Acetic Acid → HCID 136051898, compound

HRID 1659687Notes

Reaction equation

HRID 1659687 reaction equation
[N+:1](=[CH2:3])=[N-].[C:4](O)(=[O:6])C.[CH:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.[C:14]([O:17][CH2:18]C)(=[O:16])C.CC[O:22]CC>>[CH3:4][O:6][N:1]=[C:3]([C:8]1[CH:13]=[CH:12][C:11]([OH:22])=[CH:10][CH:9]=1)[C:14]([O:17][CH3:18])=[O:16]

Participants

6

Reactant 5

HCID 176Acetic AcidHCID 241BenzeneHCID 3283Diethyl Ether2×HCID 8857Ethyl AcetateHCID 9550Diazomethane

Product 1

HCID 136051898HCID 136051898, compound

Procedure

This material was dissolved in ether (50 ml.) and a solution of diazomethane in ether was gradually added thereto under ice-cooling until the color of the mixture was changed to yellow. Acetic acid was immediately added thereto and the mixture was washed with a sodium bicarbonate aqueous solution and a saturated sodium chloride aqueous solution and dried over magnesium sulfate. Ether was distilled off to give oily residue (8 g.). The oily residue was subjected to column chromatography on silica gel using a mixture of benzene and ethyl acetate (9:1) as developing solvent to give methyl 2-methoxyimino-2-(4-hydroxyphenyl)acetate (syn isomer) (6.39 g.).

Workup

  1. temperatureunder ice-cooling until the color of the mixture
  2. washthe mixture was washed with a sodium bicarbonate aqueous solution
  3. dry with materiala saturated sodium chloride aqueous solution and dried over magnesium sulfate
  4. distillationEther was distilled off
  5. customto give oily residue (8 g.)

Sources & evidence

ORD record
ord-99415342126e4872a9df7e2dcb9174b7
Source dataset
uspto-grants-1981_12
Patent number
US04304770

Reaction notes

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