Triethylamine → 4-[3-(3,5-Dimethoxybenzoylamino)propylthio]pyridine

HRID 2210117Notes

Reaction equation

HRID 2210117 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.[CH3:21][O:22][C:23]1[CH:24]=[C:25]([CH:29]=[C:30]([O:32][CH3:33])[CH:31]=1)[C:26](Cl)=[O:27]>C(Cl)Cl>[CH3:33][O:32][C:30]1[CH:29]=[C:25]([CH:24]=[C:23]([O:22][CH3:21])[CH:31]=1)[C:26]([NH:3][CH2:4][CH2:5][CH2:6][S:7][C:8]1[CH:13]=[CH:12][N:11]=[CH:10][CH:9]=1)=[O:27]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 870033,5-Dimethoxybenzoyl chlorideHCID 190792594-(3-Aminopropylthio)pyridine dihydrochloride

Product 1

HCID 152314884-[3-(3,5-Dimethoxybenzoylamino)propylthio]pyridineYield 87.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 1.00 g (4.15 mmol) of 4-(3-aminopropylthio)pyridine dihydrochloride and 2.77 ml (19.8 mmol) of triethylamine in 40 ml of methylene chloride was added 995 mg (4.96 mmol) of 3,5-dimethoxybenzoyl chloride under ice-cooling with stirring and the mixture was stirred at room temperature for 30 minutes. 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 1.21 g of the desired compound (87.7% pale yellow powder), mp: 110.0°-111.0° C.

Workup

  1. temperaturecooling
  2. stirringthe mixture was stirred at room temperature for 30 minutes
  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-3b7d643237464e36b558485d97a7ee10
Source dataset
uspto-grants-1995_10
Patent number
US05457106

Reaction notes

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