Preparation of Aromatic Triazenes and Their Application in Silver-Mediated Perfluoroalkylation Reactions
作者:Stefan Bräse、Andreas Hafner、Christoph Hussal
DOI:10.1055/s-0033-1341249
日期:——
Herein, the syntheses of various functionalized 1,3-diisopropyltriaz-1-enes is described. This simple transformation tolerates a vast number of functional groups (e.g., halides) and allows the syntheses of 1,3-diisopropyltriaz-1-enes starting from commercially available aniline derivatives. These substrates are suitable for a range of silver-mediated perfluoroalkylation reactions.
Ortho-Trifluoromethylation of Functionalized Aromatic Triazenes
作者:Andreas Hafner、Stefan Bräse
DOI:10.1002/anie.201107414
日期:2012.4.10
A silver key to add CF3: In presence of in situ generated AgCF3, it is possible to trifluoromethylate aromatictriazenes in high ortho selectivity and good yields by means of a CH substitution (see scheme). Owing to the further transformation possibilities offered by triazenes, a variety of CF3‐substituted building blocks are then accessible.