Pd-catalyzed dehydrogenative annulation approach for the efficient synthesis of phenanthridinones
作者:Xinyao Li、Jun Pan、Song Song、Ning Jiao
DOI:10.1039/c6sc01148a
日期:——
annulation of aryl iodides and aryl carbamic chlorides for the efficientsynthesis of phenanthridinone derivatives was developed. Simple aryl iodides and carbamic chlorides readily made from various anilines, a broad substrate scope with hetero/polycycles, as well as high-value products, make this direct dehydrogenative annulation approach very practical and attractive.
The direct arylation of benzanilide (1) possessing ether oxygen(s) in benzoyl part was examined under phosphine ligand-free conditions, which afforded ortho-product (2) and para-product (3) in very similar ratio to presence of P(o-Tol)(3) conditions. This results suggest that bulkiness of palladium under phosphine-free conditions would be comparable to that of P(o-Tol)(3) conditions.
824. Internuclear cyclisation. Part XV. The catalytic decomposition of diazonium chlorides prepared from ortho-substituted 2-amino-N-methylbenzanilides
作者:D. H. Hey、R. A. J. Long
DOI:10.1039/jr9590004110
日期:——
Biaryl Coupling Reactions of 3-Methoxy-N-(2-iodophenyl)-N-methylbenzamide and 3-Methoxycarbonyl-N-(2-iodophenyl)-N-methylbenzamide Using Palladium Reagent
We examined palladium-assisted biaryl coupling reactions of 3-methoxy and 3-methoxycarbonyl benzanilidcs, and propose an aspect of the mechanism involved in forming a biaryl bond using Pd reagent.