4-(2,6-Dichloro-4-nitro-phenoxy)-2-(4-fluoro-benzenesulfonyl)-phenol → 4-(4-Amino-2,6-dichloro-phenoxy)-2-(4-fluoro-benzenesulfonyl)-phenol

HRID 432919Notes

Reaction equation

HRID 432919 reaction equation
[Cl:1][C:2]1[CH:25]=[C:24]([N+:26]([O-])=O)[CH:23]=[C:22]([Cl:29])[C:3]=1[O:4][C:5]1[CH:10]=[CH:9][C:8]([OH:11])=[C:7]([S:12]([C:15]2[CH:20]=[CH:19][C:18]([F:21])=[CH:17][CH:16]=2)(=[O:14])=[O:13])[CH:6]=1>C(O)C.CCOC(C)=O.[Pd]>[NH2:26][C:24]1[CH:25]=[C:2]([Cl:1])[C:3]([O:4][C:5]2[CH:10]=[CH:9][C:8]([OH:11])=[C:7]([S:12]([C:15]3[CH:16]=[CH:17][C:18]([F:21])=[CH:19][CH:20]=3)(=[O:14])=[O:13])[CH:6]=2)=[C:22]([Cl:29])[CH:23]=1

Participants

5

Reactant 1

HCID 223448734-(2,6-Dichloro-4-nitro-phenoxy)-2-(4-fluoro-benzenesulfonyl)-phenol

Product 1

HCID 223449224-(4-Amino-2,6-dichloro-phenoxy)-2-(4-fluoro-benzenesulfonyl)-phenolYield 95.5%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 702EthanolSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 4-(2,6-dichloro-4-nitro-phenoxy)-2-(4-fluoro-benzenesulfonyl)-phenol (454 mg, 0.99 mmol) in a mixture of ethanol (10 mL) and EtOAc (20 mL) was added catalyst 10% Pd/C (100 mg). The mixture was hydrogenated under 45 psi at RT for 2 h. The mixture was filtered through Celite and concentrated to give the title compound of Step C (405 mg) as a solid. The title product of Step C was used in the next step without further purification. MS (APCl−) Calc.: 427.0, Found: 426.1 (M−1).

Workup

  1. filtrationThe mixture was filtered through Celite
  2. concentrationconcentrated

Sources & evidence

ORD record
ord-00c6a12ad5664c7ab35e8148b75a8a61
Source dataset
uspto-grants-2003_12
Patent number
US06664291B2

Reaction notes

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