Triethylamine → 4-[3-(4-n-Butylbenzoylamino)propylthio]pyridine hydrochloride

HRID 2210118Notes

Reaction equation

HRID 2210118 reaction equation
Cl.Cl.[NH2:3][CH2:4][CH2:5][CH2:6][S:7][C:8]1[CH:13]=[CH:12][N:11]=[CH:10][CH:9]=1.C(N(CC)CC)C.[CH2:21]([C:25]1[CH:33]=[CH:32][C:28]([C:29]([Cl:31])=[O:30])=[CH:27][CH:26]=1)[CH2:22][CH2:23][CH3:24]>C(Cl)Cl>[ClH:31].[CH2:21]([C:25]1[CH:26]=[CH:27][C:28]([C:29]([NH:3][CH2:4][CH2:5][CH2:6][S:7][C:8]2[CH:13]=[CH:12][N:11]=[CH:10][CH:9]=2)=[O:30])=[CH:32][CH:33]=1)[CH2:22][CH2:23][CH3:24]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 1200494-Butylbenzoyl chlorideHCID 190792594-(3-Aminopropylthio)pyridine dihydrochloride

Product 1

HCID 190790794-[3-(4-n-Butylbenzoylamino)propylthio]pyridine hydrochlorideYield 80.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 1.00 g (4.15 mmol) of 4-(3-aminopropylthio)pyridine dihydrochloride and 2.78 ml (19.9 mmol) of triethylamine in 40 ml of methylene chloride was added 0.93 ml (4.96 mmol) of 4-n-butylbenzoyl chloride under ice-cooling with stirring and the mixture was stirred at room temperature for 30 minute. The reaction mixture was washed with an aqueous saturated sodium bicarbonate solution and water and dried. The solvent was distilled off. The residue was purified by column chromatography (eluent: ethyl acetate) to obtain 1.10 g of the desired compound (free base) (80.7%, colorless wax), mp: 46.0°-47.0° C.

Workup

  1. temperaturecooling
  2. stirringthe mixture was stirred at room temperature for 30 minute
  3. washThe reaction mixture was washed with an aqueous saturated sodium bicarbonate solution and water
  4. customdried
  5. distillationThe solvent was distilled off
  6. customThe residue was purified by column chromatography (eluent: ethyl acetate)

Sources & evidence

ORD record
ord-025d4af132164c6cb16466305c522a9b
Source dataset
uspto-grants-1995_10
Patent number
US05457106

Reaction notes

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