Potassium Carbonate → HCID 54182915, compound

HRID 357308Notes

Reaction equation

HRID 357308 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][C:3]=1[N+:9]([O-:11])=[O:10].[CH2:12]1[O:14][C@@H:13]1[CH2:15]OS(C1C=C([N+]([O-])=O)C=CC=1)(=O)=O.C([O-])([O-])=O.[K+].[K+]>CC(C)=O>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH2:15][C@H:13]2[O:14][CH2:12]2)=[CH:4][C:3]=1[N+:9]([O-:11])=[O:10]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 146490Benzenesulfonic acid, 3-nitro-, (2S)-2-oxiranylmethyl esterHCID 37588824-Amino-3-Nitrophenol

Product 1

HCID 54182915HCID 54182915, compoundYield 87%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

A solution of 4-amino-3-nitrophenol (2.54 g, 16.5 mmol) and (2S)-(+)-glycidyl 3-nitrobenzenesulfonate (4.27 g, 16.5 mmol) in 50 mL of acetone was treated with 1.1 equivalents of K2CO3 (2.50 g, 18.1 mmol) and stirred at reflux for 20 hours. The suspension was cooled to ambient temperature, concentrated in vacuo to dryness. The resulting solids were partitioned between chloroform and water, and the aqueous layer extracted with chloroform. The organic layers were combined and dried over MgSO4 and concentrated in vacuo to provide 3.0 g (87%) of an orange solid. TLC and NMR indicated >95% purity, so the material was used without further purification. NMR.

Workup

  1. temperatureat reflux for 20 hours
  2. concentrationconcentrated in vacuo to dryness
  3. customThe resulting solids were partitioned between chloroform and water
  4. extractionthe aqueous layer extracted with chloroform
  5. dry with materialdried over MgSO4
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-d48c306abb7241d58d4fe093805e628e
Source dataset
uspto-grants-1998_11
Patent number
US05840738

Reaction notes

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