Potassium Carbonate → HCID 58266729, compound

HRID 1505871Notes

Reaction equation

HRID 1505871 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8]Br)=[CH:4][CH:3]=1.[CH3:10][C@H:11]1[CH2:16][CH2:15][CH2:14][C@@H:13]([CH3:17])[NH:12]1.C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][N:12]2[C@H:13]([CH3:17])[CH2:14][CH2:15][CH2:16][C@@H:11]2[CH3:10])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 685274-Bromobenzyl bromideHCID 641768rel-(2R,6S)-2,6-Dimethylpiperidine

Product 1

HCID 58266729HCID 58266729, compoundYield 82.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A mixture of 1-bromo-4-bromomethylbenzene (500 mg, 2.0 mmol), cis-2,6-dimethylpiperidine (0.30 mL, 2.2 mmol) and potassium carbonate (332 mg, 2.4 mmol) in acetonitrile (20 mL) was heated under reflux for 2 h. The reaction mixture was allowed to cool to ambient temperature, the solid removed by filtration and the filtrate evaporated in vacuo. The resultant residue was partitioned between ethyl acetate (100 mL) and water (25 mL). The organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to give the title compound as a pale brown oil (464 mg, 82%). 1H NMR (CDCl3, 300 MHz): 7.40 (d, J=8.3 Hz, 2H), 7.27 (d, J=7.0 Hz, 2H), 3.71 (s, 2H), 2.56-2.36 (m, 2H), 1.68-1.61 (m, 1H), 1.61-1.47 (m, 2H), 1.33-1.24 (m, 3H), 1.01 (d, J=6.2 Hz, 6H). LCMS (Method B): RT=0.8 min, M+H+=282/284.

Workup

  1. temperaturewas heated
  2. temperatureunder reflux for 2 h
  3. customthe solid removed by filtration
  4. customthe filtrate evaporated in vacuo
  5. customThe resultant residue was partitioned between ethyl acetate (100 mL) and water (25 mL)
  6. dry with materialThe organic phase was dried over anhydrous sodium sulfate
  7. filtrationfiltered
  8. customevaporated in vacuo

Sources & evidence

ORD record
ord-a11f0618d092422680ff8d22dba5ea9f
Source dataset
uspto-grants-2015_12
Patent number
US09216980B2

Reaction notes

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