Manganese-Promoted Regioselective Ring-Opening of 2,3-Epoxy Acid Derivatives: A New Route to α-Hydroxy Acid Derivatives
作者:José M. Concellón、Pablo L. Bernad、Humberto Rodríguez-Solla、Pamela Díaz
DOI:10.1002/adsc.200900257
日期:2009.9
amides as starting materials, the corresponding 3-aryl-2-hydroxy amides in enantiopure form are also available. Some synthetic applications of selected examples of 3-aryl-2-hydroxy carboxylic acid derivatives are shown. A mechanism has been proposed to explain this novel reaction.
描述了一种简单而通用的方法,该方法涉及由活性锰促进的从容易获得的2,3-环氧酰胺或酯合成3-芳基-2-羟基酰胺或具有总区域选择性的酯。利用对映纯的环氧酰胺作为起始原料,也可获得对映纯的相应的3-芳基-2-羟基酰胺。显示了3-芳基-2-羟基羧酸衍生物的选定实例的一些合成应用。已经提出了一种机制来解释这种新颖的反应。