“On Water”, Phosphine-Free Palladium-Catalyzed Room Temperature CH Arylation of Indoles
作者:Saidul Islam、Igor Larrosa
DOI:10.1002/chem.201302838
日期:2013.11.4
top of your chemistry! An “on water”, palladium‐catalyzed, phosphine‐free direct CH arylation of indoles, with iodoarenes at 25–30 °C, is disclosed (see scheme; TBDMS=N‐tert‐butyldimethylsilyl ether; SEM=N‐2‐(trimethylsilyl)ethoxymethyl; Bn=benzyl, Piv=pivabyl). The mildness of the reaction conditions permits the tolerance of a variety of N1‐protected indoles.
Elements of Regiocontrol in Palladium-Catalyzed Oxidative Arene Cross-Coupling
作者:David R. Stuart、Elisia Villemure、Keith Fagnou
DOI:10.1021/ja0745862
日期:2007.10.1
By changing the stoichiometric oxidant and modifying the indole N-substituent in palladium-catalyzedoxidativearene cross-coupling reactions, both C2 and C3 oxidative indole arylation can be achie...
Regiocontrolled aerobic oxidative coupling of indoles and benzene using Pd catalysts with 4,5-diazafluorene ligands
作者:Alison N. Campbell、Eric B. Meyer、Shannon S. Stahl
DOI:10.1039/c1cc13632a
日期:——
Palladium-catalyzed aerobic oxidative cross-couplings of indoles and benzene have been achieved by using 4,5-diazafluorene derivatives as ancillary ligands. Proper choice of the neutral and anionic ligands enables control over the reaction regioselectivity.
An Efficient Procedure for the Deprotection of <i>N</i>-Pivaloylindoles, Carbazoles and β-Carbolines with LDA
作者:J. Menéndez、Carmen Avendaño、J. Sánchez
DOI:10.1055/s-2004-836060
日期:——
Treatment of variously substituted indoles with 2 equivalents of LDA at 40-45 °C led to their fast and efficient deprotection. This method was also extended to N-pivaloylcarbazoles and β-carbolines.