Sodium Carbonate → 3-[4-(3-Methoxyphenyl)-2,6-dimethylphenoxymethyl]-1-methylpiperidine

HRID 1384990Notes

Reaction equation

HRID 1384990 reaction equation
Br[C:2]1[CH:16]=[C:15]([CH3:17])[C:5]([O:6][CH2:7][CH:8]2[CH2:13][CH2:12][CH2:11][N:10]([CH3:14])[CH2:9]2)=[C:4]([CH3:18])[CH:3]=1.[CH3:19][O:20][C:21]1[CH:22]=[C:23](B(O)O)[CH:24]=[CH:25][CH:26]=1.C(=O)([O-])[O-].[Na+].[Na+]>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:19][O:20][C:21]1[CH:26]=[C:25]([C:2]2[CH:16]=[C:15]([CH3:17])[C:5]([O:6][CH2:7][CH:8]3[CH2:13][CH2:12][CH2:11][N:10]([CH3:14])[CH2:9]3)=[C:4]([CH3:18])[CH:3]=2)[CH:24]=[CH:23][CH:22]=1

Participants

6

Conditions

Temperature
100 °C

Procedure

To a solution of 3-(4-bromo-2,6-dimethylphenoxymethyl)-1-methylpiperidine (531 mg, 1.70 mmol) in toluene (10 mL) was added 3-methoxyphenylboronic acid (319 mg, 2.10 mmol), tetrakis(triphenylphosphine)palladium(0) (58 mg, 0.05 mmol), and 2M sodium carbonate (1.7 mL, 3.4 mmol). The mixture was stirred at 100° C. overnight and cooled to room temperature. The solution was partitioned between water and ethyl acetate. The organic layer was washed twice with water, brine, and dried. The solvent was removed and the residue purified on silica gel, eluting with 5% methanol in dichloromethane containing 0.25% ammonium hydroxide, to give 3-[4-(3-methoxyphenyl)-2,6-dimethylphenoxymethyl]-1-methylpiperidine.

Workup

  1. temperaturecooled to room temperature
  2. customThe solution was partitioned between water and ethyl acetate
  3. washThe organic layer was washed twice with water, brine
  4. customdried
  5. customThe solvent was removed
  6. customthe residue purified on silica gel
  7. washeluting with 5% methanol in dichloromethane containing 0.25% ammonium hydroxide

Sources & evidence

ORD record
ord-4c53bb9c7e11401bbd173821a724f2c4
Source dataset
uspto-grants-2001_07
Patent number
US06262078B1

Reaction notes

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