Reaction equation
[C:1]([C:5]1[CH:10]=[C:9]([C:11]([CH3:14])([CH3:13])[CH3:12])[CH:8]=[C:7]([C:15]([CH3:18])([CH3:17])[CH3:16])[C:6]=1[OH:19])([CH3:4])([CH3:3])[CH3:2].C(N(CCC)CCC)CC.C[O-].[Na+:32]>CO>[C:1]([C:5]1[CH:10]=[C:9]([C:11]([CH3:14])([CH3:13])[CH3:12])[CH:8]=[C:7]([C:15]([CH3:18])([CH3:17])[CH3:16])[C:6]=1[O-:19])([CH3:4])([CH3:3])[CH3:2].[Na+:32]Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
66.9 g of 2,4,6-tri-t-butylphenol was dissolved or dispersed into 213.5 g of tri-n-propyl amin. To this solution was added 13.5 of sodium methoxide. The mixture was heated in flask until reflux occurred at about 150° C. When the reflux temperature dropped below 150° C., distillate was condensed and removed from the reaction mixture until the vapor temperature in the flask rose above 150° C. then the mixture was again refluxed. When the vapor temperature dropped below 150° C., distillate was condensed and removed from the reaction mixture until the vapor temperature rose above 150° C. This alternate process of reflux and condensation was repeated until 8.0 g of methyl alcohol, CH3OH had been distilled Away from the reaction mixture. Approximately 112 g of tri-n-propyl amine was stripped from the reaction mixture leaving about 71 g of sodium 2,4,6-tri-t-butyl phenolate in about 100 g of tri-n-propyl amine as a 40 weight percent slurry of the phenolate salt in the amine solvent.
Workup
- temperatureThe mixture was heated in flask
- temperatureuntil reflux
- customoccurred at about 150° C
- additionWhen the reflux temperature dropped below 150° C.
- customcondensed
- customremoved from the reaction mixture until the vapor temperature in the flask
- customrose above 150° C.
- temperaturethe mixture was again refluxed
- additionWhen the vapor temperature dropped below 150° C.
- customcondensed
- customremoved from the reaction mixture until the vapor temperature
- customrose above 150° C
- temperatureThis alternate process of reflux
- customcondensation
- distillationhad been distilled Away from the reaction mixture
Sources & evidence
- ORD record
- ord-0c029dc401a44020a8e149dbcc63d0a2
- Source dataset
- uspto-grants-2003_01
- Patent number
- US06504065B1
Linked notes
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