Hydrochloric Acid → N-[5-chloro-2-(2-fluoro-6-methoxy-benzoyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide

HRID 419032Notes

Reaction equation

HRID 419032 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([N:19](COC)[S:20]([C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[CH:24]=2)(=[O:22])=[O:21])[C:5]([C:8](=[O:18])[C:9]2[C:14]([O:15][CH3:16])=[CH:13][CH:12]=[CH:11][C:10]=2[F:17])=[N:6][CH:7]=1.Cl>O.O1CCOCC1>[Cl:1][C:2]1[CH:3]=[C:4]([NH:19][S:20]([C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([F:31])([F:32])[F:30])[CH:24]=2)(=[O:22])=[O:21])[C:5]([C:8](=[O:18])[C:9]2[C:14]([O:15][CH3:16])=[CH:13][CH:12]=[CH:11][C:10]=2[F:17])=[N:6][CH:7]=1

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 57942244N-[5-chloro-2-(2-fluoro-6-methoxy-benzoyl)-pyridin-3-yl]-N-methoxymethyl-3-trifluoromethyl-benzenesulfonamide

Product 1

HCID 11540408N-[5-chloro-2-(2-fluoro-6-methoxy-benzoyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

N-[5-Chloro-2-(2-fluoro-6-methoxy-benzoyl)-pyridin-3-yl]-N-methoxymethyl-3-trifluoromethyl-benzenesulfonamide (180 mg, 0.313 mmol) was magnetically stirred in water (1.0 mL) and 4N HCl in dioxane (2.5 mL) and heated at 85° C. for 7 h. The reaction was subsequently concentrated and the residue was neutralized (pH 7) with aqueous sodium bicarbonate and extracted with EtOAc (3×80 mL). The extracts were dried (MgSO4), filtered, and chromatographed on silica gel using EtOAc-hexane (gradient, 0:100 to 50:50) to provide N-[5-chloro-2-(2-fluoro-6-methoxy-benzoyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide: MS m/z 489.1 (M+H); 511.0 (M+Na).

Workup

  1. concentrationThe reaction was subsequently concentrated
  2. extractionextracted with EtOAc (3×80 mL)
  3. dry with materialThe extracts were dried (MgSO4)
  4. filtrationfiltered
  5. customchromatographed on silica gel

Sources & evidence

ORD record
ord-371cef63200546b19cc746f7d1788e03
Source dataset
uspto-grants-2012_01
Patent number
US08093247B2

Reaction notes

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