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A kind of furfural oxidative esterification method of methyl furoate

A technology of oxidative esterification of methyl furoate, applied in the direction of organic chemistry, etc., can solve problems such as non-recyclable use, environmental pollution, and increased costs

Active Publication Date: 2021-08-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although K 2 CO 3 and CH 3 ONa homogeneous base can efficiently convert furfural into methyl furoate. However, these added homogeneous bases are difficult to separate and cannot be recycled. The follow-up process is complex and requires the introduction of acid to neutralize the system, resulting in unnecessary environmental pollution. and increased cost

Method used

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  • A kind of furfural oxidative esterification method of methyl furoate

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Experimental program
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Embodiment 1

[0012] Add CoCuNC / MgO-600 (Co 3.7wt%, Cu 1.5wt%, N 1%, C 12%) catalyst, 0.5mmol furfural, and 5mL methanol into a stainless steel autoclave with polytetrafluoroethylene lining inside. The temperature was raised to a reaction temperature of 60° C. using an automatic temperature controller, and 0.5 MPa of oxygen was added to react for 5 hours. During the reaction, the pressure was kept constant. The reaction products were analyzed by GC, and the reaction results are shown in Table 1.

Embodiment 2

[0014] FeNiNC / LDHs-700 (Fe 2.6wt%, Ni 2wt%, N 3%, C 15%) catalyst, 0.5 mmol furfural, and 5 mL methanol were added to a stainless steel autoclave with a polytetrafluoroethylene lining inside. The temperature was raised to a reaction temperature of 80° C. using an automatic temperature controller, and 0.6 MPa oxygen was added to react for 7 hours, keeping the pressure constant during the reaction. The reaction products were analyzed by GC, and the reaction results are shown in Table 1.

Embodiment 3

[0016] CoZnNC / Mg(OH) 2 -700 (Co 5wt%, Zn 1.5wt%, N 0.5%, C 10%) catalyst, 0.5mmol furfural, and 5mL methanol were added to a stainless steel autoclave with a polytetrafluoroethylene lining inside. The temperature was raised to a reaction temperature of 70° C. using an automatic temperature controller, and 0.3 MPa oxygen was added to react for 1 hour. During the reaction, the pressure was kept constant. The reaction products were analyzed by GC, and the reaction results are shown in Table 1.

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Abstract

A method for preparing methyl furoate through catalytic oxidative esterification of furfural. This method uses molecular oxygen or air as the oxygen source, uses a water-resistant carbon layer to protect a cheap metal catalyst, and achieves efficient catalytic oxidation and esterification of furfural to synthesize methyl furoate. When the furfural conversion rate is 98%, the selectivity of the product methyl furoate can reach 99%. The method is simple to operate, has mild conditions, and the catalyst has anti-loss properties in the presence of by-product water.

Description

technical field [0001] The invention relates to the field of chemistry and chemical engineering, in particular to a method for preparing methyl furoate through oxidative esterification of furfural. Background technique [0002] Methyl furoate is one of the important fine chemical products from biomass conversion, which has attracted widespread attention in the field of biomass conversion. The chemical name of methyl furoate is methyl 2-furancarboxylate, also known as methyl pyromucate. It is an extremely important new type of synthetic fragrance, widely used in food flavor, tobacco flavor, cosmetic flavor and other industries. At the same time, it is an important chemical raw material and intermediate, which can be used as a gasoline antiknock agent to improve gasoline quality, and also has antitumor activity. Therefore, the development of a simple, efficient and low-cost synthetic method of methyl furoate has important application value and sustainable development signific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D307/68
CPCC07D307/68
Inventor 马红霍娜徐杰高进孙志强苗虹王文波
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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