(2S)-3-(4-benzyloxy-2-ethyl-phenyl)-2-ethoxy-propionic acid methyl ester → (2S)-2-ethoxy-3-(2-ethyl-4-hydroxy-phenyl)-propionic acid methyl ester

HRID 394266Notes

Reaction equation

HRID 394266 reaction equation
[CH3:1][O:2][C:3](=[O:25])[C@@H:4]([O:22][CH2:23][CH3:24])[CH2:5][C:6]1[CH:11]=[CH:10][C:9]([O:12]CC2C=CC=CC=2)=[CH:8][C:7]=1[CH2:20][CH3:21]>[Pd]>[CH3:1][O:2][C:3](=[O:25])[C@@H:4]([O:22][CH2:23][CH3:24])[CH2:5][C:6]1[CH:11]=[CH:10][C:9]([OH:12])=[CH:8][C:7]=1[CH2:20][CH3:21]

Participants

3

Reactant 1

HCID 68615927(2S)-3-(4-benzyloxy-2-ethyl-phenyl)-2-ethoxy-propionic acid methyl ester

Product 1

HCID 68617384(2S)-2-ethoxy-3-(2-ethyl-4-hydroxy-phenyl)-propionic acid methyl ester

Reagents, catalysts & solvents 1

HCID 23938PalladiumCatalyst

Procedure

In analogy to the procedure described in example 17 d], (2S)-3-(4-benzyloxy-2-ethyl-phenyl)-2-ethoxy-propionic acid methyl ester was hydrogenated over 10% palladium on charcoal to give (2S)-2-ethoxy-3-(2-ethyl-4-hydroxy-phenyl)-propionic acid methyl ester as colorless liquid.

Workup

  1. customdescribed in example 17 d

Sources & evidence

ORD record
ord-1aa1e01d722c4edd86bae2e425505829
Source dataset
uspto-grants-2004_10
Patent number
US06809110B2

Reaction notes

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