Process of synthesizing bis (trihydroxy methyl propane)

The present invention discloses process of synthesizing bis(trihydroxymetyl propane) by means of reaction of formaldehyde, n-butyl aldehyde and trihydroxymetyl propane. The synthesis of bis(trihydroxymetyl propane) includes the following steps: the aldol condensation reaction and dewatering reaction...

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Bibliographic Details
Main Author NAIQING,XU LIU
Format Patent
LanguageEnglish
Published 07.11.2007
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The present invention discloses process of synthesizing bis(trihydroxymetyl propane) by means of reaction of formaldehyde, n-butyl aldehyde and trihydroxymetyl propane. The synthesis of bis(trihydroxymetyl propane) includes the following steps: the aldol condensation reaction and dewatering reaction of n-butyl aldehyde and formaldehyde in the presence of alkaline catalyst to produce 2-ethyl acrylaldehyde, the subsequent addition reaction of 2-ethyl acrylaldehyde with added trihydroxymetyl propane in alkaline condition to produce intermediate product 2-ethyl-3-(beta, beta-demethylol-butoxy)-1-propanal, and adding formaldehyde into the intermediate product to produce aldol condensation reaction and crossed disproportionation reaction to produce bis(trihydroxymetyl propane). The process has high selectivity and high yield of bis(trihydroxymetyl propane) and other features, and is easy application in industrial production.
Bibliography:Application Number: CN2007155699