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Preparation method for 4-methoxycinnamaldehyde

A technology of methoxycinnamaldehyde and methoxybenzaldehyde, which is applied in the field of medicine, can solve the problems of unstable yield, low yield of 4-methoxycinnamaldehyde, complex synthesis process, etc., and achieve high procurement cost Effect

Inactive Publication Date: 2018-12-18
SHANGHAI HUAJIN BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The yield of the existing preparation method of 4-methoxycinnamaldehyde is not high, the synthesis process is complicated, and the yield is unstable. It is necessary to invent a new preparation method to overcome the deficiencies in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1: the preparation of 4-methoxycinnamaldehyde:

[0008] Add 1361 mg of 4-methoxybenzaldehyde in the reactor, add 5 ml of pyridine and 10 ml of acetonitrile, stir, add 3 ml of acetaldehyde at room temperature, then stir at room temperature for 30 minutes, then add 1200 mg of potassium carbonate, The reaction was then stirred for 2 hours at room temperature. After the reaction was completed, the compound 4-methoxycinnamaldehyde was obtained through the post-treatment and purification process with a yield of 90.3%.

Embodiment 2

[0009] Embodiment 2: the preparation of 4-methoxycinnamaldehyde:

[0010] Add 1361 mg of 4-methoxybenzaldehyde in the reactor, add 5 ml of pyridine and 10 ml of acetonitrile, stir, add 3 ml of acetaldehyde at room temperature, then stir at room temperature for 30 minutes, then add 1200 mg of potassium carbonate, The reaction was then stirred for 2 hours at room temperature. After the reaction was completed, the compound 4-methoxycinnamaldehyde was obtained through the post-treatment and purification process with a yield of 88.1%.

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Abstract

The invention provides a preparation method for 4-methoxycinnamaldehyde which is as described in the specification, belonging to the technical field of medical technology. To overcome technical problems in the prior art, the invention relates to a more advanced preparation method for 4-methoxycinnamaldehyde. The main point of a technical scheme in the invention to provides a novel preparation method for the compound.

Description

technical field [0001] The invention relates to the technical field of medicine, in particular, the invention relates to a preparation method of 4-methoxycinnamaldehyde. Background technique [0002] 4-Methoxycinnamaldehyde is an important intermediate raw material for the synthesis of pharmaceutical products. [0003] The yield of the existing 4-methoxycinnamaldehyde is not high, the synthesis process is complex, and the yield is unstable. It is necessary to invent a new preparation method to overcome the shortcomings of the prior art. Contents of the invention [0004] The present invention adopts a new technology, aiming at the disadvantages of the existing 4-methoxycinnamaldehyde preparation method, such as low yield, complex synthesis process, unstable yield, and high purchase cost of raw materials, after long-term research and development , invented a new preparation method to overcome the shortcomings of the existing technology, and laid a good technical foundation...

Claims

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Application Information

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IPC IPC(8): C07C45/74C07C47/277
CPCC07C45/74C07C47/277
Inventor 不公告发明人
Owner SHANGHAI HUAJIN BIOTECH CO LTD
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