Sodium hydride → 4-((1,4-Dioxan-2-yl)methoxy)-3-nitrobenzenesulfonamide

HRID 2273752Notes

Reaction equation

HRID 2273752 reaction equation
[O:1]1[CH2:6][CH2:5][O:4][CH2:3][CH:2]1[CH2:7][OH:8].[H-].[Na+].F[C:12]1[CH:17]=[CH:16][C:15]([S:18]([NH2:21])(=[O:20])=[O:19])=[CH:14][C:13]=1[N+:22]([O-:24])=[O:23]>O1CCCC1>[O:1]1[CH2:6][CH2:5][O:4][CH2:3][CH:2]1[CH2:7][O:8][C:12]1[CH:17]=[CH:16][C:15]([S:18]([NH2:21])(=[O:20])=[O:19])=[CH:14][C:13]=1[N+:22]([O-:24])=[O:23]

Participants

5

Reactant 3

HCID 24758Sodium hydride2×HCID 12655091(1,4-Dioxan-2-yl)methanolHCID 167824874-Fluoro-3-nitrobenzenesulfonamide

Product 1

HCID 671264774-((1,4-Dioxan-2-yl)methoxy)-3-nitrobenzenesulfonamide

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

(1,4-Dioxan-2-yl)methanol (380 mg) in tetrahydrofuran (30 ml) was treated with sodium hydride (60%) (245 mg) at room temperature for 30 minutes. The reaction mixture was cooled in an ice bath and 4-fluoro-3-nitrobenzenesulfonamide (675 mg) was added. The resulting mixture was stirred at room temperature for 2 hours and another portion of sodium hydride (60%, 245 mg) was added. The reaction mixture was stirred overnight and quenched with ice water (3 ml). The cloudy mixture was filtered and the filtrate was concentrated. The residue was triturated with methanol to give the title compound.

Workup

  1. temperatureThe reaction mixture was cooled in an ice bath
  2. stirringThe reaction mixture was stirred overnight
  3. customquenched with ice water (3 ml)
  4. filtrationThe cloudy mixture was filtered
  5. concentrationthe filtrate was concentrated
  6. customThe residue was triturated with methanol

Sources & evidence

ORD record
ord-30b6a544a9714fd89ac6fd26db185c69
Source dataset
uspto-grants-2015_09
Patent number
US09125913B2

Reaction notes

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