a method for production of highly pure m,m'- coupled bis(4-alkylphenol) derivatives from particular lignin-derived 4-alkylphenol derivatives. More specifically this invention relates to a process for the selective purification of m,m'- coupled bis(4-alkylphenol) derivatives by selective crystallization in the presence of residual substrate and isomeric and / or oligomeric by-products / impurities. This new class of bis(4-alkylphenol)s are valuable precursors for renewable thermoplastics, (high temperature) resins / thermosets, bio-derived C15-C19 fuel additives, antioxidants, UV-stabilizers, plasticizers, soluble n-type perylene copolymers and / or positive working photoresists.

Description

[0001] field of invention [0002] In general, the present invention relates to a process for the preparation of high-purity m,m-coupled bis(4-alkylphenol) derivatives directly from starting reaction product mixtures in which 4-alkyl-2-alkoxy Phenol (e.g. 2-methoxy-4-n-propylphenol) and / or 4-alkyl-2,6-dialkoxyphenol (e.g. 2,6-dimethoxy-4-n-propylphenol ) condensation reaction. More specifically, the present invention relates to the selective crystallization of high purity meta, meta'-coupled bis(4-alkylguaiacs) in the presence of residual substrate and isomers and / or oligomeric by-products / impurities phenol) and / or bis(4-alkyleugenol) derivatives. These high-purity bis(4-alkylphenol)( figure 1 ) are valuable precursors for renewable thermoplastics and (high temperature) thermosetting resins. Background technique [0003] Lignocellulosic biomass is a highly abundant and potentially low-cost renewable feedstock for the production of heat, power, fuels, chemicals and material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C37/20C07C37/84C07C41/30C07C41/40C07C39/16C07C43/23
CPCC07C37/20C07C37/84C07C41/30C07C41/40C07C39/16C07C43/23C08L67/03
Inventor B·瑟尔斯S-F·克罗卫英
Owner KATHOLIEKE UNIV LEUVEN