Ethanol → HCID 18361492, compound

HRID 382975Notes

Reaction equation

HRID 382975 reaction equation
[ClH:1].Br[C:3]1[CH:25]=[CH:24][C:6]([CH2:7][O:8][C:9]2[CH:10]=[C:11]3[C:16](=[CH:17][CH:18]=2)[CH2:15][CH:14]([CH2:19][CH2:20][N:21]([CH3:23])[CH3:22])[CH2:13][CH2:12]3)=[CH:5][CH:4]=1.[C:26]1(C)[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.[CH2:33]([OH:35])C.[C:36](=O)([O-])[O-:37].[Na+].[Na+]>O.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[ClH:1].[CH3:36][O:37][C:26]1[CH:31]=[C:30]([O:35][CH3:33])[CH:29]=[CH:28][C:27]=1[C:3]1[CH:25]=[CH:24][C:6]([CH2:7][O:8][C:9]2[CH:10]=[C:11]3[C:16](=[CH:17][CH:18]=2)[CH2:15][CH:14]([CH2:19][CH2:20][N:21]([CH3:23])[CH3:22])[CH2:13][CH2:12]3)=[CH:5][CH:4]=1

Participants

7

Reactant 4

HCID 702EthanolHCID 1140TolueneHCID 10340Sodium CarbonateHCID 18361483(+)-6-(4-Bromobenzyl)oxy-2-[2-(N,N-dimethylamino)ethyl]tetralin hydrochloride

Product 1

HCID 18361492HCID 18361492, compound

Reagents, catalysts & solvents 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 962WaterSolvent

Procedure

A mixture of (+)-6-(4-bromobenzyl)oxy-2-[2-(N,N-dimethylamino)ethyl]tetralin hydrochloride (1 g), toluene (20 ml), ethanol (2.5 ml), and 2 M aqueous sodium carbonate (2.5 ml) was stirred at room temperature for 10 min. 2.4-Dimethoxybenzeneboric acid (557 mg) and tetrakis(triphenylphosphine) palladium (82 mg) were added and the reaction mixture was heated under reflux for 14 hr under argon. After cooling, the reaction mixture was diluted with water and extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried, and concentrated. The residue was purified by alumina column chromatography (eluent: ethyl acetate:hexane=1:20 to 1:5) and converted into its hydrochloride, which was then recrystallized from methanol-diisopropyl ether to obtain the titled compound (740 mg).

Workup

  1. temperaturethe reaction mixture was heated
  2. temperatureunder reflux for 14 hr under argon
  3. temperatureAfter cooling
  4. extractionextracted with ethyl acetate
  5. washThe organic layer was washed with saturated aqueous sodium chloride
  6. customdried
  7. concentrationconcentrated
  8. customThe residue was purified by alumina column chromatography (eluent: ethyl acetate:hexane=1:20 to 1:5)
  9. customwas then recrystallized from methanol-diisopropyl ether

Sources & evidence

ORD record
ord-60636eb7b5274064bbdfe92facba4904
Source dataset
uspto-grants-2001_10
Patent number
US06310107B1

Reaction notes

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