Triethylamine → ST088463

HRID 2414490Notes

Reaction equation

HRID 2414490 reaction equation
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)=[CH:6][CH:5]=1)([O-:3])=[O:2].C(N(CC)CC)C.[CH3:23][S:24](Cl)(=[O:26])=[O:25].C(=O)(O)[O-].[Na+]>ClCCl>[N+:1]([C:4]1[CH:5]=[CH:6][C:7]([N:10]2[CH2:15][CH2:14][N:13]([S:24]([CH3:23])(=[O:26])=[O:25])[CH2:12][CH2:11]2)=[CH:8][CH:9]=1)([O-:3])=[O:2]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 804471-(4-Nitrophenyl)piperazineHCID 516892Sodium Bicarbonate

Product 1

HCID 2834838ST088463Yield 99.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

1-(4-Nitrophenyl)piperazine (2.79 g, 13.5 mmol) was dissolved in dichloromethane (100 ml). Triethylamine (2.25 ml, 16.2 mmol) was added and the reaction was cooled to 0° C. Methanesulfonyl chloride (1.15 ml, 14.9 mmol) was added dropwise and the reaction was stirred at 0° C. for 1 h. Saturated sodium bicarbonate was added and the reaction was extracted (×3) with dichloromethane, dried (MgSO4), filtered and concentrated in vacuo to give 4-(4 nitrophenyl)-1-methylsulfonylpiperazine as a yellow solid (3.83 g, quantitative yield). GC/MS (EI, M+) m/z=285.

Workup

  1. extractionthe reaction was extracted (×3) with dichloromethane
  2. dry with materialdried (MgSO4)
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-40f32943465f4cadbe927d96d64a2a62
Source dataset
uspto-grants-2004_11
Patent number
US06812225B2

Reaction notes

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