1-(Bis(4-fluorophenyl)methyl)piperazine → N-(2-hydroxyethyl)-6-[4-[bis(4-fluorophenyl)methyl]-1-piperazinyl]hexanesulfonamide

HRID 565769Notes

Reaction equation

HRID 565769 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([C:15]2[CH:20]=[CH:19][C:18]([F:21])=[CH:17][CH:16]=2)[N:9]2[CH2:14][CH2:13][NH:12][CH2:11][CH2:10]2)=[CH:4][CH:3]=1.[OH:22][CH2:23][CH2:24][NH:25][S:26]([CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34]Cl)(=[O:28])=[O:27]>C(N(C(C)C)C(C)C)C>[OH:22][CH2:23][CH2:24][NH:25][S:26]([CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][N:12]1[CH2:11][CH2:10][N:9]([CH:8]([C:5]2[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=2)[C:15]2[CH:20]=[CH:19][C:18]([F:21])=[CH:17][CH:16]=2)[CH2:14][CH2:13]1)(=[O:28])=[O:27]

Participants

4

Reactant 2

HCID 1529321-(Bis(4-fluorophenyl)methyl)piperazineHCID 22111640N-(2-hydroxyethyl)-6-chlorohexanesulfonamide

Product 1

HCID 22111597N-(2-hydroxyethyl)-6-[4-[bis(4-fluorophenyl)methyl]-1-piperazinyl]hexanesulfonamideYield 92.3%

Reagents, catalysts & solvents 1

HCID 81531DiisopropylethylamineSolvent

Procedure

1-[Bis(4-fluorophenyl)methyl]piperazine (576.7 mg, 2.00 mmol) and N-(2-hydroxyethyl)-6-chlorohexanesulfonamide (487.5 mg, 2.00 mmol) were refluxed in N-ethyldiisopropylamine (2 ml) for 6 hours. The reaction mixture was concentrated in vacuo, and water was added thereto. The mixture was extracted with chloroform. The chloroform layer was washed with water, and dried over anhydrous magnesium sulfate. Subsequently, the solvent was removed by evaporation in vacuo. The resulting crude product was purified by column chromatography on silica gel with chloroform-methanol (20:1), to give N-(2-hydroxyethyl)-6-[4-[bis(4-fluorophenyl)methyl]-1-piperazinyl]hexanesulfonamide (915.2 mg) as a pale yellow oil (92.3%).

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo, and water
  2. additionwas added
  3. extractionThe mixture was extracted with chloroform
  4. washThe chloroform layer was washed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customSubsequently, the solvent was removed by evaporation in vacuo
  7. customThe resulting crude product was purified by column chromatography on silica gel with chloroform-methanol (20:1)

Sources & evidence

ORD record
ord-c87f45706dc24246a8e7e3496dc35a8c
Source dataset
uspto-grants-2001_01
Patent number
US06172228B2

Reaction notes

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