Water → HCID 13019275, compound
Reaction equation
[NH2:1][C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[CH:4][CH:3]=1.Br[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH3:26].O>CN(C)P(N(C)C)(N(C)C)=O>[CH2:26]([NH:1][C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[CH:4][CH:3]=1)[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12][CH3:11]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
p-Aminobenzonitrile (11.8 g., 0.1 mole) and 1-bromohexadecane (15.25 g., 0.05 mole) are dissolved in hexamethylphosphoramide (200 ml.) and heated under nitrogen in an oil-bath maintained at 120° for 22 hours. The reaction mixture is cooled to room temperature and water (50 ml.) is added gradually. The mixture is then chilled in an ice-bath. The precipitate is filtered, washed thoroughly with water and dried. It is then washed repeatedly with hexane and dried; 14.2 g. pale brownish yellow granular solid is obtained as homogeneous product. Crystallization from ether-hexane affords pale yellow prisms, melting point 63°-64° C.
Workup
- temperatureheated under nitrogen in an oil-bath
- temperaturemaintained at 120° for 22 hours
- temperatureThe mixture is then chilled in an ice-bath
- filtrationThe precipitate is filtered
- washwashed thoroughly with water
- customdried
- washIt is then washed repeatedly with hexane
- customdried
- custompale brownish yellow granular solid is obtained as homogeneous product
- customCrystallization from ether-hexane
- customaffords pale yellow prisms, melting point 63°-64° C.
Sources & evidence
- ORD record
- ord-d55385aa085f45808a5d27a0e5ba147f
- Source dataset
- uspto-grants-1980_08
- Patent number
- US04216330
Reaction notes
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