Formaldehyde → Dibenzyl ether

HRID 371443Notes

Reaction equation

HRID 371443 reaction equation
C1(O)C=CC=CC=1.C=O.C1C=[C:18]2[C:13]([CH:14]=[C:15]([C:20]([O-:22])=O)[CH:16]=[CH:17]2)=CC=1.[CH:23]1[CH:32]=[C:31]2[C:26]([CH:27]=C(C([O-])=O)C=C2)=[CH:25][CH:24]=1.[Pb+2]>>[CH2:27]([O:22][CH2:20][C:15]1[CH:14]=[CH:13][CH:18]=[CH:17][CH:16]=1)[C:26]1[CH:31]=[CH:32][CH:23]=[CH:24][CH:25]=1

Participants

4

Reactant 3

HCID 712FormaldehydeHCID 996PhenolHCID 25021832Lead naphthenates

Product 1

HCID 7657Dibenzyl ether

Conditions

Temperature
130 °C

Procedure

A benzyl ether-type phenolic resin was prepared in a known method by the condensation reaction of 470 kg of phenol and 479 kg of 47% formalin in the presence of lead naphthenate as the catalyst followed by the removal of the unreacted phenol and formaldehyde as well as water and the like volatile matter under reduced pressure with heating up to a maximum temperature of 130° C. The thus obtained phenolic resin was solid at room temperature and had a softening point of 60° C.

Workup

  1. customfollowed by the removal of the unreacted phenol and formaldehyde as well as water
  2. customat room temperature
  3. customa softening point of 60° C.

Sources & evidence

ORD record
ord-c3319b7dc6e4473790f0d217eb8d7bc0
Source dataset
uspto-grants-1985_07
Patent number
US04532271

Reaction notes

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