2-Nitrobenzenesulfonyl chloride → HCID 54042854, compound

HRID 442982Notes

Reaction equation

HRID 442982 reaction equation
O.[C:2]1([OH:10])[CH:9]=[C:7]([CH3:8])[CH:6]=[C:4]([OH:5])[CH:3]=1.[N+:11]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[S:20](Cl)(=[O:22])=[O:21])([O-:13])=[O:12]>C([O-])(O)=O.[Na+].C(OCC)C.O>[CH3:8][C:7]1[CH:9]=[C:2]([O:10][S:20]([C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][C:14]=2[N+:11]([O-:13])=[O:12])(=[O:21])=[O:22])[CH:3]=[C:4]([OH:5])[CH:6]=1

Participants

6

Reactant 2

HCID 155402-Nitrobenzenesulfonyl chlorideHCID 3083941Resorcinol, 5-methyl-, monohydrate

Product 1

HCID 54042854HCID 54042854, compoundYield 73%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 3283Diethyl EtherSolventHCID 516892Sodium BicarbonateSolvent

Procedure

Orcinol monohydrate (4.27 g, 30.0 mmol) and 2-nitrobenzenesulfonyl chloride (6.65 g, 30.0 mmol) were mixed in saturated aqueous NaHCO3 (100 mL) and diethyl ether (100 mL). The biphasic mixture was stirred vigorously at ambient temperature overnight. The reaction mixture was diluted with water (150 mL) and extracted into ethyl acetate (3×100 mL). The organic phase was washed with brine (2×100 mL) and dried over Na2SO4. After removing the solvent in vacuo, the residue was purified by flash column chromatography (dichloromethane to 5% ethyl acetate in dichloromethane) to give the title compound as a pale yellow solid (6.10 g, 73%). 1H-NMR (300 MHz, CDCl3) δ 8.09 (d, J=7.8 Hz, 1H), 7.85 (m, 2H), 7.71 (m, 1H), 6.62 (s, 1H), 6.59 (s, 1H), 6.51 (s, 1H), 5.06 (s, 1H), 2.26 (s, 3H).

Workup

  1. extractionextracted into ethyl acetate (3×100 mL)
  2. washThe organic phase was washed with brine (2×100 mL)
  3. dry with materialdried over Na2SO4
  4. customAfter removing the solvent in vacuo
  5. customthe residue was purified by flash column chromatography (dichloromethane to 5% ethyl acetate in dichloromethane)

Sources & evidence

ORD record
ord-152a076a19bb4b9290569ef20a5bedec
Source dataset
uspto-grants-1999_04
Patent number
US05891909

Reaction notes

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