作者:Baris Ilkgul、Deniz Gunes、Okan Sirkecioglu、Niyazi Bicak
DOI:10.1016/j.tetlet.2010.07.167
日期:2010.10
process is presented for the synthesis of 2-oxazolines in high yields (75–94%) via boron esters of N-(2-hydroxyethyl) amides. The procedure involves thermolysis of the boron esters at 240–260 °C, in the presence of solid CaO as an acid scavenger and allows the preparation of oxazolines from hydroxyethyl amides of aliphatic and aromatic monocarboxylic acids.
提出了一种新的便捷的一锅法,该方法通过N-(2-羟乙基)酰胺的硼酸酯以高收率(75-94%)合成2-恶唑啉。该方法包括在固态CaO作为除酸剂的情况下,在240–260°C下将硼酸酯热解,并允许由脂肪族和芳香族单羧酸的羟乙基酰胺制备恶唑啉。