Ethyl Acetate → HCID 86062444, compound

HRID 1920512Notes

Reaction equation

[H-].[Na+].[F:3][C:4]([F:12])([F:11])[CH:5]([OH:10])[C:6]([F:9])([F:8])[F:7].Cl[C:14]1[CH:19]=[C:18]([CH3:20])[C:17]([N+:21]([O-:23])=[O:22])=[CH:16][N:15]=1.C(OCC)(=O)C>O1CCCC1.O>[CH3:20][C:18]1[C:17]([N+:21]([O-:23])=[O:22])=[CH:16][N:15]=[C:14]([O:10][CH:5]([C:6]([F:9])([F:8])[F:7])[C:4]([F:12])([F:11])[F:3])[CH:19]=1

Participants

Conditions

Temperature: 5 °C

Procedure

After 1.33 g of 60% sodium hydride was introduced to 15 ml of tetrahydrofuran and cooled to 5° C., 5.84 g of 1,1,1,3,3,3-hexafluoro-2-propanol was added dropwise. The mixture was stirred at 5° C. for 30 minutes, and then 3.0 g of 2-chloro-4-methyl-5-nitropyridine dissolved in 10 ml of tetrahydrofuran was added dropwise, this being stirred at room temperature for 3 hours. After being left at room temperature for 3 days, ethyl acetate and water were added thereto, and the organic layer was separated and washed with saturated brine. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. Thus obtained residue was purified by silica gel column chromatography (eluent:hexane:ethyl acetate=10:1) to give 4.5 g (yield 80%) of the title compound as a yellow oil.

Workup

additionwas added dropwise
stirringthis being stirred at room temperature for 3 hours
waitAfter being left at room temperature for 3 days
customthe organic layer was separated
washwashed with saturated brine
dry with materialThe organic layer was dried over anhydrous magnesium sulfate
distillationthe solvent was distilled off under reduced pressure
customThus obtained residue was purified by silica gel column chromatography (eluent:hexane:ethyl acetate=10:1)

Sources & evidence

ORD record: ord-7608625f78ba4bbd9cdaf5b69dcd92c7
Source dataset: uspto-grants-2012_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08168825B2

Reaction notes

Loading…