Copper‐Catalyzed Synthesis of Terminal vs. Fluorine‐Substituted
<i>N</i>
‐Allenamides via Addition of Diazo Compounds to Terminal Ynamides
作者:Yongxiang Zheng、Baptiste Moegle、Santanu Ghosh、Anna Perfetto、Davide Luise、Ilaria Ciofini、Laurence Miesch
DOI:10.1002/chem.202103598
日期:2022.1.3
diazo-compounds was developed. DFT calculations showed that this transformation relies on an uncommon, reversed mechanism that, regardless of the polarization of the ynamide, favors the addition of the diazo compound at the β-position of the ynamide. The protocol tolerates a wide range of functional groups. This copper-catalyzed process represents the first synthesis of tri-, di- or per-fluorinated N-allenamides
甲的CuI催化健壮合成的ñ -allenamides从ynamides通过与各种重氮化合物的反应被开发。DFT 计算表明,这种转变依赖于一种不常见的反向机制,无论 ynamide 的极化如何,都有利于在 ynamide 的 β 位添加重氮化合物。该协议容忍范围广泛的功能组。这种铜催化工艺代表了首次从炔酰胺合成三、二或全氟化N-烯丙酰胺。