Potassium Carbonate → 4-(Diphenylmethoxy)piperidinepropanol

HRID 1169112Notes

Reaction equation

HRID 1169112 reaction equation
[C:1]1([CH:7]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[O:8][CH:9]2[CH2:14][CH2:13][NH:12][CH2:11][CH2:10]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Br[CH2:22][CH2:23][CH2:24][OH:25].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[C:15]1([CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[O:8][CH:9]2[CH2:14][CH2:13][N:12]([CH2:22][CH2:23][CH2:24][OH:25])[CH2:11][CH2:10]2)[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 123083-Bromo-1-propanolHCID 30175844-Benzhydryloxypiperidine

Product 1

HCID 229892644-(Diphenylmethoxy)piperidinepropanol

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

2.67 g of 4-(diphenylmethoxy)piperidine was dissolved in 20 ml of N,N-dimethylformamide; 1.09 ml of 3-bromopropanol and 1.66 g of potassium carbonate were added, followed by stirring at room temperature for 40 hours. Ice water was added, followed by extraction with ethyl acetate; the extract was washed with saline, dried over magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography and eluted with ethyl acetate:methanol:triethylamine (90:10:1). The desired fraction was collected and concentrated to yield 2.32 g of the title compound.

Workup

  1. extractionfollowed by extraction with ethyl acetate
  2. washthe extract was washed with saline
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. washeluted with ethyl acetate:methanol:triethylamine (90:10:1)
  6. customThe desired fraction was collected
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-71aa2281f9aa4a368d4e23fa5fa24b5a
Source dataset
uspto-grants-2003_09
Patent number
US06627630B1

Reaction notes

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