Formaldehyde → HCID 86738830, compound
Reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([OH:9])[CH:6]=[CH:7][CH:8]=1.C(O)(=O)[C:11](O)=[O:12].C=O.[C:18]1([CH:25]=[CH:24][CH:23]=[C:21]([OH:22])[CH:20]=1)[OH:19]>CC(C)=O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([OH:9])[CH:6]=[CH:7][CH:8]=1.[C:18]1([CH:25]=[CH:24][CH:23]=[C:21]([OH:22])[CH:20]=1)[OH:19].[CH2:11]=[O:12]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 60 °C
Procedure
Into a reactor equipped with a thermometer, an agitator, a reflux apparatus and a dropping funnel were charged 124 parts (1 mol) of m-methoxyphenol, 0.62 part of oxalic acid and 248 parts of acetone, and 23.4 parts of 37% aqueous formaldehyde solution was added dropwise to the mixture in 1 hour while agitating the resulting mixture at 60° C. Immediately after completion of the addition, 62 parts (0.5 mol) of resorcin and 0.31 part of oxalic acid were added to the mixture, and then 39.2 parts of 37% aqueous formaldehyde solution was added to the mixture in 2 hours while agitating the resulting mixture at 60° C., and further an agitation was continued for 3 hours at 60° C. Then, acetone and water were removed from the reaction solution, the residue was charged into a distillator, and unreacted m-methoxyphenol and resorcin were removed by a distillation under reduced pressure to obtain a m-methoxyphenol/resorcin/formaldehyde cocondensate.
Workup
- customInto a reactor equipped with a thermometer
- additionwas added dropwise to the mixture in 1 hour
- additionwere added to the mixture
- stirringwhile agitating the resulting mixture at 60° C.
- customThen, acetone and water were removed from the reaction solution
- additionthe residue was charged into a distillator, and unreacted m-methoxyphenol and resorcin
- customwere removed by a distillation under reduced pressure
Sources & evidence
- ORD record
- ord-5c534e705a4348198ff7086406aa9c8a
- Source dataset
- uspto-grants-1983_03
- Patent number
- US04378453
Reaction notes
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