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 2114701Notes

Reaction equation

HRID 2114701 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-4dc1924d82054435b1b5d0003fe798c9
Source dataset
uspto-grants-2008_10
Patent number
US07435729B2

Reaction notes

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