New synthetic route to N-acyl-α-amino acids via amidocarbonylation by means of homogeneous binary catalyst systems
作者:Iwao Ojima、Kenji Hirai、Makoto Fujita、Takamasa Fuchikami
DOI:10.1016/0022-328x(85)87018-2
日期:1985.1
New catalytic processes which lead to the formation of N-acyl-α-amino acids promoted by homogeneous binary systems are described: (a) the isomerization-amidocarbonylation of allyllic alcohols catalyzed by transition metal binary systems, e.g., Co-Rh, Co-Pd, Co-Fe, giving various aliphatic N-acyl-α-amino acids; (b) the isomerization-amidocarbonylation of oxiranes catalyzed by cobalt-Lewis acid systems
描述了通过均相二元体系促进形成N-酰基-α-氨基酸的新催化过程:(a)过渡金属二元体系(例如Co-Rh,Co- Pd,Co-Fe,生成各种脂肪族N-酰基-α-氨基酸;(b)钴-刘易斯酸体系催化的环氧乙烷的异构化-酰胺羰基化反应,生成N-酰基-α-氨基酸:该方法对于由氧化苯乙烯合成N-乙酰基苯丙氨酸非常有效,并且(c)羰基的加氢甲酰化-酰胺基羰基化铑铑二元体系催化三氟丙烯生成N-乙酰基三氟缬氨酸具有优异的区域选择性和产率。讨论了这些新过程的可能机制。