Über die Stereochemie der Hydrogenolyse von N-Benzyl-Bindungen I. Die Hydrogenolyse von Derivaten der 2-Amino-2-phenyl-propionsäure.
作者:H. Dahn、J. A. Garbarino、C. O'Murchu
DOI:10.1002/hlca.19700530616
日期:——
The stereochemistry of the hydrogenolysis of benzyl-N bonds was studied using S(+)-2-dimethylamino-2-phenyl-propionic acid (I) and its derivatives, and R(−)-2-anilino-2-phenyl-propionic acid (II). The configuration of I was confirmed, that of II established by ORD. measurements, after transformation of the phenyl into cyclohexyl groups. On a palladium catalyst the hydrogenolysis of I, its methyl and
使用S(+)-2-二甲基氨基-2-苯基-丙酸(I)及其衍生物和R(-)-2-苯胺基-2-苯基-丙酸研究苄基N键氢解的立体化学酸(II)。确认了I的配置,ORD建立了II的配置。在苯基转化成环己基后进行测量。在钯催化剂上,I,其甲酯和乙酯以及其酰胺的氢解以72-99%的构型转化进行,II的氢进行至少66%的转化。I的季铵衍生物的酯的转化率与保留率(消旋化)一样多。