Acetic Acid → N-(1-Benzyl-4-piperidyl)-4-(N-acetyl-N-methylamino)benzenesulfonamide

HRID 1198648Notes

Reaction equation

HRID 1198648 reaction equation
[C:1]([N:4]([C:6]1[CH:11]=[CH:10][C:9]([S:12](Cl)(=[O:14])=[O:13])=[CH:8][CH:7]=1)[CH3:5])(=[O:3])[CH3:2].[NH2:16][CH:17]1[CH2:22][CH2:21][N:20]([CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH2:19][CH2:18]1.C(O)(=O)C.[H][H]>C(O)C.[Pd]>[CH2:23]([N:20]1[CH2:21][CH2:22][CH:17]([NH:16][S:12]([C:9]2[CH:10]=[CH:11][C:6]([N:4]([C:1](=[O:3])[CH3:2])[CH3:5])=[CH:7][CH:8]=2)(=[O:14])=[O:13])[CH2:18][CH2:19]1)[C:24]1[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=1

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 2931464-(N-methylacetamido)benzene-1-sulfonyl chlorideHCID 4158521-Benzyl-4-piperidylamineHCID 178418361HCID 178418361, compound

Product 1

HCID 15049722N-(1-Benzyl-4-piperidyl)-4-(N-acetyl-N-methylamino)benzenesulfonamide

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

N-(1-Benzyl-4-piperidyl)-4-(N-acetyl-N-methylamino)benzenesulfonamide was prepared as a colorless oil from the 4-(N-acetyl-N-methylamino)benzenesulfonyl chloride (20.0 g, 80.8 mmol) and 4-amino-1-benzylpiperidine (18.16 ml, 88.9 mmol) in a similar manner to that described in Preparative Example 16. This oil was dissolved in ethanol (200 ml), followed by the addition of glacial acetic acid (10.0 ml). The obtained mixture was stirred in the presence of 10% palladium/carbon (water-containing one, 2.00 g) in a hydrogen atmosphere (1 atm) at 50° C for 5 hours and filtered to remove the catalyst. The filtrate was concentrated to precipitate a crystal. The resulting mixture was washed with ethyl acetate and filtered to give the title compound as a white crystal (29.70 g, overall yield of two steps: 100%).

Workup

  1. filtrationfiltered
  2. customto remove the catalyst
  3. concentrationThe filtrate was concentrated
  4. customto precipitate a crystal
  5. washThe resulting mixture was washed with ethyl acetate
  6. filtrationfiltered

Sources & evidence

ORD record
ord-fa47d7ae201045ee8b681a45e5e8ede3
Source dataset
uspto-grants-1994_01
Patent number
US05281626

Reaction notes

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