Dimethylformamide → HCID 75061513, compound

HRID 1994866Notes

Reaction equation

HRID 1994866 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][N:9]=[C:10]([CH3:16])[C:11]([O:13][CH2:14][CH3:15])=[O:12])=[C:4]([N+:17]([O-:19])=[O:18])[CH:3]=1.CI.[C:22](=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH3:22][O:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][N:9]=[C:10]([CH3:16])[C:11]([O:13][CH2:14][CH3:15])=[O:12])=[C:4]([N+:17]([O-:19])=[O:18])[CH:3]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 6328Methyl iodideHCID 11430Potassium CarbonateHCID 76540792HCID 76540792, compound

Product 1

HCID 75061513HCID 75061513, compoundYield 89%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of ethyl 2-[(4-hydroxy-2-nitrophenyl)hydrazono]propanoate (30 g), methyl iodide (21.3 g), potassium carbonate (21 g) and N,N-dimethylformamide (300 mL) was stirred at room temperature for 2 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with 1N hydrochloric acid and saturated brine, dried (MgSO4), and concentrated. The obtained residue was crystallized from diethyl ether to give the title compound (28 g, yield 89%) as orange crystals. MS: 282 (MH+).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with 1N hydrochloric acid and saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. customThe obtained residue was crystallized from diethyl ether

Sources & evidence

ORD record
ord-9845bb31697b4f42b98a63cbc2fd1581
Source dataset
uspto-grants-2010_01
Patent number
US07652133B2

Reaction notes

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