Copper‐Catalyzed Oxidative C−H Bond Functionalization of N‐Allylbenzamide for Regioselective C−N and C−O Bond Formation
作者:Jala Ranjith、Palakodety Radha Krishna
DOI:10.1002/asia.201900192
日期:2019.5.2
Copper‐catalyzed oxidative couplings of N‐allylbenzamides for C−N and C−O bond formations have been developed through C−H bond functionalization. To demonstrate the utility of this approach, it was applied to the synthesis of β‐aminoimides and imides. To the best of our knowledge, these are the first examples in which different classes of N‐containing compounds have been directly prepared from the
N-烯丙基苯甲酰胺通过铜催化的C-N和C-O键形成的氧化偶联作用是通过C-H键功能化而开发的。为了证明该方法的实用性,将其应用于β-氨基酰亚胺和酰亚胺的合成。就我们所知,这是第一个实例,其中使用廉价的催化剂/氧化剂/碱(CuSO 4 / TBHP / Cs 2 CO 3) 系统。
Intramolecular oxyacetoxylation of N-allylamides: an expeditious synthesis of oxazolines and oxazines by using a PhI(OAc)<sub>2</sub>/hydrogen fluoride–pyridine system
A facile metal-free tandem ring-opening/ring-closing strategy was developed for the synthesis of oxazolines in good to excellent reaction yields under mild reaction conditions. This reaction essentially describes a novel tool for the heterocyclic conversion of benzoxazin-4-ones to 2,5-disubstituted oxazolines directly in one-pot.