Acetaminophen → HCID 7642407, compound

HRID 1597772Notes

Reaction equation

HRID 1597772 reaction equation
[H-].[Na+].[C:3]([NH:6][C:7]1[CH:12]=[CH:11][C:10]([OH:13])=[CH:9][CH:8]=1)(=[O:5])[CH3:4].Br[CH2:15][C:16]1[S:17][C:18]2[CH:24]=[CH:23][CH:22]=[CH:21][C:19]=2[N:20]=1>CN(C)C=O.C(OCC)(=O)C>[S:17]1[C:18]2[CH:24]=[CH:23][CH:22]=[CH:21][C:19]=2[N:20]=[C:16]1[CH2:15][O:13][C:10]1[CH:11]=[CH:12][C:7]([NH:6][C:3](=[O:5])[CH3:4])=[CH:8][CH:9]=1

Participants

6

Reactant 3

HCID 1983AcetaminophenHCID 24758Sodium hydrideHCID 27762582-(Bromomethyl)-1,3-benzothiazole

Product 1

HCID 7642407HCID 7642407, compoundYield 84%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolvent2×HCID 8857Ethyl AcetateSolvent

Procedure

0.24 g of sodium hydride (as a 60% w/w dispersion in mineral oil) were added to a solution of 133.9 mg of 4-acetamidophenol in 2.7 ml of dimethylformamide, followed by the addition of a solution of 205.6 mg of 2-bromomethylbenzothiazole in 2 ml of dimethylformamide. The resulting mixture was stirred at room temperature for 7 hours, after which the reaction mixture was diluted with ethyl acetate, washed with water, tried over sodium sulfate and the solvent removed by evaporation under reduced pressure. The resulting residue was purified by column chromatography through silica gel, using a 1:2 by volume mixture of hexane and ethyl acetate as the eluent, to give 221.1 mg (yield 84%) of the title compound as a solid having a melting point of 168 to 170° C.

Workup

  1. washwashed with water
  2. customthe solvent removed by evaporation under reduced pressure
  3. customThe resulting residue was purified by column chromatography through silica gel
  4. additionby volume mixture of hexane and ethyl acetate as the eluent

Sources & evidence

ORD record
ord-ac86ee3893014ef0a27a8291e346c7d2
Source dataset
uspto-grants-1998_04
Patent number
US05736487

Reaction notes

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