Ceric ammonium nitrate → 5-(5,6-Dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-(3-pyridylmethyloxy)benzoic Acid

HRID 1830271Notes

Reaction equation

HRID 1830271 reaction equation
C[O:2][C:3]1[C:4]([CH3:33])=[C:5]([C:24]([O:31]C)=[C:25]([O:29][CH3:30])[C:26]=1[O:27][CH3:28])[CH2:6][C:7]1[CH:8]=[CH:9][C:10]([O:16][CH2:17][C:18]2[CH:19]=[N:20][CH:21]=[CH:22][CH:23]=2)=[C:11]([CH:15]=1)[C:12]([OH:14])=[O:13].O=[N+]([O-])[O-].[O-][N+](=O)[O-].[O-][N+](=O)[O-].[O-][N+](=O)[O-].[O-][N+](=O)[O-].[O-][N+](=O)[O-].[Ce+4].[NH4+].[NH4+]>C(#N)C.O>[CH3:28][O:27][C:26]1[C:3](=[O:2])[C:4]([CH3:33])=[C:5]([CH2:6][C:7]2[CH:8]=[CH:9][C:10]([O:16][CH2:17][C:18]3[CH:19]=[N:20][CH:21]=[CH:22][CH:23]=3)=[C:11]([CH:15]=2)[C:12]([OH:14])=[O:13])[C:24](=[O:31])[C:25]=1[O:29][CH3:30]

Participants

5

Reactant 2

HCID 180504Ceric ammonium nitrateHCID 22054334HCID 22054334, compound

Product 1

HCID 220541715-(5,6-Dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-(3-pyridylmethyloxy)benzoic AcidYield 76%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 6342AcetonitrileSolvent

Procedure

5-(3,4,5,6-Tetramethoxy-2-methylbenzyl)-2-(3-pyridylmethyloxy)benzoic acid (0.100 g, 0.221 mmol) was dissolved in a mixed solution of acetonitrile (9 ml) and water (3 ml) and after adding thereto CAN (0.303 g, 0.552 mmol) at room temperature, the solution was stirred at room temperature for 1 hour. The reaction solution was diluted with water and then extracted with ether. The extract was washed with water and then dried, and the solvent was removed by distillation. The residue was purified by silica gel column chromatography (chloroform:methanol=1:2) and then recrystallized from ether to obtain the titled compound (0.071 g, 0.168 mmol, 76%).

Workup

  1. additionafter adding
  2. extractionextracted with ether
  3. washThe extract was washed with water
  4. customdried
  5. customthe solvent was removed by distillation
  6. customThe residue was purified by silica gel column chromatography (chloroform:methanol=1:2)
  7. customrecrystallized from ether

Sources & evidence

ORD record
ord-f491443f5fbd4f4bb9ab8a7bf3eed1e2
Source dataset
uspto-grants-2006_06
Patent number
US07064124B2

Reaction notes

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