Grignard Reagent/CuI/LiCl-Mediated Stereoselective Cascade Addition/Cyclization of Diynes: A Novel Pathway for the Construction of 1-Methyleneindene Derivatives
作者:De-Yao Li、Yin Wei、Min Shi
DOI:10.1002/chem.201302191
日期:2013.11.11
Diynes containing a cyclopropane group smoothly undergo a novel intramolecular and stereoselective cascade addition/cyclization reaction to produce the corresponding 1‐methyleneindene derivatives in moderate to good yields. This interesting transformation is mediated by Grignard reagent/CuI with LiCl as an additive under mild conditions. The obtained product can easily be further functionalized through
Palladium catalyzed tandem alkenyl- and aryl-C–N bond formation: a cascade N-annulation route to 4-, 5-, 6- and 7-chloroindoles
作者:Luke C. Henderson、Matthew J. Lindon、Michael C. Willis
DOI:10.1016/j.tet.2010.05.046
日期:2010.8
A series of trihalogenated alkenylbenzenes undergo consecutive palladium catalyzed inter- and intramolecular amination reactions to deliver a series of 1-functionalized mono-chloroindoles. 4-, 5-, 6- and 7-Chloroindoles can all be prepared: carbamates, anilines and amines can be employed as the N-nucleophile. (C) 2010 Elsevier Ltd. All rights reserved.