Methanesulfonyl chloride → N-(4-bromo-2-ethylphenyl)methanesulfonamide

HRID 1438256

Reaction equation

HRID 1438256 reaction equation
[Br:1][C:2]1[CH:8]=[CH:7][C:5]([NH2:6])=[C:4]([CH2:9][CH3:10])[CH:3]=1.[CH3:11][S:12](Cl)(=[O:14])=[O:13]>N1C=CC=CC=1.CCOC(C)=O>[Br:1][C:2]1[CH:8]=[CH:7][C:5]([NH:6][S:12]([CH3:11])(=[O:14])=[O:13])=[C:4]([CH2:9][CH3:10])[CH:3]=1

Participants

5

Reactant 2

HCID 31297Methanesulfonyl chlorideHCID 28012834-Bromo-2-ethylaniline

Product 1

HCID 6469152N-(4-bromo-2-ethylphenyl)methanesulfonamideYield 81%

Reagents, catalysts & solvents 2

HCID 1049PyridineSolventHCID 8857Ethyl AcetateSolvent

Procedure

4-Bromo-2-ethyl-aniline (2 mL, 14 mmol) dissolved in anhydrous pyridine (35 mL) at toom temperature was treated with methylsulfonyl chloride (1.3 mL, 16.8 mmol). The reaction was stirred at that temperature for 15 hours before it was diluted with EtOAc. The mixture was washed with H2O, brine and dried over MgSO4. The solvent was removed in vacuo and the residue was purified with flash chromatography (SiO2, 5-30% EtOAc in hexanes) to afford the desired product (3.1 g, 81% yield). 1H NMR (300 MHz, CDCl3): δ 1.25 (t, J=7.5 Hz, 3H), 2.61-2.68 (m, 2H), 3.02 (s, 3H), 6.36 (s, 1H), 7.36-7.39 (m, 3H).

Workup

  1. washThe mixture was washed with H2O, brine
  2. dry with materialdried over MgSO4
  3. customThe solvent was removed in vacuo
  4. customthe residue was purified with flash chromatography (SiO2, 5-30% EtOAc in hexanes)

Sources & evidence

ORD record
ord-9c70824790b34602ac8ec277be79b043
Source dataset
uspto-grants-2009_11
Patent number
US07622605B2

Linked notes

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