1582806-75-4Relevant articles and documents
Functionalized Polymer-Supported Pyridine Ligands for Palladium-Catalyzed C(sp3)-H Arylation
Lee, Li-Chen,He, Jian,Yu, Jin-Quan,Jones, Christopher W.
, p. 5245 - 5250 (2016/08/18)
The use of ligands to tune the reactivity and selectivity of transition-metal catalysts for C(sp3)-H bond activation is a current central challenge. One of us previously developed an uncommon example of a homogeneous catalyst that performs controlled C(sp3)-H arylation using pyridine derivatives as ligands, along with Pd [Science, 2014, 343, 1216-1220]. In this work, we report a functionalizable and tunable polymer support used in the immobilization of pyridine derivatives that yields a soluble, polymeric ligand platform facilitating C(sp3)-H activation reactions with good yields, selectivities differing from the homogeneous catalyst, and recovery of Pd. Unlike the homogeneous system, the supported catalysts in Pd-catalyzed C-H monoarylation reactions respond sensitively to the steric hindrance of the coupling partners.
Ligand-Enabled Cross-Coupling of C(sp3)-H Bonds with Arylsilanes
He, Jian,Takise, Ryosuke,Fu, Haiyan,Yu, Jin-Quan
, p. 4618 - 4621 (2015/04/27)
Pd(II)-catalyzed cross-coupling of C(sp3)-H bonds with organosilicon coupling partners has been achieved for the first time. The use of a newly developed quinoline-based ligand is essential for the cross-coupling reactions to proceed.