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

Beteiligte Stoffe

Reaktionsschritte

A solution of (2S)-3-(4-benzyloxy-2-methyl-phenyl)-2-ethoxy-propionic acid methyl ester (3.6 g, 11 mmol) in methanol (300 ml) was hydrogenated over 10% palladium on charcoal (1 g) at ambient temperature for 2 h. The catalyst was filtered off and the solvent evaporated under reduced pressure to give 2 g (8.4 mmol, 77%) of the title compound as yellow liquid which was used in the next step without further purification.

Herkunft & Nachweise