Ethanol → 2,5-Dimethylresorcinol-formaldehyde

HRID 1632783Notes

Reaction equation

HRID 1632783 reaction equation
[CH3:1][C:2]1[C:8]([OH:9])=[CH:7][C:6]([CH3:10])=[CH:5][C:3]=1[OH:4].[CH2:11]([OH:13])C.C=O>Cl.O>[CH3:1][C:2]1([CH:11]=[O:13])[C:8]([OH:9])=[CH:7][C:6]([CH3:10])=[CH:5][CH:3]1[OH:4]

Participants

6

Reactant 3

HCID 702EthanolHCID 712FormaldehydeHCID 681032,5-Dimethylresorcinol

Product 1

HCID 1317139342,5-Dimethylresorcinol-formaldehyde

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidCatalystHCID 962WaterSolvent

Procedure

To a solution of 691 g. of 2,5-dimethylresorcinol in 1 l. of ethanol were added 348 g. of a 37% aqueous solution of formaldehyde and 0.5 ml. of 35% conc. hydrochloric acid as a catalyst. The resulting mixture was heated in the same manner as in the Synthesis example 1 and poured into 5 l. of a cold water to give a pale brown powdery resin.

Workup

  1. temperatureThe resulting mixture was heated in the same manner as in the Synthesis example 1
  2. additionpoured into 5 l

Sources & evidence

ORD record
ord-d9080a739c8647f39e8fafbeec1946fa
Source dataset
uspto-grants-1984_10
Patent number
US04477553

Reaction notes

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