Improved process for preparing 3-methoxyl-4-hydroxybenaldehyde

Improved process for preparing 3-methoxyl-4-hydroxybenaldehyde

An improved process for preparing 3-methoxyl-4-hydroxybenzaldehyde features use of toluphenol as starting raw material. In the presence of sodium alkoxide solution, appropriate cobalt salt catalyst is added while oxygen is introduced for aldehydizing reaction to obtain 55-75% of desired product. Aft...

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Hauptverfasser: YUEZHEN HU, KANG HU, YUECONG HU
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Sprache:eng
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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KANG HU
YUECONG HU
description An improved process for preparing 3-methoxyl-4-hydroxybenzaldehyde features use of toluphenol as starting raw material. In the presence of sodium alkoxide solution, appropriate cobalt salt catalyst is added while oxygen is introduced for aldehydizing reaction to obtain 55-75% of desired product. After acidified, the unreacted substance is recovered to prevent the generation of ortho products. Itsadvantages are high yield of desired product, no need of using toxic substance, and very less waste discharge.
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CHEMISTRY
METALLURGY
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title Improved process for preparing 3-methoxyl-4-hydroxybenaldehyde
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