Selective Catalytic Hydrogenation of γ-Amino α,β-Unsaturated Esters in the Presence of Hydrogenable Protecting Groups
作者:Domenico Misiti、Giovanni Zappia、Giuliano Delle Monache
DOI:10.1055/s-1999-3471
日期:1999.5
The chemoselective catalytic hydrogenation of substituted γ-amino α,β-unsaturated esters bearing benzyl ether, benzyl ester functionalities and N-Cbz protecting groups by 3% Pd/C in EtOAc was investigated. The results revealed a good selectivity for substrates with benzyl ethers and benzyl esters in the side chain and for α,β-unsaturated benzyl esters. Moderate selectivity was observed for substrates with N-Cbz protecting group.