1401069-86-0Relevant articles and documents
Synthesis of tri- and tetrasubstituted pyrazoles via Ru(II) catalysis: Intramolecular aerobic oxidative C-N coupling
Hu, Jiantao,Chen, Shi,Sun, Yonghui,Yang, Jing,Rao, Yu
supporting information, p. 5030 - 5033,4 (2012/12/12)
An unprecedented ruthenium(II)-catalyzed intramolecular oxidative C-N coupling method has been developed for the facile synthesis of a variety of synthetically challenging tri- and tetrasubstituted pyrazoles. Dioxygen gas is employed as the oxidant in this transformation. The reaction demonstrates excellent reactivity, functional group tolerance, and high yields.