Enantioselective Synthesis of Isoindolones via Palladium – Catalyzed Intramolecular Heck‐Mizoroki Reactions of Endocyclic Enamides Using <i>N</i>,<i>N</i>‐Ligands
作者:Carson Wiethan、Ingredy B. Braga、Vitor H. Menezes da Silva、João M. Batista、Carlos Roque D. Correia
DOI:10.1002/cctc.202300422
日期:2023.6.22
Chiral N,N-ligands are under-represented in palladium-catalyzed reactions. However, they proved effective in the enantioselective synthesis of isoindolones by intramolecular Heck reactions of endocyclic enamides in good yields, and enantiomeric ratios. Moreover, Vibrational Circular Dichroism proved valuable for assigning the absolute stereochemistry of the isoindolones, mainly those containing a quaternary
手性N , N -配体在钯催化反应中的代表性不足。然而,事实证明,它们在通过内环烯酰胺的分子内 Heck 反应以良好的收率和对映体比率对映选择性合成异吲哚酮类化合物方面是有效的。此外,振动圆二色性证明对分配异吲哚酮的绝对立体化学很有价值,主要是那些含有四元中心的异吲哚酮。