HCID 58107428, compound → HCID 58107440, compound

HRID 873643Notes

Reaction equation

HRID 873643 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([OH:20])[C:9]2[CH:14]=[CH:13][C:12]([O:15][CH2:16][CH2:17][CH2:18][CH3:19])=[CH:11][CH:10]=2)=[CH:4][C:3]=1[S:21]([NH2:24])(=[O:23])=[O:22].CC(C)=O.OS(O)(=O)=O.O=[Cr](=O)=O>CC(C)=O.O>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:20])[C:9]2[CH:10]=[CH:11][C:12]([O:15][CH2:16][CH2:17][CH2:18][CH3:19])=[CH:13][CH:14]=2)=[CH:4][C:3]=1[S:21]([NH2:24])(=[O:23])=[O:22]

Participants

5

Reactant 2

HCID 58107428HCID 58107428, compoundHCID 131709961Jones' reagent

Product 1

HCID 58107440HCID 58107440, compound

Reagents, catalysts & solvents 2

HCID 180AcetoneSolventHCID 962WaterSolvent

Procedure

2-Chloro-5-[hydroxy-(4-butoxy-phenyl)-methyl]-benzenesulfonamide is dissolved in acetone (10 mL), and treated with a solution of Jones reagent (3 M in water, 0.91 mmol). The reaction is allowed to stir for 30 minutes. The reaction is diluted with water and extracted with dichloromethane. The organic phase is separated and concentrated in vacuo. The residue is purified by silica gel chromatography (gradient of ethyl acetate in hexanes 10-50%) affording 74 mg of the title compound. 1H NMR (CDCl3) δ 0.95 (t, 3H, J=7.31 Hz), 1.50 (m, 2H), 1.80 (m, 2H), 4.05 (t, 2H, J=6.48 Hz), 5.15 (s, 2H), 6.95 (d, 2H, J=9.04 Hz), 7.65 (d, 1H, J=8.22), 7.80 (d, 2H, J=9.04 Hz), 7.90 (dd, 1 h, J=1.88, 7.91), 8.45 (d, 1H, J=1.88). MS (m/z): 368 (M+1). CHN Calc C, 55.51; H, 4.93; N, 3.81. Found C, 55.47; H, 4.84; N, 3.63.

Workup

  1. extractionextracted with dichloromethane
  2. customThe organic phase is separated
  3. concentrationconcentrated in vacuo
  4. customThe residue is purified by silica gel chromatography (gradient of ethyl acetate in hexanes 10-50%)

Sources & evidence

ORD record
ord-161dfd222e7146038b1a25130b95ca09
Source dataset
uspto-grants-2015_03
Patent number
US08975439B2

Reaction notes

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