Formaldehyde → 2,6-Dihydroxybenzaldehyde

HRID 2107525Notes

Reaction equation

HRID 2107525 reaction equation
[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].C(O)(=O)[C:10](O)=[O:11].C=O>O>[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[C:3]=1[CH:10]=[O:11])[OH:2]

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 971Oxalic AcidHCID 5054Resorcinol

Product 1

HCID 102858012,6-Dihydroxybenzaldehyde

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

In terms of weight, 110 parts of resorcinol, 0.62 part of oxalic acid, and 248 parts of water were charged into a flask, to which 50 parts of 37% formalin was dropwise added at 60° C. in one hour under stirring. Then, the stirring was further continued for 1 hour to obtain a resorcinol-formaldehyde condensate (B) containing excess resorcinol.

Workup

  1. additionwas dropwise added at 60° C. in one hour

Sources & evidence

ORD record
ord-2f2466996dad44e98b278659f2004d39
Source dataset
uspto-grants-1990_06
Patent number
US04935297

Reaction notes

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