Potassium Carbonate → Methyl 4-(4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)benzyl)piperazine-2-carboxylate

HRID 1807777Notes

Reaction equation

HRID 1807777 reaction equation
Br[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]([OH:18])([C:14]([F:17])([F:16])[F:15])[C:10]([F:13])([F:12])[F:11])=[CH:5][CH:4]=1.C(=O)([O-])[O-].[K+].[K+].Cl.Cl.[NH:27]1[CH2:32][CH2:31][NH:30][CH2:29][CH:28]1[C:33]([O:35][CH3:36])=[O:34]>C(#N)C>[F:11][C:10]([F:13])([F:12])[C:9]([C:6]1[CH:7]=[CH:8][C:3]([CH2:2][N:30]2[CH2:31][CH2:32][NH:27][CH:28]([C:33]([O:35][CH3:36])=[O:34])[CH2:29]2)=[CH:4][CH:5]=1)([OH:18])[C:14]([F:17])([F:16])[F:15]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 2760425Methyl Piperazine-2-carboxylate DihydrochlorideHCID 235273962-[4-(Bromomethyl)phenyl]-1,1,1,3,3,3-hexafluoropropan-2-ol

Product 1

HCID 86638569Methyl 4-(4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)benzyl)piperazine-2-carboxylateYield 25.1%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

2-(4-(Bromomethyl)phenyl)-1,1,1,3,3,3-hexafluoropropan-2-ol (4.61 mmol, 1.553 g), potassium carbonate (13.82 mmol, 1.910 g) and methyl piperazine-2-carboxylate dihydrochloride (4.61 mmol, 1 g) were combined and stirred at room temperature overnight in acetonitrile (25 mL). The reaction mixture was filtered and the solid washed with ethyl acetate. The organic was concentrated under reduced pressure. The resulting residue was purified by silica column chromatography (eluant dichloromethane/methanol/ammonia 95/5/0.5) to afford the title compound (464 mg).

Workup

  1. filtrationThe reaction mixture was filtered
  2. washthe solid washed with ethyl acetate
  3. concentrationThe organic was concentrated under reduced pressure
  4. customThe resulting residue was purified by silica column chromatography (eluant dichloromethane/methanol/ammonia 95/5/0.5)

Sources & evidence

ORD record
ord-87d787044aec4f3b9858100da55ff0ef
Source dataset
uspto-grants-2013_01
Patent number
US08357679B2

Reaction notes

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