Synthesis of Unprotected 2-Arylglycines by Transamination of Arylglyoxylic Acids with 2-(2-Chlorophenyl)glycine
作者:Haruki Inada、Masatoshi Shibuya、Yoshihiko Yamamoto
DOI:10.1021/acs.joc.0c01302
日期:2020.9.4
The transamination of α-keto acids with 2-phenylglycine is an effective methodology for directly synthesizing unprotected α-amino acids. However, the synthesis of 2-arylglycines by transamination is problematic because the corresponding products, 2-arylglycines, transaminate the starting arylglyoxylic acids. Herein, we demonstrate the use of commercially available l-2-(2-chlorophenyl)glycine as the
用2-苯基甘氨酸对α-酮酸进行氨基转移是直接合成未保护的α-氨基酸的有效方法。但是,通过氨基转移合成2-芳基甘氨酸是有问题的,因为相应的产物2-芳基甘氨酸使起始的芳基乙醛酸发生氨基转移。在此,我们展示了使用可商购获得的升-2-(2-氯苯基)甘氨酸作为在arylglyoxylic酸氨基转移氮源,在不脱离不希望的自转移方法干扰产生相应的2-芳基甘氨酸。