arylnitrones and diazo compounds by C–H activation/[4 + 1] annulation with a C(N2)–C(acyl) bond cleavage is reported, and 2,3-disubstituted NH indoles are directly synthesized in up to a 94% yield. A variety of functional groups are applicable to this reaction to give the corresponding products with high selectivity. Compared to other previously reported Rh(III)-catalyzed synthesis of homologous series, this method
Palladium-Catalyzed Intramolecular Trapping of the Blaise Reaction Intermediate for Tandem One-Pot Synthesis of Indole Derivatives
作者:Ju Hyun Kim、Sang-gi Lee
DOI:10.1021/ol200045q
日期:2011.3.18
Palladium-catalyzed intramolecular N-arylative and N-alkylative/N-arylative trappings of the Blaise reaction intermediates could be a new route to construct the indole moiety in a tandem one-pot manner from nitriles.
Iodide-Ion-Catalyzed Carbon-Carbon Bond-Forming Cross-Dehydrogenative Coupling for the Synthesis of Indole Derivatives
作者:Zhenhua Jia、Takashi Nagano、Xingshu Li、Albert S. C. Chan
DOI:10.1002/ejoc.201201585
日期:2013.2
nBu4NI-catalyzed intramolecular cross-dehydrogenativecoupling (CDC) reaction has been applied to the synthesis of 1H-indole derivatives. Intramolecular oxidative coupling of N-arylenamines proceeded in the presence of a catalytic amount of nBu4NI and tert-butyl hydroperoxide (TBHP) to afford the corresponding 1H-indole derivatives in good-to-excellent yields. A preliminary study of the synthesis of 3H-indole is also
Electrocatalytic intramolecular oxidative annulation of N-aryl enamines into substituted indoles mediated by iodides
作者:Shan Tang、Xinlong Gao、Aiwen Lei
DOI:10.1039/c7cc00410a
日期:——
An electrocatalytic reaction protocol is developed for achieving intramolecular dehydrogenative annulation of N-arylenamines. It offers a simple and efficient way for the synthesis of indoles in an undivied cell....