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Cover Picture: Heterogeneous Chitosan@Copper(II)‐Catalyzed Remote Trifluoromethylation of Aminoquinolines with the Langlois Reagent by Radical Cross‐Coupling (ChemCatChem 23/2016)
Author(s) -
Shen Chao,
Xu Jun,
Ying Beibei,
Zhang Pengfei
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201601456
Subject(s) - trifluoromethylation , reagent , copper , cover (algebra) , catalysis , chemistry , coupling (piping) , combinatorial chemistry , organic chemistry , materials science , metallurgy , mechanical engineering , alkyl , trifluoromethyl , engineering
The Front Cover illustrates the first example of an heterogeneous catalyst Chitosan@Cu(OAc) 2 ‐catalyzed remote trifluoromethylation of aminoquinolines at C5 position under mild conditions.In their Communication, C. Shen et al. demonstrate that the trifluoromethylation products can be isolated in good to excellent yields using this method. Most importantly, the heterogeneous catalyst Chitosan@Cu(OAc) 2 can been recycled many times without significant loss of catalytic performance. This protocol proves that the chitosan‐based catalyst can further set the stage for the efficient reuse of the heterogeneous copper catalyst in position‐selective C‐H activations. More information can be found in the Communication by C. Shen et al. on page 3560 in Issue 23, 2016 (DOI: 10.1002/cctc.201601068).