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Method for preparing N-(6-chloro-3-pyridylmethyl) methylamine by micro-channel reactor

A technology of microchannel reactor and channel reactor, which is applied in chemical instruments and methods, chemical/physical/physical-chemical reactors, chemical/physical/physical-chemical processes, etc. Long time and other problems, to achieve the effect of improving yield, improving safety performance, and improving yield

Pending Publication Date: 2020-10-02
NINGXIA RUITAI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Invention describes a new way to make certain chemical compounds quickly while reducing their risk of explosion or harm during manufacturing processes. By making it faster than previous methods like stirring them up together instead of just mixing everything separately beforehand, these techniques help improve overall quality control over final products made through different steps.

Problems solved by technology

The technical problem addressed by this patented technology relates to improving the efficiency at producing certain chemical compounds such as mimicry agents or pesticides that are used on crops without having high costs due to their poor handling properties (liquids).

Method used

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  • Method for preparing N-(6-chloro-3-pyridylmethyl) methylamine by micro-channel reactor
  • Method for preparing N-(6-chloro-3-pyridylmethyl) methylamine by micro-channel reactor

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0022] see Figure 1-2

[0023] Known by above technical scheme, a kind of microchannel reactor prepares the method for N-(6-chloro-3-pyridylmethyl)methanamine, comprises the steps:

[0024] A. Add monomethylamine aqueous solution and TEBAC aqueous solution to the silk bottle, shake well to form a solution for later use;

[0025] B. Add liquid 2-chloro-5-chloromethylpyridine and an organic solvent into a four-necked flask equipped with stirring, condenser and thermometer, and stir to form a uniform and stable solution for subsequent use;

[0026] C, two streams of solutions are pumped into the microchannel reactor reaction simultaneously to obtain the mixture containing N-(6-chloro-3-pyridy...

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Abstract

The invention discloses a method for preparing N-(6-chloro-3-pyridylmethyl) methylamine by a micro-channel reactor, which comprises the following steps: A) adding a monomethylamine aqueous solution and a TEBAC aqueous solution into a screwed bottle, and shaking up to form a solution for later use; B), adding liquid 2-chloro-5-chloromethylpyridine and an organic solvent into a four-neck flask provided with a stirrer, a condenser pipe and a thermometer, and stirring to form a uniform and stable solution for later use; C), pumping the two solutions into a micro-channel reactor at the same time for reaction to obtain a mixture containing N-(6-chloro-3-pyridylmethyl) methylamine; and D), separating the mixture containing the N-(6-chloro-3-pyridylmethyl) methylamine, and carrying out water layerextraction, oil layer washing, oil layer merging and distillation to obtain the N-(6-chloro-3-pyridylmethyl) methylamine. The reaction efficiency is greatly improved, the safety performance is greatly improved, the micro-channel reactor is provided with 10 reaction modules, more sufficient reaction can be achieved, the product yield is increased, the yield is increased to 92% from 86%, and the yield is increased by 6% compared with a kettle type process.

Description

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Claims

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Application Information

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Owner NINGXIA RUITAI TECH
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