138152-19-9Relevant academic research and scientific papers
Electrooxidative and Regioselective C?H Azolation of Phenol and Aniline Derivatives
Feng, Pengju,Ma, Guojian,Chen, Xiaoguang,Wu, Xing,Lin, Ling,Liu, Peng,Chen, Tianfeng
, p. 8400 - 8404 (2019)
A general and practical protocol was developed for the regioselective C?H azolation of phenol and aniline derivatives by electrooxidative cross-coupling. The reaction occurs under metal-, oxidant-, and reagent-free conditions, allowing access to a wide variety of synthetically useful heteroarene derivatives. The reaction also tolerates a broad range of functional groups and is amenable to gram-scale synthesis. Finally, a preliminary mechanistic study indicated that a radical–radical-combination pathway might be involved in the coupling reaction.
Reaction of Pyrazole Adddition to Quinones
Ballesteros, Paloma,Claramunt, Rosa M.,Escolastico, Consuelo,Maria, M. Dolores Santa,Elguero, Jose
, p. 1873 - 1876 (2007/10/02)
The reactions of pyrazole, 4-nitropyrazole, 3,5-dimethylpyrazole, and 4-chloro-3,5-dimethylpyrazole with 1,4-benzoquinone in dioxane have been analyzed.Mono- and 2,3-bis-adducts were obtained and only in the case of pyrazole was a 2,5-bis(pyrazol-1-yl)-1,
