Method for preparing N,N-diethyl-3-aminopropyl trimethoxy silane

Method for preparing N,N-diethyl-3-aminopropyl trimethoxy silane

The invention discloses a method for preparing N,N-diethyl-3-aminopropyl trimethoxy silane. The method comprises the following steps: in the presence of a high boiling point solvent N,N-diethyl formamide, heating to be 110-130 DEG C to enable diethylamine and 3-chloropropy trimethoxy silane to react...

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Hauptverfasser: Xi Yanan, Che Hong, Zhong Qijun
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Sprache:chi ; eng
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ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
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creator Xi Yanan
Che Hong
Zhong Qijun
description The invention discloses a method for preparing N,N-diethyl-3-aminopropyl trimethoxy silane. The method comprises the following steps: in the presence of a high boiling point solvent N,N-diethyl formamide, heating to be 110-130 DEG C to enable diethylamine and 3-chloropropy trimethoxy silane to react at normal pressure, performing refluxing reaction for 6-10 hours, cooling to be 20 DEG C, filtering off solid diethylamine hydrochloride, and leaching once by using the solvent N,N-diethyl formamide; performing vacuum concentration on the filtrate, recycling the solvent N,N-diethyl formamide, and rectifying so as to obtain a 99% product; dissolving the solid diethylamine hydrochloride in a solution, dripping into a sodium hydroxide solution, distilling so as to recycle diethylamine, absorbing the gas generated in the reaction and aftertreatment process by using the solvent N,N-diethyl formamide, and reusing in the production process. By adopting the method, not only is the reaction time great shortened, but also t
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The method comprises the following steps: in the presence of a high boiling point solvent N,N-diethyl formamide, heating to be 110-130 DEG C to enable diethylamine and 3-chloropropy trimethoxy silane to react at normal pressure, performing refluxing reaction for 6-10 hours, cooling to be 20 DEG C, filtering off solid diethylamine hydrochloride, and leaching once by using the solvent N,N-diethyl formamide; performing vacuum concentration on the filtrate, recycling the solvent N,N-diethyl formamide, and rectifying so as to obtain a 99% product; dissolving the solid diethylamine hydrochloride in a solution, dripping into a sodium hydroxide solution, distilling so as to recycle diethylamine, absorbing the gas generated in the reaction and aftertreatment process by using the solvent N,N-diethyl formamide, and reusing in the production process. 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subjects ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title Method for preparing N,N-diethyl-3-aminopropyl trimethoxy silane
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