Water → 5,5-dimethyl-3-(3-ethoxy-1-methyl-5-trifluoromethyl-1H-pyrazol-4-ylmethylthio)-2-isoxazoline

HRID 1292771Notes

Reaction equation

C(=O)([O-])[O-].[K+].[K+].[CH2:7](I)[CH3:8].[CH3:10][C:11]1([CH3:29])[O:15][N:14]=[C:13]([S:16][CH2:17][C:18]2[C:19]([OH:28])=[N:20][N:21]([CH3:27])[C:22]=2[C:23]([F:26])([F:25])[F:24])[CH2:12]1.O>CN(C)C=O>[CH3:10][C:11]1([CH3:29])[O:15][N:14]=[C:13]([S:16][CH2:17][C:18]2[C:19]([O:28][CH2:7][CH3:8])=[N:20][N:21]([CH3:27])[C:22]=2[C:23]([F:26])([F:25])[F:24])[CH2:12]1

Participants

Conditions

Temperature: 50 °C

Procedure

0.20 g (1.3 mmoles) of anhydrous potassium carbonate and 0.20 g (1.5 mmoles) of ethyl iodide were added to a solution of 0.30 g (1.0 mmoles) of 5,5-dimethyl-3-(3-hydroxy-1-methyl-5-trifluoromethyl-1H-pyrazol-4-ylmethylthio)-2-isoxazoline dissolved in 10 ml of N,N-dimethylformamide. The mixture was stirred at 50° C. for 3 hours to give rise to a reaction. After the completion of the reaction, the reaction mixture was poured into water, followed by extraction with ethyl acetate. The resulting organic layer was washed with an aqueous sodium chloride solution and then dried over anhydrous magnesium sulfate. The resulting solution was subjected to vacuum distillation to remove the solvent contained therein, to obtain 0.30 g (yield: 92.0%) of intended 5,5-dimethyl-3-(3-ethoxy-1-methyl-5-trifluoromethyl-1H-pyrazol-4-ylmethylthio)-2-isoxazoline.

Workup

customto give rise
customto a reaction
customAfter the completion of the reaction
extractionfollowed by extraction with ethyl acetate
washThe resulting organic layer was washed with an aqueous sodium chloride solution
dry with materialdried over anhydrous magnesium sulfate
distillationThe resulting solution was subjected to vacuum distillation
customto remove the solvent

Sources & evidence

ORD record: ord-1b70304d3dd040ba806aeb37b8d091a9
Source dataset: uspto-grants-2007_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07238689B2

Reaction notes

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