Water → N-[4-(3,4-dihydroquinolin-1(2H)-ylcarbonyl)phenyl]benzamide

HRID 1603093Notes

Reaction equation

HRID 1603093 reaction equation
[NH2:1][C:2]1[CH:19]=[CH:18][C:5]([C:6]([N:8]2[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[CH2:11][CH2:10][CH2:9]2)=[O:7])=[CH:4][CH:3]=1.C(N(CC)CC)C.[C:27](Cl)(=[O:34])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1.O>ClCCl>[C:27]([NH:1][C:2]1[CH:19]=[CH:18][C:5]([C:6]([N:8]2[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[CH2:11][CH2:10][CH2:9]2)=[O:7])=[CH:4][CH:3]=1)(=[O:34])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1

Participants

6

Reactant 4

HCID 962WaterHCID 7412Benzoyl chlorideHCID 8471TriethylamineHCID 2984117(4-aminophenyl)(3,4-dihydroquinolin-1(2H)-yl)methanone

Product 1

HCID 10642000N-[4-(3,4-dihydroquinolin-1(2H)-ylcarbonyl)phenyl]benzamideYield 34.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 1-(4-aminobenzoyl)-1,2,3,4-tetrahydroquinoline (0.5 g) in dichloromethane (20 ml) is added triethylamine (0.3 g), and thereto is added benzoyl chloride (0.28 g) under ice-cooling. The mixture is stirred at room temperature for 1 hour. To the reaction mixture is added water and extracted with dichloromethane. The extract is dried over magnesium sulfate and the solvent is distilled off under reduced pressure. The resulting residue is purified by silica gel column chromatography (eluent; dichloromethane:methanol=50:1) and recrystallized from methanol to give 1-[4-(benzoylamino)benzoyl]-1,2,3,4-tetrahydroquinoline (245 mg) as white powder, m.p. 202.5-203.5° C.

Workup

  1. temperaturecooling
  2. extractionextracted with dichloromethane
  3. dry with materialThe extract is dried over magnesium sulfate
  4. distillationthe solvent is distilled off under reduced pressure
  5. customThe resulting residue is purified by silica gel column chromatography (eluent; dichloromethane:methanol=50:1)
  6. customrecrystallized from methanol

Sources & evidence

ORD record
ord-b9221e4f8874402ab999223f62481e55
Source dataset
uspto-grants-1999_11
Patent number
US05985869

Reaction notes

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