Synthesis of β-Fluoro-α,β-Unsaturated Amides from the Fragmentation of Morpholine 3,3,3-Trifluoropropanamide by Grignard Reagents
作者:Amna T. Adam、Frank R. Fronczek、David A. Colby
DOI:10.1021/acs.orglett.0c00599
日期:2020.4.3
hydrolytic enzymes in vivo. Currently, α-fluoro-α,β-unsaturated carbonyl compounds are readily accessible via general synthetic methods; however, β-fluoro-α,β-unsaturated carbonyl groups are more challenging to construct. To address this need, we have designed a reagent, morpholine 3,3,3-trifluoropropanamide, that creates (E)-β-fluoro-α,β-unsaturated amides upon the addition of many commonly used Grignard
氟烯烃用作肽键的生物等排体,并且在体内对水解酶具有抗性。目前,α-氟-α,β-不饱和羰基化合物可通过常规合成方法容易地获得。然而,β-氟-α,β-不饱和羰基的构建更具挑战性。为了满足这一需求,我们设计了一种试剂吗啉3,3,3-三氟丙酰胺,在添加许多常用的格氏试剂后会生成(E)-β-氟-α,β-不饱和酰胺。与该试剂的反应可在氟烯烃产物中实现高水平的立体控制。