An efficient preparation of 1-phenylsulfonylindolyl methyl sulfoxides using KF/m-CPBA
摘要:
A variety of 1-phenylsulfonylindolylmethyl sulfides are selectively oxidized to the corresponding sulfoxides using a hitherto unexplored KF/m-CPBA system. A major advantage is the absence of over-oxidation. (c) 2005 Elsevier Ltd. All rights reserved.
Palladium(0)-Catalyzed Dearomative [3 + 2] Cycloaddition of 3-Nitroindoles with Vinylcyclopropanes: An Entry to Stereodefined 2,3-Fused Cyclopentannulated Indoline Derivatives
作者:Maxime Laugeois、Johanne Ling、Charlène Férard、Véronique Michelet、Virginie Ratovelomanana-Vidal、Maxime R. Vitale
DOI:10.1021/acs.orglett.7b00784
日期:2017.5.5
The palladium(0)-catalyzed diastereoselective dearomative cyclopentannulation of 3-nitroindoles with vinylcyclopropanes is described. This straightforward and highly atom-economical method leads to a wide range of functionalized indolines in good yields and diastereoselectivities and represents an unprecedented entry toward the valuable 2,3-fused cyclopentannulated indoline scaffold.
Ir(I)-Catalyzed C–H Bond Alkylation of C2-Position of Indole with Alkenes: Selective Synthesis of Linear or Branched 2-Alkylindoles
作者:Shiguang Pan、Naoto Ryu、Takanori Shibata
DOI:10.1021/ja308742x
日期:2012.10.24
A cationic iridium-catalyzed C2-alkylation of N-substituted indole derivatives with various alkenes has been developed, which selectively gives linear or branched 2-alkylindoles in high to excellent selectivity. This protocol relies on the use of the carbonyl group on the nitrogen atom of indole as a directing group: a linear product was predominant when an acetyl group was used as a directing group, and a branched product was predominant with a benzoyl group.
Metal-free dearomative 2,3-difunctionalization of indoles via radical cascade
作者:Pranesh Pal、Gadela Karteek Goud、Balasubramanian Sridhar、Prathama S. Mainkar、Kiranmai Nayani、Srivari Chandrasekhar