Rh(I)-Catalyzed Alkylation of Quinolines and Pyridines via C−H Bond Activation
作者:Jared C. Lewis、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/ja070388z
日期:2007.5.1
The scope of heterocycle ortho-alkylation has been dramatically expanded to include pharmaceutically important pyridines and quinolines, which contain only a single nitrogen. The reactions, which are conducted at a high concentration (0.8 M), can be performed with catalyst loadings as low as 1% Rh. Substitution ortho to the heterocycle ring nitrogen is required for efficient alkylation and is consistent with the intermediacy of a Rh-carbene intermediate similar to those proposed in our earlier work.
Addition of C–H Bonds of Pyridine Derivatives to Alkenes Catalyzed by Zirconium Complexes Bearing Amine-Bridged Bis(phenolato) Ligands
作者:Qiu Sun、Ping Chen、Yaorong Wang、Yunjie Luo、Dan Yuan、Yingming Yao
DOI:10.1021/acs.inorgchem.8b01959
日期:2018.9.17
Cationic zirconium complexes in situ generated from zirconium dibenzyl complexes bearing amine-bridged bis(phenolato) ligands have been developed to catalyze addition of C(sp2)–H and C(sp3)–H bonds of pyridine derivatives to alkenes. A series of zirconium complexes bearing different ligands have been synthesized, and their activities in catalyzing addition of C(sp3)–H bonds of pyridine derivatives to alkenes