O-Methylhydroxylamine hydrochloride → HCID 86611475, compound

HRID 452507Notes

Reaction equation

HRID 452507 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:30]([F:33])([F:32])[F:31])[O:13][N:12]=[C:11]([C:14]3[CH:28]=[CH:27][C:17]([C:18]([NH:20][CH2:21][CH:22](OC)OC)=[O:19])=[C:16]([CH3:29])[CH:15]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1.Cl.[CH3:35][O:36][NH2:37]>C(OCC)(=O)C>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:30]([F:33])([F:32])[F:31])[O:13][N:12]=[C:11]([C:14]3[CH:28]=[CH:27][C:17]([C:18]([NH:20][CH2:21][CH:22]=[N:37][O:36][CH3:35])=[O:19])=[C:16]([CH3:29])[CH:15]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1

Participants

4

Reactant 2

HCID 521874O-Methylhydroxylamine hydrochlorideHCID 66785224HCID 66785224, compound

Product 1

HCID 86611475HCID 86611475, compoundYield 69.4%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

In a solution of 152 mg of 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-N-(2,2-dimethoxyethyl)-2-methyl benzoic acid amide (Compound of the present invention No. 5-083) synthesized similarly to Synthetic Example 5 in 14 ml of methaol-water (6:1) mixed solvent, 38 mg of methoxyamine hydrochloride was added, and stirred under reflux with heat for 8 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, diluted by adding 80 ml of ethyl acetate, washed with water (30 ml×2), and dehydrated with saturated sodium chloride aqueous solution and dried over anhydrous sodium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluated with ethylacetate-hexane (1:1), and 102 mg of the aimed product was obtained as colorless resinous substance.

Workup

  1. additionwas added
  2. temperatureunder reflux
  3. temperaturewith heat for 8 hours
  4. customAfter the completion of the reaction
  5. waitthe reaction mixture was left
  6. additiondiluted
  7. washwashed with water (30 ml×2)
  8. dry with materialdried over anhydrous sodium sulfate
  9. distillationthe solvent was distilled off under reduced pressure
  10. customThe residue was purified with silica gel column chromatography that

Sources & evidence

ORD record
ord-a7499d7d902b49ff92ee3ae6b0c12b2c
Source dataset
uspto-grants-2013_07
Patent number
US08492311B2

Reaction notes

Loading…