Catalytic synthesis method for methyl methoxyacetate

A technology for the synthesis of methyl methoxyacetate and its synthesis method, which is applied in the field of catalytic synthesis of methyl methoxyacetate and the synthesis of ester compounds, which can solve the problem that the scope of application of substrates is not wide enough, and it is difficult to meet the requirements of synthesis of a large number of chemical products and functional materials. Demand and other issues, to achieve the effect of good industrial production potential and broad market prospects

Active Publication Date: 2015-11-11
SHANDONG TONGCHENG MEDICINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] As mentioned above, although a variety of methods for synthesizing methyl methoxyacetate are disclosed in the prior art, these existing methods are still difficult to m

Method used

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  • Catalytic synthesis method for methyl methoxyacetate
  • Catalytic synthesis method for methyl methoxyacetate
  • Catalytic synthesis method for methyl methoxyacetate

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0034] Preparation Example 1 of Solid Carrier Supported Catalyst: Preparation of Catalyst G1

[0035] S1: calcining carbon nanotubes at 800° C. for 15 minutes, and cooling naturally to obtain calcined carbon nanotubes;

[0036] S2: add the calcined carbon nanotubes and the active agent N,N,N',N'-tetramethyl-N,N'-disulfonic acid propylpropylenediamine bisulfate into an appropriate amount of organic solvent polyethylene glycol In alcohol (PEG-200), fully stirred at 70°C for 40 minutes, then stood still for 10 hours, filtered, and the filtered solid was fully washed with deionized water and dried completely to obtain the solid supported catalyst, named as G1;

[0037] Wherein, the mass ratio of the calcined carbon nanotubes to the active agent N,N,N',N'-tetramethyl-N,N'-disulfonic acid propylpropylenediamine bisulfate is 1:0.5.

preparation example 2

[0038] Preparation Example 2 of Solid Carrier Supported Catalyst: Preparation of Catalyst G2

[0039] S1: calcining carbon nanotubes at 850° C. for 13 minutes, and cooling naturally to obtain calcined carbon nanotubes;

[0040] S2: add the calcined carbon nanotubes and the active agent N,N,N',N'-tetramethyl-N,N'-disulfonic acid propylpropylenediamine bisulfate into an appropriate amount of organic solvent polyethylene glycol In alcohol (PEG-200), fully stirred at 75°C for 30 minutes, then stood still for 15 hours, filtered, and the filtered solid was fully washed with deionized water and dried completely to obtain the solid supported catalyst, named as G2;

[0041] Wherein, the mass ratio of the calcined carbon nanotubes to the active agent N,N,N',N'-tetramethyl-N,N'-disulfonic acid propylpropylenediamine bisulfate is 1:0.7.

preparation example 3

[0042] Preparation Example 3 of Solid Carrier Supported Catalyst: Preparation of Catalyst G3

[0043] S1: calcining carbon nanotubes at 900° C. for 10 minutes, and cooling naturally to obtain calcined carbon nanotubes;

[0044] S2: add the calcined carbon nanotubes and the active agent N,N,N',N'-tetramethyl-N,N'-disulfonic acid propylpropylenediamine bisulfate into an appropriate amount of organic solvent polyethylene glycol In alcohol (PEG-200), fully stirred at 80°C for 20 minutes, then stood still for 20 hours, filtered, and the filtered solid was fully washed with deionized water and dried completely to obtain the solid supported catalyst, named as G3;

[0045] Wherein, the mass ratio of the calcined carbon nanotubes to the active agent N,N,N',N'-tetramethyl-N,N'-disulfonic acid propylpropylenediamine bisulfate is 1:0.9.

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Abstract

The invention relates to a catalytic synthesis method for methyl methoxyacetate with the formula (I) shown in the specification. The catalytic synthesis method comprises the steps that a compound with the formula (II) shown in the specification reacts with methyl alcohol under normal pressure in the presence of a solid carrier load catalyst and a bi-component accelerant, and therefore methyl methoxyacetate is obtained. According to the catalytic synthesis method, by means of the unique catalyst and accelerant, and particular load component selected and specific preparation method used in the catalyst preparing process, a target product can be obtained with the high yield, and the research value and application potential are high.

Description

technical field [0001] The invention relates to a method for synthesizing ester compounds, more specifically to a method for catalytically synthesizing methyl methoxyacetate, and belongs to the field of synthesizing chemical intermediates. Background technique [0002] Methyl methoxyacetate is an important chemical intermediate, which can be widely used in the dynamic resolution of chiral amine compounds, the synthesis of vitamin B6 and sulfa-5-pyrimidine and other compounds; in addition, it can also be used It can be used as a catalyst for polymerization reactions, and can be used to synthesize common chemical raw materials such as ethylene glycol. [0003] Just because of such an important role and application field of methyl methoxyacetate, it is very necessary to study new and efficient synthetic methods of methyl methoxyacetate in the field of organic chemistry. [0004] In recent years, many scientific workers have carried out extensive and in-depth research on the sy...

Claims

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Application Information

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IPC IPC(8): C07C67/31C07C69/708B01J31/02
CPCB01J31/0271B01J2231/4288C07C67/31C07C69/708
Inventor 苏光明张瑜
Owner SHANDONG TONGCHENG MEDICINE TECH CO LTD
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