highly efficient cross-dehydrogenative-coupling (CDC) reaction between N-aryl glycine esters and imides or amides by the catalysis of a copper salt without the requirement of peroxide agents is described. The novel reaction provides a facile approach for the synthesis of α-substituted α-amino acid esters through C–H/N–H oxidative cross-coupling. A possible mechanism for the CDC reaction by using copper
描述了 N-芳基甘
氨酸酯与
酰亚胺或酰胺之间通过
铜盐催化的简单高效的交叉脱氢偶联 (CDC) 反应,无需过氧化物试剂。该新反应为通过 C-H/N-H 氧化交叉偶联合成 α-取代的
α-氨基酸酯提供了一种简便的方法。还提出了使用
铜作为催化剂和空气作为末端氧化剂进行CDC反应的可能机制。该合成方法具有收率好、操作简单、反应条件温和等优点。