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Ether ester compound and application thereof

A technology of ether ester compound and diethyl ether, which is applied in the field of olefin polymerization, can solve the problems of low yield and complex synthesis process, and achieve the effects of high catalytic activity, simple operation, and mild conditions in the preparation process

Active Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The synthesis process of the intermediate compound 1,3-diol involved in the preparation process is relatively complicated and the yield is low

Method used

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  • Ether ester compound and application thereof
  • Ether ester compound and application thereof
  • Ether ester compound and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation of embodiment 1 ether ester compound (1)

[0020] The structural formula of the ether ester compound (1) is as follows:

[0021]

[0022] Ether ester compound (1) structural formula

[0023] The first step: using methanol as a solvent, reflux reaction of epichlorohydrin and methanol under the action of sodium hydroxide for 6 hours to obtain 1,3-dimethoxy-2-propanol. Wherein, on a molar basis, epichlorohydrin: sodium hydroxide = 1:1.05. The amount of methanol used was 0.6 L per mole of epichlorohydrin.

[0024] The second step: using tetrahydrofuran as a solvent, the 1,3-dimethoxy-2-propanol obtained in the first step and ethyl glutaric acid chloride were refluxed for 7 hours under the action of the acid-binding agent triethylamine, The ether ester compound (1) was obtained. Wherein, on a molar basis, 1,3-dimethoxy-2-propanol: ethyl glutaric acid chloride: triethylamine=1:1:1.5. The amount of tetrahydrofuran used was 1.5 L per mole of 1,3-dimethoxy-...

Embodiment 2

[0027] The preparation of embodiment 2 ether ester compound (2)

[0028] According to the method of embodiment 1, make epichlorohydrin and R 1 Lower alcohol R for methyl (Me) 1 OH reacts with the corresponding acid chloride to generate R as shown in formula M 2 Ethyl (Et), n is an ether ester compound (2) of 1, and use 1 H NMR confirmed its structure, see Table 1 for details.

Embodiment 3

[0029] The preparation of embodiment 3 ether ester compound (3)

[0030] According to the method of embodiment 1, make epichlorohydrin and R 1 Lower alcohol R for methyl (Me) 1 OH reacts with the corresponding acid chloride to generate R as shown in formula M 2 Ethyl (Et), n is the ether ester compound (3) of 2, and use 1 H NMR confirmed its structure, see Table 1 for details.

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PUM

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Abstract

The invention provides an ether ester compound as shown in Formula M, wherein R<1> and R<2> are independently C1-6 alkyl respectively, and n is an integer of 1-8. The ether ester compound can be used for olefine polymerization reaction, e.g. used as an internal electron donor of an olefine polymerization catalyst. According to the invention, the ether ester compound can be prepared from cheap and accessible raw materials; and the preparation method is simple and mild in conditions. The ether ester compound catalyst used in propylene polymerization reaction shows high activity, and the obtained polymer has high isotactic index. The Formula M is shown in the specification.

Description

technical field [0001] The invention relates to an ether ester compound and its application, in particular to an ether ester compound used in the field of olefin polymerization and its application. Background technique [0002] The key to the development of polyolefin industry lies in the preparation technology of catalysts for polymerization. In the 1950s, Italian Professor Natta discovered the Ziegler-Natta catalyst (Z-N catalyst) for the production of isotactic polypropylene. At present, the polypropylene catalysts used in industrial production are still dominated by highly efficient Z-N catalyst systems. During catalyst preparation and polymerization, it is necessary to add electron-rich Lewis base compounds, that is, electron donor compounds. The addition of electron donor compounds can improve the activity and stereoselectivity of the catalyst, control the relative molecular weight and distribution of the polymer, optimize the performance of the catalyst, and achieve...

Claims

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Application Information

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IPC IPC(8): C07C69/42C07C69/38C07C69/40C07C67/14C08F10/00C08F4/649C08F110/06
CPCC07C41/03C07C67/14C08F110/06C07C69/42C07C69/38C07C69/40C07C43/13C08F4/6494
Inventor 胡建军刘海涛高明智马吉星蔡晓霞张晓帆陈建华马晶李昌秀李现忠王军
Owner CHINA PETROLEUM & CHEM CORP