Hydrochloric Acid → HCID 57969005, compound

HRID 1255613Notes

Reaction equation

HRID 1255613 reaction equation
[C:1]([C:3]1[CH:19]=[CH:18][C:6]([O:7][C:8]2[CH:9]=[CH:10][C:11]3[B:15]([OH:16])[O:14][CH2:13][C:12]=3[CH:17]=2)=[CH:5][C:4]=1[C:20]([O:22][CH3:23])=[O:21])#[N:2].[OH-:24].[Na+].Cl>CO>[C:1]([C:3]1[CH:19]=[CH:18][C:6]([O:7][C:8]2[CH:9]=[CH:10][C:11]3[B:15]([OH:16])[O:14][CH2:13][C:12]=3[CH:17]=2)=[CH:5][C:4]=1[C:20]([O:22][CH3:23])=[O:21])(=[O:24])[NH2:2]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 67440088HCID 67440088, compound

Product 1

HCID 57969005HCID 57969005, compoundYield 19%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of 5-(4-Cyano-3-methoxycarbonylphenoxy)-1-hydroxy-2,1-benzoxaborole (5.25 g, 17.0 mmol) and 1 M NaOH (50 mL) in methanol (150 mL) was stirred at room temperature for 1 h. The mixture was acidified with 6 M HCl and extracted with ethyl acetate. The organic layer was washed with brine and dried on anhydrous sodium sulfate. The solvent was removed under reduced pressure and the residue was purified by silica gel chromatography (ethyl acetate) followed by trituration with diisopropyl ether to give 5-(4-Carbamoyl-3-methoxycarbonylphenoxy)-1-hydroxy-2,1-benzoxaborole (1.09 g, 19%)

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with brine
  3. dry with materialdried on anhydrous sodium sulfate
  4. customThe solvent was removed under reduced pressure
  5. customthe residue was purified by silica gel chromatography (ethyl acetate)

Sources & evidence

ORD record
ord-c4e1c9333b6e470db0a3bdb99524b1d0
Source dataset
uspto-grants-2013_06
Patent number
US08461135B2

Reaction notes

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