Chemoselective nitration of aromatic sulfonamides with tert-butyl nitrite
作者:Brenden Kilpatrick、Markus Heller、Steve Arns
DOI:10.1039/c2cc37481a
日期:——
A methodology for the efficient conversion of aromatic sulfonamides into their mono-nitro derivatives using tert-butyl nitrite is reported. The reaction exhibits a high degree of chemoselectivity for sulfonamide functionalized aryl systems, even in the presence of other sensitive or potentially reactive functionalities.
Copper-Catalyzed Direct Nitration on Aryl C–H Bonds by Concomitant Azidation–Oxidation with TMS Azide and TBHP under Aerobic Conditions
作者:Botla Vinayak、Malapaka Chandrasekharam
DOI:10.1021/acs.orglett.7b01489
日期:2017.7.7
An unprecedented copper-catalyzed in situ azidation–oxidation for the nitration of anilides and sulfonamides has been developed by direct CAr–H functionalization. This novel and efficient nitration protocol is achieved employing TMSN3 and TBHP without the exclusion of air or moisture. The synthetic applications of the 2-nitroanilides have been explored.
通过直接的C Ar -H功能化,开发出了前所未有的铜催化原位叠氮化氧化技术,用于苯胺和磺酰胺的硝化。使用TMSN 3和TBHP可以实现这种新颖而高效的硝化方案,而不会排除空气或湿气。已经研究了2-硝基苯胺的合成应用。