Dimethylformamide → (R)-1-(2-methyl-2-oxiranylmethyl)-4-nitro-2-(2-nitrophenylthio)imidazole

HRID 1158306Notes

Reaction equation

HRID 1158306 reaction equation
[N+:1]([C:4]1[N:5]=[C:6]([S:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[N+:16]([O-:18])=[O:17])[NH:7][CH:8]=1)([O-:3])=[O:2].[CH3:19]N(C)C=O.C(=O)([O-])[O-].[K+].[K+].[F-].[Cs+].[C:32]([O:35][CH2:36][CH3:37])(=O)C>O>[CH3:19][C@@:36]1([CH2:37][N:7]2[CH:8]=[C:4]([N+:1]([O-:3])=[O:2])[N:5]=[C:6]2[S:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[N+:16]([O-:18])=[O:17])[CH2:32][O:35]1

Participants

7

Reactant 5

HCID 6228DimethylformamideHCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 25953Cesium fluorideHCID 178526858HCID 178526858, compound

Product 1

HCID 86604372(R)-1-(2-methyl-2-oxiranylmethyl)-4-nitro-2-(2-nitrophenylthio)imidazoleYield 79%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

4-Nitro-2-(2-nitrophenylthio)imidazole (100 mg) and N,N-dimethylformamide (0.5 ml) suspension of 2-methyl-2-oxiranylmethyl(S)-4-nitrobenzenesulfonate (119 mg), potassium carbonate (71 mg) and cesium fluoride (11 mg) were stirred at a room temperature for 3.5 days. Water and ethyl acetate were added to the reaction mixture and the organic layer was taken by separation. The ethyl acetate layer was washed with water and an aqueous solution being saturated with sodium chloride, then dried over anhydrous sodium sulfate. The residue obtained by removal of the solvent by distillation was purified by use of a basic silica gel column chromatography (eluent: n-hexane/ethyl acetate=11/9 to 1/1), then there was obtained (R)-1-(2-methyl-2-oxiranylmethyl)-4-nitro-2-(2-nitrophenylthio)imidazole (102 mg, yield: 79%) as yellow powder product.

Workup

  1. customthe organic layer was taken by separation
  2. washThe ethyl acetate layer was washed with water
  3. dry with materialdried over anhydrous sodium sulfate
  4. customThe residue obtained by removal of the solvent by distillation
  5. customwas purified by use of a basic silica gel column chromatography (eluent: n-hexane/ethyl acetate=11/9 to 1/1)

Sources & evidence

ORD record
ord-1c9b55c8b74847b1b0b4bbc18660af77
Source dataset
uspto-grants-2010_10
Patent number
US07807843B2

Reaction notes

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