Diazomethane → Methyl 2-methoxyimino-2-(3-chloro-4-hydroxyphenyl)acetate

HRID 1278117Notes

Reaction equation

HRID 1278117 reaction equation
[CH3:1][O:2][N:3]=[C:4]([C:8]1[CH:13]=[CH:12][C:11]([OH:14])=[C:10]([Cl:15])[CH:9]=1)[C:5]([OH:7])=[O:6].[N+](=[CH2:18])=[N-]>>[CH3:1][O:2][N:3]=[C:4]([C:8]1[CH:13]=[CH:12][C:11]([OH:14])=[C:10]([Cl:15])[CH:9]=1)[C:5]([O:7][CH3:18])=[O:6]

Participants

3

Reactant 2

HCID 9550DiazomethaneHCID 1360939502-Methoxyimino-2-(3-chloro-4-hydroxyphenyl)acetic acid

Product 1

HCID 136176295Methyl 2-methoxyimino-2-(3-chloro-4-hydroxyphenyl)acetate

Procedure

2-Methoxyimino-2-(3-chloro-4-hydroxyphenyl)acetic acid (a mixture of syn and anti isomers) (7 g.) and diazomethane (1.5 g.) were reacted and the product was purified by column chromatography according to a similar manner to that of Preparation 5-3)(b) to give crystals of methyl 2-methoxyimino-2-(3-chloro-4-hydroxyphenyl)acetate (syn isomer) (3.0 g.).

Workup

  1. customwere reacted
  2. customthe product was purified by column chromatography
  3. customof Preparation 5-3)(b)

Sources & evidence

ORD record
ord-afa8122f462344e598d87a1b98c03985
Source dataset
uspto-grants-1981_07
Patent number
US04279818

Reaction notes

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