HCID 59441905, compound → HCID 59442020, compound

HRID 1014372Notes

Reaction equation

HRID 1014372 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[N+:13]([O-])=O)[CH2:9][N:8]([CH:16]([CH3:19])[CH2:17][CH3:18])[CH2:7][CH2:6]2.[H][H]>C(OCC)(=O)C.[Pd].CO>[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[NH2:13])[CH2:9][N:8]([CH:16]([CH3:19])[CH2:17][CH3:18])[CH2:7][CH2:6]2

Participants

6

Reactant 2

HCID 59441905HCID 59441905, compoundHCID 178418361HCID 178418361, compound

Product 1

HCID 59442020HCID 59442020, compoundYield 96.1%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 887MethanolSolventHCID 8857Ethyl AcetateSolvent

Procedure

6-(methyloxy)-2-(1-methylpropyl)-7-nitro-1,2,3,4-tetrahydroisoquinoline (0.23 g, 0.87 mmol) was dissolved in ethyl acetate (5 mL), treated with 10% palladium on carbon (50 mg, Aldrich), and then diluted with methanol (10 mL). The mixture was stirred under 60 psi of hydrogen pressure for 16 h in a Fischer-Porter apparatus. The pressure was released, the reaction vessel evacuated, and back-filled with nitrogen twice. The mixture was filtered through celite and the filtrate was concentrated to provide 6-(methyloxy)-2-(1-methylpropyl)-1,2,3,4-tetrahydro-7-isoquinolinamine (196 mg, 96%). 1H NMR (400 MHz, CDCl3) δ ppm 0.90 (t, J=7.4 Hz, 3 H), 1.02 (d, J=6.6 Hz, 3 H), 1.28-1.40 (m, 1 H), 1.59-1.69 (m, 1 H), 2.56-2.75 (m, 5 H), 3.48-3.67 (m, 4 H), 3.77 (s, 3 H), 6.35 (s, 1 H), 6.47 (s, 1 H).

Workup

  1. customthe reaction vessel evacuated
  2. additionback-filled with nitrogen twice
  3. filtrationThe mixture was filtered through celite
  4. concentrationthe filtrate was concentrated

Sources & evidence

ORD record
ord-feae7e7919764cf38155c7e7562395e0
Source dataset
uspto-grants-2011_07
Patent number
US07981903B2

Reaction notes

Loading…