Rh(I)-Catalyzed Direct Arylation of Pyridines and Quinolines
作者:Ashley M. Berman、Jared C. Lewis、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/ja8059396
日期:2008.11.12
A Rh(I)-catalyzed direct arylation of pyridine and quinoline heterocycles has been developed. The method provides rapid entry into an important class of substituted heterocycles employing inexpensive and readily available starting materials.
Compounds comprising a ligand having a quinoline or isoquinoline moiety and a phenyl moiety, e.g., (iso)pq ligands. In particular, the ligand is further substituted with electron donating groups. The compounds may be used in organic light emitting devices, particularly devices with emission in the deep red part of the visible spectrum, to provide devices having improved properties.
Rh(I)-Catalyzed Direct Arylation of Azines
作者:Ashley M. Berman、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/jo101793r
日期:2010.11.19
products using the commercially available and air-stable catalyst [RhCl(CO)2]2. Electron-deficient and electron-rich aromatic bromides couple in good yields, and hydroxyl, chloro, fluoro, trifluoromethyl, ether, and ketone functionalities are compatible with the reaction conditions. Aroyl chlorides also serve as effective azine coupling partners to give ortho-arylation products via a decarbonylation pathway