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Š�-acyloxy group substituted ether compound utilized for preparing olefinic polymerization catalyst

A technology for substituting ethers and acyloxy groups, which is applied in the application field of preparing olefin polymerization catalysts, can solve the problems of undisclosed preparation methods of γ-acyloxy substituted ether compounds, and achieve improved stereospecificity, improved balance activity, and excellent performance effect

Inactive Publication Date: 2003-10-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the γ-acyloxy substituted ether compound and its preparation method are not disclosed in the known literature

Method used

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  • Š�-acyloxy group substituted ether compound utilized for preparing olefinic polymerization catalyst

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example

[0012] 1-methoxymethyl-1-acetoxymethyl-1,3-cyclopentadiene,

[0013] 1-methoxymethyl-1-propionyloxymethyl-1,3-cyclopentadiene,

[0014] 1-methoxymethyl-1-benzoyloxymethyl-1,3-cyclopentadiene,

[0015] 1-methoxymethyl-1-acetoxymethyl-2,3,4,5-tetramethyl-1,3-cyclopentadiene,

[0016] 1-methoxymethyl-1-propionyloxymethyl-2,3,4,5-tetramethyl-1,3-cyclopentadiene,

[0017] 1-methoxymethyl-1-benzoyloxymethyl-2,3,4,5-tetramethyl-1,3-cyclopentadiene,

[0018] 1-methoxymethyl-1-acetoxymethylindene,

[0019] 1-methoxymethyl-1-propionyloxymethylindene,

[0020] 1-methoxymethyl-1-benzoyloxymethylindene,

[0021] 1-methoxymethyl-1-acetoxymethyl-2,3-dimethylindene,

[0022] 1-methoxymethyl-1-propionyloxymethyl-2,3-dimethylindene,

[0023] 1-methoxymethyl-1-benzoyloxymethyl-2,3-dimethylindene,

[0024] 9-methoxymethyl-9-acetoxymethylfluorene,

[0025] 9-methoxymethyl-9-propionyloxymethylfluorene,

[0026] 9-methoxymethyl-9-benzoyloxymethylfluorene,

[0027] 9-methoxymethyl-9-acetox...

Embodiment 29

[0060] The IR characteristic absorption of the product is: 3320.71cm -1 (OH), 1098.00cm -1 (C-O). The preparation of embodiment 29-methoxymethyl-9-acetoxymethylfluorene

[0061] In an anhydrous and nitrogen atmosphere, dissolve 12g of 9-methoxymethyl-9-hydroxymethylfluorene in 100ml of benzene, slowly add 10g of acetic anhydride and 1 drop of concentrated sulfuric acid dropwise under stirring, and stir for 2 hours after the addition.

[0062] Add 2% sodium hydroxide aqueous solution and stir for 10 minutes, and the oily layer is washed with water once more, and then dried with anhydrous calcium chloride. After the solvent was evaporated, it was crystallized with absolute ethanol to finally obtain 12.8 g of the product with a yield of 91%.

[0063] With TMS as internal standard, in CDCl 3 In, the product's 1 The H-NMR spectrum is as follows:

[0064] 7.75ppm bimodal 2H aromatics

[0065] 7.61ppm bimodal 2H aromatics

[0066] 7.41ppm Trimodal 2H aromatics

[00...

Embodiment 3

[0072] The IR characteristic absorption of the product is: 1735.82cm -1 (C=O), 1100.19cm -1 (C-O). Preparation of Example 39-methoxymethyl-9-propionyloxymethylfluorene

[0073] In an anhydrous and nitrogen atmosphere, sequentially add 100ml of dichloromethane, 12g of 9-methoxymethyl-9-hydroxymethylfluorene and 7.6g of triethylamine, and stir to mix completely. Under cooling with ice water, 7 g of propionyl chloride was slowly added dropwise, and stirred for 1 hour after the addition was completed.

[0074] 100ml of ice water was added under stirring, and the oil layer was washed with 5% hydrochloric acid and sodium bicarbonate solution, and then dried with anhydrous calcium chloride. After the solvent was evaporated, it was crystallized with absolute ethanol to finally obtain 13.2 g of the product with a yield of 89%.

[0075] With TMS as internal standard, in CDCl 3 In, the product's 1 The H-NMR spectrum is as follows:

[0076] 7.74ppm bimodal 2H aromatics

[0077]...

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Abstract

A gamma-acyloxy substituted ether compound, its preparing process and its application in preparing the catalyst for polymerizing olefin are disclosed.

Description

technical field [0001] The present invention relates to a new type of acyloxy substituted ether compound, the preparation method of the compound and the application of the compound in the preparation of olefin polymerization catalyst. Background technique [0002] It is known that 1,3-diether compounds are used as electron donors in olefin polymerization catalysts, such as 2-isopropyl-2-isoamyl-1,3-di Methoxypropane, 2,2-diisobutyl-1,3-dimethoxypropane, 9,9-bis(methoxymethyl)fluorene and the like. [0003] CN1141285A discloses the method that relevant diol carries out etherification reaction, and this method is to select the polar solvent such as tetrahydrofuran, under the temperature of 0~100 ℃ and atmospheric pressure, dibasic alcohol and excessive (3: 1-15: 1) Diether compound is synthesized by reacting halogenated hydrocarbon with alkali (sodium hydride or sodium hydroxide) for 10 minutes to 4 hours. The method used in R 2 The molar ratio of X and base to glycol is gr...

Claims

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Application Information

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IPC IPC(8): C07C43/162
Inventor 赵思源谢伦嘉张明森李天益高明智
Owner CHINA PETROLEUM & CHEM CORP
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