Trifluoromethylation of 1-Aryl-3,3-diisopropyltriazenes
作者:Andreas Hafner、Stefan Bräse
DOI:10.1002/adsc.201201040
日期:2013.3.25
new method for the trifluoromethylation of functionalized aromatic diisopropyltriazenes is described. In a facile two‐step, one‐pot synthesis, various functionalized trifluoromethyl‐substituted arenes are accessible in mostly good yields by using methyl iodide as iodination agent and the trifluoromethylation system (trifluoromethyl)trimethylsilane/potassium fluoride/copper iodide. This concept could
Sc(OTf)<sub>3</sub>-Catalyzed Transfer Diazenylation of 1,3-Dicarbonyls with Triazenes via N–N Bond Cleavage
作者:Cong Liu、Jian Lv、Sanzhong Luo、Jin-Pei Cheng
DOI:10.1021/ol5027014
日期:2014.10.17
A new and efficient method for diazenylation reactions was developed with a Sc(OTf)(3)-catalyzed nitrogen-nitrogen bond cleavage process with triazenes. The transfer diazenylation reactions accommodate a diverse range of active methylene substrates including simple ketones to give aliphatic azo compounds that are of significant potential as azo prodrugs in high yields under mild conditions.