Abstract The recent molecular iodine catalyzed [1,2]-rearrangement of aryl amines and 3-amino-1H-indazolesfor the synthesis of 1,2,3-benzotriazines is highlighted.
Iodine-catalysed N-centered [1,2]-rearrangement of 3-aminoindazoles with anilines: efficient access to 1,2,3-benzotriazines
作者:Jie Ren、Xinxin Yan、Xiaofan Cui、Chao Pi、Yangjie Wu、Xiuling Cui
DOI:10.1039/c9gc03567b
日期:——
A straightforward and synthetically valuable approach for the synthesis of 1,2,3-benzotriazines has been developed via iodine-catalysed N-centered [1,2]-rearrangement of 3-aminoindazoles with anilines. This reaction tolerated a wide scope of substrates under simple reaction conditions employing I2 as a cheap catalyst.
[EN] DERIVATIVES OF 1-[(IMIDAZOLIDIN-2-YL)IMINO)]INDAZOLE<br/>[FR] DÉRIVÉS DU 1-[(IMIDAZOLIDIN-2-YL)IMINO)]INDAZOLE
申请人:IMP INNOVATIONS LTD
公开号:WO2009071906A1
公开(公告)日:2009-06-11
The invention provides a compound of formula (I) wherein R1 denotes hydrogen, methyl or phenyl; R2, R3, R4 and R5 denote hydrogen, halogen, preferably a chlorine atom, alkyl, preferably methyl, alkoxyl, preferably methoxyl; m denotes a number 0 or 1; and HX denotes sulfuric, phosphoric, acetic, malonic, fumaric, oxalic, lactic, tartaric, citric, gluconic, p-toluenesulfonic, methanesulfonic acid, hydrogen bromide or hydrogen iodide, preferably hydrogen chloride. The use of the compounds as α2-adrenergic receptor agonists is also provided.