Hydrochloric Acid → HCID 67440055, compound

HRID 1471478Notes

Reaction equation

HRID 1471478 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[OH:20])#[N:2].I[CH3:22].[H-].[Na+].Cl>O>[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[O:20][CH3:22])#[N:2]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 67327262HCID 67327262, compound

Product 1

HCID 67440055HCID 67440055, compoundYield 87.3%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a solution of 5-(4-cyano-3-hydroxyphenoxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaborole (100 mg, 0.375 mmol) and iodomethane (0.070 mL. 1.1 mmol) in 1V,N-dimethylformamide (10 mL) was added sodium hydride (60% oil dispersion, 45 mg, 1.1 mmol) at 0° C. under nitrogen atmosphere, and the mixture was stirred at room temperature for 2 h. Water and 1 M HCl were added and the mixture was 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 treated with hexane/diisopropyl ether to give 5-(4-cyano-3-methoxyphenoxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaborole (92 mg, 87%).

Workup

  1. extractionthe mixture was extracted 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. additionthe residue was treated with hexane/diisopropyl ether

Sources & evidence

ORD record
ord-b4a5e83417f8425ab241e846873e54e3
Source dataset
uspto-grants-2015_04
Patent number
US09012431B2

Reaction notes

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