Palladium-Catalyzed Intramolecular Amidation of C(sp<sup>2</sup>)−H Bonds: Synthesis of 4-Aryl-2-quinolinones
作者:Kiyofumi Inamoto、Tadataka Saito、Kou Hiroya、Takayuki Doi
DOI:10.1021/jo100557s
日期:2010.6.4
A catalytic synthetic approach for the synthesis of 2-quinolinone compounds through a Pd-catalyzed C(sp2)−H functionalization/intramolecularamidation sequence is described. The cyclization process efficiently proceeds in the presence of a catalytic amount of PdCl2 and Cu(OAc)2 under an O2 atmosphere, providing practical access to a range of variously substituted 4-aryl-2-quinolinones.
Tandem-type Pd(ii)-catalyzed oxidative Heck reaction/intramolecular C–H amidation sequence: a novel route to 4-aryl-2-quinolinones
作者:Kiyofumi Inamoto、Junpei Kawasaki、Kou Hiroya、Yoshinori Kondo、Takayuki Doi
DOI:10.1039/c2cc30600j
日期:——
A novel catalytic method for synthesizing 4-aryl-2-quinolinones is reported. The process involves two mechanistically independent, sequential Pd(II)-catalyzed reactions--the oxidative Heck reaction and the intramolecular C-H amidation--both of which smoothly proceed in the presence of a single catalytic system in a one-pot manner.