Catalytic Chemical Amide Synthesis at Room Temperature: One More Step Toward Peptide Synthesis
作者:Tharwat Mohy El Dine、William Erb、Yohann Berhault、Jacques Rouden、Jérôme Blanchet
DOI:10.1021/acs.joc.5b00378
日期:2015.5.1
An efficient method has been developed for direct amide bond synthesis between carboxylic acids and amines via (2-(thiophen-2-ylmethyl)phenyl)boronic acid as a highly active bench-stable catalyst. This catalyst was found to be very effective at room temperature for a large range of substrates with slightly higher temperatures required for challenging ones. This methodology can be applied to aliphatic
已经开发出一种有效的方法,可以通过(2-(噻吩-2-基甲基)苯基)硼酸作为一种高活性的台式稳定催化剂,直接在羧酸和胺之间合成酰胺键。发现该催化剂在室温下对于大范围的底物非常有效,而具有挑战性的底物需要稍高的温度。该方法可以应用于脂族,α-羟基,芳族和杂芳族酸以及伯,仲,杂环,甚至官能化胺。值得注意的是,N -Boc保护的氨基酸以良好的产率成功地偶联,而消旋作用很小。报道了催化二肽合成的一个例子。