Synthetic method of N-aminoethyl-3-aminopropyl methyl dimethoxy silane

Abstract

The invention relates to a synthetic method of N-aminoethyl-3-aminopropyl methyl dimethoxy silane. The synthetic method comprises the following steps: synthesizing an intermediate from raw materials of methyl dichloresilane and allyl chloride; putting the intermediate into a three-neck round bottom flask, putting anhydrous methanol into a constant-pressure dropping funnel, heating, dropwise adding the methanol inside the funnel, and performing reduced pressure distillation to collect a distillate of 88-92 DEG C / 2700Pa; adding ethanediamine into a three-neck round bottom flask, arranging a reflux condensing tube and a constant-pressure dropping funnel, adding the product of the second step into the constant-pressure dropping funnel, and starting stirring; heating, dropwise adding the product of the second step; and transferring the materials into a separating funnel, standing to separate the system into two layers, removing the lower layer and performing reduced pressure distillation on the upper layer to collect a distillate of 139-141 DEG C / 3300Pa, namely a target product. The synthetic method of N-aminoethyl-3-aminopropyl methyl dimethoxy silane, provided by the invention, ensures that a production method is simplified and the raw material utilization ratio is improved.

Description

Technical field [0001] The invention relates to the field of chemical product processing methods, in particular to a synthesis method of N-aminoethyl-3-aminopropylmethyldimethoxysilane. Background technique [0002] N-aminoethyl-3-aminopropylmethyldimethoxysilane is an important modification additive in the production of wires and cables and polymer processing. In addition, it is an indispensable raw material for the preparation of amino silicone oil and its emulsion. However, the current production method is relatively complicated, the raw material utilization rate is low, and a simple synthetic method to improve the raw material utilization rate is lacking. Summary of the invention [0003] The invention provides a synthesis method of N-aminoethyl-3-aminopropylmethyldimethoxysilane, which simplifies the production method and improves the utilization rate of raw materials. [0004] The technical scheme of the present invention is as follows: The synthesis method of N-aminoethyl-3-...

AI Technical Summary

Problems solved by technology

[0002] N-aminoethyl-3-aminopropylmethyldimethoxysilane is an important modifying additive in the production of wire and cable and polymer processing. In addition, it is an indispensable raw material for the preparation of amino silicone oil and its emulsion. However, the current production method is relatively complicated, and the utilization rate of raw materials is low, and there is a lack of a simple synthesis method to improve the utilization rate of raw materials.