Allylamine → N-allyl-2-[4-(5-trifluoromethyl-2-pyridyloxy)phenoxy]-propionic acid amide
Reaction equation
[F:1][C:2]([F:24])([F:23])[C:3]1[CH:4]=[CH:5][C:6]([O:9][C:10]2[CH:22]=[CH:21][C:13]([O:14][CH:15]([CH3:20])[C:16](OC)=[O:17])=[CH:12][CH:11]=2)=[N:7][CH:8]=1.[CH2:25]([NH2:28])[CH:26]=[CH2:27]>>[CH2:25]([NH:28][C:16](=[O:17])[CH:15]([O:14][C:13]1[CH:12]=[CH:11][C:10]([O:9][C:6]2[CH:5]=[CH:4][C:3]([C:2]([F:24])([F:23])[F:1])=[CH:8][N:7]=2)=[CH:22][CH:21]=1)[CH3:20])[CH:26]=[CH2:27]Participants
3
Conditions
- Temperature
- 60 °C
Procedure
A mixture containing 11.85 g (0.035 mol) of methyl 2-[4-(5-trifluoromethyl-2-pyridyloxy)phenoxy]-propionate and 11.5 g (0.2 mol) of allylamine is boiled under reflux (about 60° C.) for 10 hours. (The reaction is followed by gas chromatography.) Thereafter, the excess of allylamine is distilled off and the residue is dissolved in benzene. After washing the solution cooled down with 5% aqueous hydrochloric acid and then with saturated sodium chloride solution, the organic phase is dried over anhydrous magnesium sulfate and evaporated. The crude product is recrystallized from petroleum ether (b.p. 120° C.) containing a small amount of toluene.
Workup
- distillation) Thereafter, the excess of allylamine is distilled off
- dissolutionthe residue is dissolved in benzene
- washAfter washing the solution
- temperaturecooled down with 5% aqueous hydrochloric acid
- dry with materialwith saturated sodium chloride solution, the organic phase is dried over anhydrous magnesium sulfate
- customevaporated
- customThe crude product is recrystallized from petroleum ether (b.p. 120° C.)
- additioncontaining a small amount of toluene
Sources & evidence
- ORD record
- ord-0b5d0fcbd1944a6bbe83be6dfbb0c587
- Source dataset
- uspto-grants-1993_04
- Patent number
- US05199970
Reaction notes
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