Direct Synthesis of Amides from Carboxylic Acids and Amines Using B(OCH<sub>2</sub>CF<sub>3</sub>)<sub>3</sub>
作者:Rachel M. Lanigan、Pavel Starkov、Tom D. Sheppard
DOI:10.1021/jo400509n
日期:2013.5.3
range of amines. In most cases, the amide products can be purified by a simple filtration procedure using commercially available resins, with no need for aqueous workup or chromatography. The amidation of N-protected amino acids with both primary and secondary amines proceeds effectively, with very low levels of racemization. B(OCH2CF3)3 can also be used for the formylation of a range of amines in good
B(OCH 2 CF 3 ) 3由易得的B 2 O 3和2,2,2-三氟乙醇制备,是一种有效的试剂,可用于多种羧酸与多种胺的直接酰胺化。在大多数情况下,可以使用市售树脂通过简单的过滤程序纯化酰胺产物,无需进行水处理或色谱法。N-保护的氨基酸与伯胺和仲胺的酰胺化有效进行,外消旋化水平非常低。B(OCH 2 CF 3 ) 3 通过二甲基甲酰胺的转酰胺基作用,也可用于一系列胺的甲酰化反应,收率良好至极好。