Formaldehyde → Bis(2-hydroxyphenyl)methane

HRID 1608644Notes

Reaction equation

HRID 1608644 reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:8]=[O:9]>O>[CH:1]1[CH:2]=[C:3]([CH2:4][C:6]2[C:1]([OH:7])=[CH:2][CH:3]=[CH:4][CH:5]=2)[C:8]([OH:9])=[CH:5][CH:6]=1

Participants

4

Reactant 2

HCID 712FormaldehydeHCID 996Phenol

Product 1

HCID 75575Bis(2-hydroxyphenyl)methane

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Stoichiometrically excess phenol and formaldehyde are introduced into a preparation step 1 (from a reaction step to a phenol-removal step). More specifically, to a reactor equipped with, for instance, a stirring machine, a temperature control device, a reflux condenser, a complete condenser and a vacuum device, there are charged phenol, formaldehyde and an acid catalyst and these ingredients are reacted at a determined temperature for a desired period with stirring. Then the acid catalyst, the water formed during the reaction and the unreacted phenol are removed from the reaction product to give crude bisphenol F 2.

Workup

  1. customfrom a reaction step
  2. customto a phenol-removal step)
  3. customMore specifically, to a reactor equipped with, for instance
  4. additiona stirring machine, a temperature control device, a reflux condenser, a complete condenser and a vacuum device, there are charged phenol, formaldehyde
  5. customan acid catalyst and these ingredients are reacted at a determined temperature for a desired period
  6. customthe unreacted phenol are removed from the reaction product

Sources & evidence

ORD record
ord-284ebf426ad9434c93306ed900cba244
Source dataset
uspto-grants-1995_03
Patent number
US05395915

Reaction notes

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