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。