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

HRID 856958Notes

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

Participants

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

extractionextracted it with methylene chloride several times
dry with materialdried over magnesium sulfate
filtrationfiltrated
customThe solution was evaporated under vacuum
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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