Method for preparing vitamin B1 intermediate by sodium modification

Method for preparing vitamin B1 intermediate by sodium modification

The invention discloses a method for preparing a vitamin B1 intermediate by sodium modification, which comprises the following steps: sequentially adding a liquid sodium methoxide and beta-aminopropionitrile into a closed reaction vessel; heating the reaction vessel to 35-55 DEG C, introducing carbo...

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Hauptverfasser: SHEN YINYUAN, LI LAICHENG, CUI SHENGKAI, CHEN YINGMING
Format: Patent
Sprache:eng
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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creator SHEN YINYUAN
LI LAICHENG
CUI SHENGKAI
CHEN YINGMING
description The invention discloses a method for preparing a vitamin B1 intermediate by sodium modification, which comprises the following steps: sequentially adding a liquid sodium methoxide and beta-aminopropionitrile into a closed reaction vessel; heating the reaction vessel to 35-55 DEG C, introducing carbon monoxide into the reaction vessel, and reacting to obtain a methyl formate product; and heating the reaction vessel to 55-85 DEG C, and reacting the methyl formate product with beta-aminopropionitrile under holding conditions to obtain the sodium modification product alpha-sodiumformacyl-beta-tetramidopropionitrile. The preparation method has the advantages of simple technical operation, energy saving and environment friendliness.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title Method for preparing vitamin B1 intermediate by sodium modification
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