87613-34-1Relevant articles and documents
Dihalo(imidazolium)sulfuranes: A Versatile Platform for the Synthesis of New Electrophilic Group-Transfer Reagents
Talavera, Garazi,Pe?a, Javier,Alcarazo, Manuel
, p. 8704 - 8707 (2015)
The syntheses of imidazolium thiocyanates and imidazolium thioalkynes from dihalo(imidazolium) sulfuranes are reported and their reactivities as CN+ and R-CC+ synthons evaluated, respectively. The easy and scalable preparation of these electrophilic reagents, their operationally simple handling, broad substrate scope, and functional group tolerance clearly illustrate the potential of these species to become a reference for the direct electrophilic cyanation and alkynylation of organic substrates.
Site-Selective Electrochemical C-H Cyanation of Indoles
Li, Laiqiang,Hou, Zhong-Wei,Li, Pinhua,Wang, Lei
supporting information, p. 5983 - 5987 (2021/08/16)
An electrochemical approach for the site-selective C-H cyanation of indoles employing readily available TMSCN as cyano source has been developed. The electrosynthesis relies on the tris(4-bromophenyl)amine as a redox catalyst, which achieves better yield and regioselectivity. A variety of C2- and C3-cyanated indoles were obtained in satisfactory yields. The reactions are conducted in a simple undivided cell at room temperature and obviate the need for transition-metal reagent and chemical oxidant.
GaCl3-Catalyzed C-H Cyanation of Indoles with N-Cyanosuccinimide
Wang, Xue,Makha, Mohamed,Chen, Shu-Wei,Zheng, Huaiji,Li, Yuehui
, p. 6199 - 6206 (2019/05/24)
An efficient GaCl3-catalyzed direct cyanation of indoles and pyrroles using bench-stable electrophilic cyanating agent N-cyanosuccinimide was achieved and afforded 3-cyanoindoles and 2-cyanopyrroles in good yields and excellent regioselectivities. Notably, this protocol exhibited high reactivity for unprotected indoles and was applicable to a broad range of indole and pyrrole substrates.
