Stereocontrolled approach to δ-amino acids by asymmetric hydrogenation of 5-acetylaminopent-4-enoic acid derivatives
作者:E. V. Starodubtseva、O. V. Turova、O. M. Antipova、M. G. Vinogradov、Zh. R. Sagirova、O. R. Malyshev、M. I. Struchkova
DOI:10.1007/s11172-010-0263-4
日期:2010.7
Asymmetric hydrogenation of the C=C bond in 5-acetylamino-5-phenylpent-4-enoic acid methyl ester or N,N-dimethylamide catalyzed by rhodium complexes with chiral bisphosphine ligands (1 mol.% of the catalyst, 20 atm. of H2, MeOH, 50 °C) gives the corresponding saturated derivatives with enantioselectivity up to 40% ??.
5-乙酰氨基-5-苯基戊-4-烯酸甲酯或N,N-二甲基酰胺中C=C键的不对称氢化由铑配合物与手性双膦配体催化(催化剂的1 mol%,20 atm. H2, MeOH, 50 °C) 得到相应的饱和衍生物,对映选择性高达 40%??。