Hydroxyamine hydrochloride → HCID 53722706, compound

HRID 342945Notes

Reaction equation

HRID 342945 reaction equation
C([O-])(=O)C.[Na+].Cl.[NH2:7]O.C(O[CH:12]=[C:13]([C:30]([C:32]1([CH3:35])[CH2:34][CH2:33]1)=[O:31])[C:14]([C:16]1[CH:21]=[CH:20][C:19]([S:22]([CH3:25])(=[O:24])=[O:23])=[CH:18][C:17]=1[C:26]([F:29])([F:28])[F:27])=[O:15])C>>[CH3:25][S:22]([C:19]1[CH:20]=[CH:21][C:16]([C:14]([C:13]2[CH:12]=[N:7][O:31][C:30]=2[C:32]2([CH3:35])[CH2:34][CH2:33]2)=[O:15])=[C:17]([C:26]([F:29])([F:28])[F:27])[CH:18]=1)(=[O:24])=[O:23]

Participants

4

Reactant 3

HCID 443297Hydroxyamine hydrochlorideHCID 517045Sodium AcetateHCID 54056056HCID 54056056, compound

Product 1

HCID 53722706HCID 53722706, compoundYield 90.3%

Procedure

Sodium acetate (1.0 g) was added to a stirring mixture of hydroxylamine hydrochloride (0.85 g) and 2-ethoxymethylene-1-(4-methylsulphonyl-2-trifluoromethylphenyl)-3-(1-methylcyclopropyl)propane-1,3-dione (4.2 g) in industrial methylated spirit (200 ml). The mixture was stirred at room temperature for 3 hours. The mixture was evaporated to dryness and then suspended in ethyl acetate (100 ml). The resultant suspension was washed with water (100 ml), dried (anhydrous magnesium sulphate) and filtered. The filtrate was evaporated to dryness to give 4-(4-methylsulphonyl-2-trifluoromethylbenzoyl)-5-(1-methylcyclopropyl)isoxazole (compound 99, 3.5 g) as a white solid, m.p. 141°-142° C.

Workup

  1. customThe mixture was evaporated to dryness
  2. washThe resultant suspension was washed with water (100 ml)
  3. dry with materialdried (anhydrous magnesium sulphate)
  4. filtrationfiltered
  5. customThe filtrate was evaporated to dryness

Sources & evidence

ORD record
ord-cd9f91b03395426187f05ab4de41fa2d
Source dataset
uspto-grants-1999_01
Patent number
US05859283

Reaction notes

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