Ruthenium-Catalyzed Regioselective C2 Alkenylation of Indoles and Pyrroles via C–H Bond Functionalization
作者:Bin Li、Jianfeng Ma、Weijia Xie、Haibin Song、Shansheng Xu、Baiquan Wang
DOI:10.1021/jo401579m
日期:2013.9.20
An efficient ruthenium-catalyzed oxidative coupling of indoles and pyrroles with various alkenes at the C2-position assisted by employing the N,N-dimethylcarbamoyl moiety as a directing group is reported. The catalytic reaction proceeds in an excellent regio- and stereoselective manner.
Catalytic C-2 Allylation of Indoles by Electronic Modulation of the Indole Ring and its Application to the Synthesis of Functionalized Carbazoles
作者:Ju Young Lee、Hyeri Ha、Seri Bae、Inhyuk Han、Jung Min Joo
DOI:10.1002/adsc.201600568
日期:2016.11.3
We report a palladium‐catalyzed C‐2 allylation of indoles and subsequent cyclization of the allylated indoles. The electronic effects of chloro and ester groups that can be readily installed at the C‐3 position of indoles facilitated a highly efficient C–H allylation at the C‐2 position. The resulting 2‐allyl‐3‐chloroindoles were found to be suitable substrates for benzannulation reactions with alkynes
Synthesis and C2-functionalization of indoles with allylic acetates under rhodium catalysis
作者:Mirim Kim、Jihye Park、Satyasheel Sharma、Sangil Han、Sang Hoon Han、Jong Hwan Kwak、Young Hoon Jung、In Su Kim
DOI:10.1039/c3ob41828f
日期:——
Tandem rhodium-catalyzed oxidative allylation and annulation of acetanilides with allyl acetate to afford the corresponding indoles are described. In addition, the site-selective C2 allylation, crotylation and prenylation of indoles using allylic acetates under rhodium catalysis are reported.