Ringerweiterung von 1,2-Thiazol-3(2<i>H</i>)-on-1,1-dioxiden und 3-Amino-2<i>H</i>-azirinen zu 4<i>H</i>-1,2,5-Thiadiazocin-6-on-1,1-dioxiden
作者:Annette Rahm、Anthony Linden、Beverly R. Vincent、Heinz Heimgartner、Manfred Mühlstädt、Bärbel Schulze
DOI:10.1002/hlca.19910740511
日期:1991.8.7
Ring Enlargement of 1,2-Thiazol-3(2H)-one-1,1-dioxides and 3-Amino-2H-azirines to 4H-1,2,5-Thiadiazocin-6-one-1,1-dioxides
1,2-噻唑-3(2 H)-one-1,1- dioxides和3-Amino-2 H -azirines的环扩大至4 H -1,2,5 - Thiadiazocin -6-one-1,1 -二氧化物
Copper-catalyzed arenes amination with saccharins
作者:Kai Sun、Yan Li、Qian Zhang
DOI:10.1007/s11426-015-5385-y
日期:2015.8
A novel copper-catalyzed direct C-N formation reaction of simplearenes with cheap and pharmacological saccharin derivatives under relatively mild conditions was developed with arenes as limiting reagents. This work provided a new method for oxidativecoupling of aromatic C(sp2)-H bonds and N-H bonds.
Rhodium(III)-catalyzed chelation-assisted C-H imidation of arenes via umpolung of the imidating reagent
作者:Guangfan Zheng、Jiaqiong Sun、Youwei Xu、Xukai Zhou、Hui Gao、Xingwei Li
DOI:10.1016/s1872-2067(20)63587-2
日期:2020.11
Abstract Rh(III)-catalyzed, chelation-assisted oxidative C−H imidation of arenes with N−H imide have been realized using PhI(OAc)2 as an oxidant. This transformation exhibits a broad substrate scope and tolerates various functional groups. The reaction proceeded via in situ generation of an iodine(III) imido. DFT calculations suggest that this oxidative imidaton system proceeds via a Rh(III)-Rh(V)-Rh(III)