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
(tmp)2Zn⋅2 MgCl2⋅2 LiCl: A Chemoselective Base for the Directed Zincation of Sensitive Arenes and Heteroarenes
作者:Stefan H. Wunderlich、Paul Knochel
DOI:10.1002/anie.200701984
日期:2007.10.8
BISAMID-ZINKBASEN
申请人:Ludwig-Maximilians-Universität München
公开号:EP2147002B1
公开(公告)日:2010-09-22
A synthetic entry to 2,3-fused ring indole derivatives by ring-closing metathesis reactions
作者:M.-Lluïsa Bennasar、Ester Zulaica、Sven Tummers
DOI:10.1016/j.tetlet.2004.06.097
日期:2004.8
Six to eight-membered carbocycles and eight-membered azacycles fused to the 2,3-position of the indole ring, representing tricyclic substructures of several indole alkaloids, can be synthesized by RCM reactions from easily accessible dienic precursors.