64985-95-1Relevant articles and documents
Cp*Co(iii)-catalyzed annulation of azines by C-H/N-N bond activation for the synthesis of isoquinolines
Deshmukh, Dewal S.,Yadav, Prashant A.,Bhanage, Bhalchandra M.
supporting information, p. 3489 - 3496 (2019/04/14)
Herein, an efficient, atom economic and external oxidant free approach has been disclosed for the synthesis of isoquinolines. Azines were employed for annulation reactions with alkynes via sequential C-H/N-N bond activation using an air-stable cobalt catalyst. The method takes advantage of the incorporation of both the nitrogen atoms of azines into the desired isoquinoline products, offering the highest atom economy. In addition, the developed protocol works under external oxidant as well as silver salt free conditions. Furthermore, the established methodology features a relatively broad substrate scope with high product yields and scalability up to the gram level.
A process for preparing 1, 2 - double-(1 - aryl alkyl methylene) method of the hydrazine compound
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Paragraph 0035; 0036, (2017/07/21)
The present invention discloses method for preparing a 1,2-bis(1-aralkyl methylene) hydrazine compound. The method comprises the following steps of: dissolving benzene sulfonyl hydrazone into a CH3CN solvent; then adding ammonium persulfate and cesium carbonate to react for 6hours under a condition of 100 DEG C; after the reaction is ended, performing extraction and column chromatographic separation, thereby obtaining the 1,2-bis(1-aralkyl methylene) hydrazine compound. According to the method, ammonium persulfate with a low price is used as a catalyst to catalyze benzene sulfonyl hydrazone to generate degradation reaction; the reaction conditions are mild; the reaction time is short; a post-treatment process is simple; the reaction product is low; and the product yield is high. The 1,2-bis(1-aralkyl methylene) hydrazine compound can be used as a useful synthesis intermediate, and has potential pharmaceutical activity and a wide application.
Copper-catalyzed N-N bond formation by homocoupling of ketoximes via n-o bond cleavage: Facile, mild, and efficient synthesis of azines
Zhao, Mi-Na,Liang, Hao,Ren, Zhi-Hui,Guan, Zheng-Hui
experimental part, p. 1501 - 1506 (2012/06/18)
A facile, mild, and efficient copper-catalyzed homocoupling of ketoximes involving N-O bond cleavage in the presence of sodium bisulfite (NaHSO has been developed. This reaction shows good functional group tolerance and affords a broad scope of azines in high yields.