Formaldehyde → Phenoaldehyde

HRID 127835Notes

Reaction equation

HRID 127835 reaction equation
[CH2:1]=[O:2].[OH-].[Na+].[C:5]1([CH:12]=[CH:11][CH:10]=[C:8]([OH:9])[CH:7]=1)[OH:6]>O>[C:7]1([CH3:1])[C:8]([OH:9])=[CH:10][CH:11]=[CH:12][CH:5]=1.[C:5]1([CH:12]=[CH:11][CH:10]=[C:8]([OH:9])[CH:7]=1)[OH:6].[CH2:1]=[O:2]

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 5054ResorcinolHCID 14798Sodium Hydroxide

Product 1

HCID 3080914Phenoaldehyde

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Into a 300 ml flask are charged pure methacresol (32.4 g, 0.3 mol), 37% formalin (48.6 g, 0.6 mol) and a 10 N-NaOH aqueous solution (3 ml, 0.03 mol), and the mixture is reacted at 70° C. for 3 hours. To the mixture is further added resorcinol (77 g, 0.7 mol), and the mixture is further reacted at 50° C. for 3 hours. After completion of the reaction, water is distilled off at 120° C. under reduced pressure (reduced degree: 15 mmHg) to give cresol/resorcinol/formaldehyde co-polycondensate resin having a softening point of 92° C. (Resin W).

Workup

  1. customthe mixture is further reacted at 50° C. for 3 hours
  2. distillationis distilled off at 120° C. under reduced pressure (reduced degree: 15 mmHg)

Sources & evidence

ORD record
ord-ad318d9f923a429997f99bb6d74e6765
Source dataset
uspto-grants-1981_03
Patent number
US04257926

Reaction notes

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