Sodium hydride → 4-((4'-Fluorospiro[benzo[d][1,3]dioxole-2,1'-cyclohexane]-4'-yl)methoxy)-3-nitrobenzenesulfonamide

HRID 574952Notes

Reaction equation

HRID 574952 reaction equation
[F:1][C:2]1([CH2:16][OH:17])[CH2:7][CH2:6][C:5]2([O:11][C:10]3[CH:12]=[CH:13][CH:14]=[CH:15][C:9]=3[O:8]2)[CH2:4][CH2:3]1.[H-].[Na+].F[C:21]1[CH:26]=[CH:25][C:24]([S:27]([NH2:30])(=[O:29])=[O:28])=[CH:23][C:22]=1[N+:31]([O-:33])=[O:32].[NH4+].[Cl-]>CN(C)C=O>[F:1][C:2]1([CH2:16][O:17][C:21]2[CH:26]=[CH:25][C:24]([S:27]([NH2:30])(=[O:29])=[O:28])=[CH:23][C:22]=2[N+:31]([O-:33])=[O:32])[CH2:3][CH2:4][C:5]2([O:8][C:9]3[CH:15]=[CH:14][CH:13]=[CH:12][C:10]=3[O:11]2)[CH2:6][CH2:7]1

Participants

6

Reactant 4

HCID 24758Sodium hydrideHCID 25517Ammonium ChlorideHCID 167824874-Fluoro-3-nitrobenzenesulfonamideHCID 67126697(4'-Fluorospiro[benzo[d][1,3]dioxole-2,1'-cyclohexane]-4'-yl)methanol

Product 1

HCID 671271814-((4'-Fluorospiro[benzo[d][1,3]dioxole-2,1'-cyclohexane]-4'-yl)methoxy)-3-nitrobenzenesulfonamide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of EXAMPLE 350C (495 mg) in N,N-dimethylformamide (6 mL) was added NaH (65% in mineral oil, 320 mg). The mixture was stirred for 30 minutes, and then 4-fluoro-3-nitrobenzenesulfonamide (457 mg) was added. The mixture was stirred overnight. The mixture was poured over aqueous NH4Cl and extracted with ethyl acetate (300 mL). The combined organic layers were washed with water, brine and dried over Na2SO4. After filtration and evaporation of the solvent, the residue was loaded on a silica gel cartridge and was eluted with 30% ethyl acetate in hexane to provide the title compound.

Workup

  1. stirringThe mixture was stirred overnight
  2. extractionextracted with ethyl acetate (300 mL)
  3. washThe combined organic layers were washed with water, brine
  4. dry with materialdried over Na2SO4
  5. filtrationAfter filtration and evaporation of the solvent
  6. washwas eluted with 30% ethyl acetate in hexane

Sources & evidence

ORD record
ord-e16f2598302b47b69ef6fdf254c319b5
Source dataset
uspto-grants-2015_05
Patent number
US09034875B2

Reaction notes

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