The use of readily available hydroxamic acids as reagents for the chemoselective (ortho‐amino)arylation of amides is described. This reaction proceeds under metal‐free, mild conditions, displays a very broad scope, and constitutes a direct approach for the metal‐free attachment of aniline residues to carbonyl derivatives.
作者:Francine Morris、Ryan Vierling、Lauren Boucher、Jürgen Bosch、Caren L. Freel Meyers
DOI:10.1002/cbic.201300187
日期:2013.7.22
Put a ring on it: Selective inhibition of DXP synthase is a challenge in developing anti‐infectives targeting isoprenoid biosynthesis. DXP synthase preferentially turns over sterically demanding aryl nitrososubstrates to form CN bonds, thus suggesting a new design for unnatural bisubstrate analogues as selectiveinhibitors of isoprenoid biosynthesis.
戴上戒指:选择性抑制 DXP 合酶是开发针对类异戊二烯生物合成的抗感染药物的挑战。DXP 合酶优先翻转空间要求高的芳基亚硝基底物以形成 C N 键,因此提出了一种新设计,将非天然双底物类似物用作类异戊二烯生物合成的选择性抑制剂。
Catalyst-free generation of acyl radicals induced by visible light in water to construct C–N bonds
作者:Maogang Ran、Jiaxin He、Boyu Yan、Wenbo Liu、Yi Li、Yunfen Fu、Chao-Jun Li、Qiuli Yao
DOI:10.1039/d0ob02364g
日期:——
for the direct generation of acyl radicals fromα-diketones, and its selective conversion of nitrosoarenes to hydroxyamides or amides with AcOH or NaCl as an additive. The reaction was carried out under mild conditions in water with purple LEDs as the light source. A broad scope of substrates was demonstrated. Mechanistic experiments indicate that α-diketones cleave to give acyl radicals, with hydroxyamides