Hydrochloric Acid → p-Cresol formaldehyde
Reaction equation
[CH:1]1[C:6]([OH:7])=[CH:5][CH:4]=[C:3]([CH3:8])[CH:2]=1.[CH2:9]=[O:10].[OH-].[Na+].Cl>>[CH:5]1[C:6]([OH:7])=[CH:1][CH:2]=[C:3]([CH3:8])[CH:4]=1.[CH2:9]=[O:10]Participants
5
Procedure
A reaction vessel was charged with 108 g (1 mole) of p-cresol, 162 g (2 moles as HCHO) of 37% formalin and 4 g (0.1 mole) of sodium hydroxide, and reaction was carried out at 80° C. for 4 hours. The reaction mixture was cooled to room temperature, neutralized with 2 N hydrochloric acid and washed with water to obtain 98 g of a resol type p-cresol/formaldehyde resin. The number average molecular weight Mn of the obtained resin was 330 as determined according to the vapor pressure osmometry in dimethylacetamide at 90° C.
Workup
- washwashed with water
Sources & evidence
- ORD record
- ord-48d48481fcba49f9a0177679d1a10eb9
- Source dataset
- uspto-grants-1982_08
- Patent number
- US04345054
Reaction notes
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