Preferential formation of amino acid esters in aqueous alcohol solutions: solvolysis of 6,6′-bis(aminoacylamino)-2,2′-bipyridine by metal coordination
作者:Koji Araki、Takashi Kuboki、Masaki Yamada、Shinsaku Shiraishi
DOI:10.1039/c39920001060
日期:——
Exclusive formation of amino acid esters took place at an appreciable rate in the CuII-catalysed solvolysis of 6,6â²-(α-alanylamino or α-phenylalanylamino)-2,2â²-bipyridine in alcoholâborate buffer (pH 7.2) solutions at 20 °C via formation of an amide-O-coordinated complex, even though appreciable amounts of water (0â40% v/v) were present in the solution.
在20°C的醇-硼酸盐缓冲液(pH 7.2)中,通过形成酰胺-O-配位复合物,CuII催化的6,6′-(α-丙氨酸氨基或α-苯丙氨酸氨基)-2,2′-联吡啶的溶剂解离反应以相当可观的速率进行,尽管溶液中存在相当数量的水(0-40% v/v)。