sp<sup>3</sup> C–H Bond Activation with Ruthenium(II) Catalysts and C(3)-Alkylation of Cyclic Amines
作者:Basker Sundararaju、Mathieu Achard、Gangavaram V. M. Sharma、Christian Bruneau
DOI:10.1021/ja203875d
日期:2011.7.13
A selective C(3)-alkylation via activation/functionalization of sp(3) C-H bond of saturated cyclicamines was promoted by (arene)ruthenium(II) complexes featuring a bidentate phosphino-sulfonate ligand upon reaction with aldehydes. This highly regioselective sustainable transformation takes place via initial dehydrogenation of cyclicamines and hydrogenautotransferprocesses.
Evolution of the Dearomative Functionalization of Activated Quinolines and Isoquinolines: Expansion of the Electrophile Scope
作者:Marvin Kischkewitz、Bruno Marinic、Nicolas Kratena、Yonglin Lai、Hamish B. Hepburn、Mark Dow、Kirsten E. Christensen、Timothy J. Donohoe
DOI:10.1002/anie.202204682
日期:2022.7.4
Reductive functionalisation of quinolinium and isoquinolinium salts with formic acid as the terminal reductant was possible under transition-metal-free conditions or rhodium catalysis with very low catalyst loadings. A wide range of electrophiles, including enones, imides, unsaturated esters and sulfones, β-nitrostyrenes and aldehydes, were intercepted by the enamine species formed in situ to generate