6-Methoxy-2-(methylethyl)-1-[4-(phenylmethoxy)benzyl]-1,2,3,4-tetrahydroisoquinoline → 6-Methoxy-2-(methylethyl)-1-(4-hydroxybenzyl)-1,2,3,4-tetrahydroisoquinoline

HRID 2304648Notes

Reaction equation

HRID 2304648 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[CH:9]([CH2:13][C:14]1[CH:19]=[CH:18][C:17]([O:20]CC3C=CC=CC=3)=[CH:16][CH:15]=1)[N:8]([CH:28]([CH3:30])[CH3:29])[CH2:7][CH2:6]2>C(O)(=O)C.C(OCC)(=O)C.[Pd]>[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[CH:9]([CH2:13][C:14]1[CH:19]=[CH:18][C:17]([OH:20])=[CH:16][CH:15]=1)[N:8]([CH:28]([CH3:30])[CH3:29])[CH2:7][CH2:6]2

Participants

5

Reactant 1

HCID 234408396-Methoxy-2-(methylethyl)-1-[4-(phenylmethoxy)benzyl]-1,2,3,4-tetrahydroisoquinoline

Product 1

HCID 234407376-Methoxy-2-(methylethyl)-1-(4-hydroxybenzyl)-1,2,3,4-tetrahydroisoquinolineYield 91%

Reagents, catalysts & solvents 3

HCID 176Acetic AcidCatalystHCID 23938PalladiumCatalystHCID 8857Ethyl AcetateSolvent

Procedure

A suspension of 6-methoxy-2-(methylethyl)-1-[4-(phenylmethoxy)benzyl]-1,2,3,4-tetrahydroisoquinoline (0.3 g, 0.75 mmol), palladium (10% wt) on activated carbon (0.06 g) and acetic acid (5 drops) in ethyl acetate (10 mL) was stirred under hydrogen overnight. The reaction was filtered and concentrated to provide the title compound (0.212 g, 91% yield): ES-MS (m/z) 312 [M+H]+.

Workup

  1. filtrationThe reaction was filtered
  2. concentrationconcentrated

Sources & evidence

ORD record
ord-2322180a350b44ceb141524c3d3b3a84
Source dataset
uspto-grants-2002_08
Patent number
US06436923B1

Reaction notes

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