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.
研究了
乙酸乙酯中3%Pd/C对带有苄基醚、苄基酯官能团和N-Cbz保护基团的取代的γ-
氨基β,β-不饱和酯的
化学选择性催化加氢反应。结果表明,对侧链中带有苄基醚和苄基酯的底物以及γ,β-不饱和苄基酯具有良好的选择性。对带有N-Cbz保护基团的底物具有中等选择性。