Palladium-Catalyzed Regioselective Oxidative Coupling of Indoles and One-Pot Synthesis of Acetoxylated Biindolyls
作者:Zunjun Liang、Jinlong Zhao、Yuhong Zhang
DOI:10.1021/jo902265s
日期:2010.1.1
developed to achieve Pd-catalyzed homocoupling of indoles with excellent regioselectivity in the presence of Cu(OAc)2·H2O in DMSO at room temperature in high efficiency. This method provides a simple route to 2,3′-biindolyls from the electron-rich to moderately electron-poor indoles. The reaction tolerates the bromide substituent on indoles. In addition, a one-pot approach to C3-position acetoxylated biindolyls
Ligand-Controlled Selectivity in the Pd-Catalyzed C–H/C–H Cross-Coupling of Indoles with Molecular Oxygen
作者:Igor Beckers、Besir Krasniqi、Prashant Kumar、Daniel Escudero、Dirk De Vos
DOI:10.1021/acscatal.0c04893
日期:2021.2.19
the selective C–H/C–H cross-coupling of N-substituted indoles without directing groups, driven by molecular oxygen under mild conditions. The selectivity of the C–H activations was studied via kinetic experiments and computational investigations. A quantitative Hammett study of the aromatic carboxylate ligands shows that regioselectivity can be directed by rationally tuning their electronic properties