Butanal → Formate

HRID 1657968Notes

Reaction equation

HRID 1657968 reaction equation
[CH2:1]([C:3]([CH2:8][OH:9])([CH2:6][OH:7])[CH2:4][CH3:5])[OH:2].C(=[O:14])CCC.[CH2:15]=[O:16]>>[CH2:1]([C:3]([CH2:8][OH:9])([CH2:6][OH:7])[CH2:4][CH3:5])[OH:2].[CH:15]([O-:14])=[O:16]

Participants

5

Reactant 3

HCID 261ButanalHCID 712FormaldehydeHCID 6510Trimethylolpropane2×

Product 2

HCID 283FormateHCID 6510Trimethylolpropane

Procedure

In the industrial production of trimethylolpropane, n-butyraldehyde is reacted with formaldehyde in an aqueous solution in the presence of an alkaline catalyst. After the reaction, trimethylolpropane is separated in a usual manner. Thus, after or without an evaporation, the reaction mixture is subjected to extraction with a solvent, for example ethyl acetate, amyl alcohol, methyl isobutyl ketone, hexyl alcohol, isooctyl alcohol or cyclohexanol. In this way a solution of trimethylolpropane substantially free from formate is obtained. Alternatively, water is substantially removed from the reaction mixture, whereupon the concentrate is filtered while hot to separate formate from crude trimethylolpropane.

Workup

  1. customis separated in a usual manner
  2. customThus, after or without an evaporation

Sources & evidence

ORD record
ord-866f47d81a464f7dae83c3f7585a78ee
Source dataset
uspto-grants-1976_06
Patent number
US03962347

Reaction notes

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