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Water → 1-Benzyl-1,2,3,4-tetrahydroquinolin-7-ol

HRID 856958
Notes
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Reaction equation

HRID 856958 reaction equation
[NH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([OH:11])[CH:9]=2)[CH2:4][CH2:3][CH2:2]1.Br[CH2:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[CH2:13]([N:1]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([OH:11])[CH:9]=2)[CH2:4][CH2:3][CH2:2]1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 939807-Quinolinol, 1,2,3,4-tetrahydro-

Product 1

HCID 218649361-Benzyl-1,2,3,4-tetrahydroquinolin-7-olYield 93%

Reagents, catalysts & solvents 1

HCID 6228
Dimethylformamide
Solvent

Conditions

Temperature
60 °C

Procedure

To a solution of 1,2,3,4-tetrahydro-quinolin-7-ol (200 mg, 1.34 mmol) from step 1 in anhydrous N,N-dimethyl-formamide (5 mL) was added bromomethyl-benzene (229 mg, 1.34 mmol), and potassium carbonate (556 mg, 4.02 mmol). The reaction mixture was stirred at 60° C. overnight. Added some water to the reaction mixture and extracted it with methylene chloride several times. The organic layer was combined, dried over magnesium sulfate, and filtrated. The solution was evaporated under vacuum. The crude residue was purified by MPLC (biotage) to afford 297 mg (93%) of the title compound. 1H-NMR (CDCl3) δ 7.35–7.20 (m, 5H), 6.81 (d, J=8.1 Hz, 1H), 6.05 (dd, J=7.8 Hz, 2.2 Hz, 1H), 5.98 (d, 2.5 Hz, 1H), 4.53 (bs, 1H), 4.44 (s, 2H), 3.34 (t, J=5.0 Hz, 2H), 2.73 (t, J=5.8 Hz, 2H), 1.98 (m, 2H); MS LC-MS (MH+=240.1), LC MS RT: 3.08 min.

Workup

  1. extractionextracted it with methylene chloride several times
  2. dry with materialdried over magnesium sulfate
  3. filtrationfiltrated
  4. customThe solution was evaporated under vacuum
  5. customThe crude residue was purified by MPLC (biotage)

Sources & evidence

ORD record
ord-4991693c00bd4ef788a9449c70dcdb7e
Source dataset
uspto-grants-2006_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07144885B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes