Preparation method and application of organic basic catalyst for catalytic synthesis of alpha-cyanoethyl cinnamate

A technology of ethyl cinnamate and ethyl cyanoacetate is applied in the preparation of organic compounds, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., and can solve the problem of long catalysis time and complicated preparation process. , low catalytic efficiency and other problems, to achieve the effect of improving conversion rate, high conversion rate and high utilization rate

Active Publication Date: 2021-07-23
JILIN INST OF CHEM TECH
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Benefits of technology

This patented technology relates to improving the efficiency at which certain chemical reactions occur during making aliphatic carboxamides by adding specific types of bases or activators into reactants containing these amines. These improvements help improve their overall performance when used together without causing unwanted side products from other components within those molecules being made.

Problems solved by technology

Technologies described in the patents involve improving the efficient use of alkynitrile chemistry (AN) that involves complex processes involving various components like alcohol/alkoxide, acid chloroformate, etc., resulting from different starting sources. These techniques aim to improve the overall performance and cost effectiveness of AN's key ingredients - alpha-acylencimides.

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  • Preparation method and application of organic basic catalyst for catalytic synthesis of alpha-cyanoethyl cinnamate
  • Preparation method and application of organic basic catalyst for catalytic synthesis of alpha-cyanoethyl cinnamate
  • Preparation method and application of organic basic catalyst for catalytic synthesis of alpha-cyanoethyl cinnamate

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Embodiment Construction

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] The embodiment of the present invention discloses a kind of method for the preparation of the organic basic catalyst that is used to catalyze the synthesis of ethyl α-cyanocinnamate, and the steps are as follows:

[0036] Weigh 378mg of melamine (3mmol) and 162mg of paraformaldehyde (5.4mmol) and dissolve them in 5mL of anhydrous dimethyl sulfoxide. The mixed solution was transferred to a reaction kettle, placed in an oven at 120°C and heated for 0.5h. After the heating was stopped, the reaction kettle was taken out, and a unifo...

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Abstract

The invention discloses a preparation method and application of an organic basic catalyst for catalytic synthesis of alpha-cyanoethyl cinnamate. The prepared catalyst mPMF can efficiently catalyze benzaldehyde and ethyl cyanoacetate to generate alpha-cyanoethyl cinnamate under mild experimental conditions, and the catalyst has good selectivity on the alpha-cyanoethyl cinnamate and has good stability in a reaction system. The catalyst mPMF is prepared by taking melamine and paraformaldehyde which are commonly used in laboratories and industries as precursors through a solvothermal method, the raw materials are cheap and easy to obtain, the preparation method is simple and easy to operate, and the catalyst mPMF can be used for industrial large-scale production.

Description

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Claims

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Application Information

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Owner JILIN INST OF CHEM TECH
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