A facile access to substituted indoles utilizing palladium catalyzed annulation under microwave enhanced conditions
摘要:
A facile access to differently substituted indoles using palladium catalyzed annulation reactions under microwave enhanced conditions has been achieved. A highly active and efficient catalytic system PdCl2/(A-taphos) for the synthesis of indole via palladium catalyzed ring annulation of ortho iodo anilines and aldehydes has been developed. (C) 2013 Elsevier Ltd. All rights reserved.
NOVEL BICYCLIC PYRIDINONES AS GAMMA-SECRETASE MODULATORS
申请人:PFIZER INC.
公开号:US20160229847A1
公开(公告)日:2016-08-11
Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula II as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
A facile access to substituted indoles utilizing palladium catalyzed annulation under microwave enhanced conditions
作者:Ranjith P. Karuvalam、Karickal R. Haridas、Ayyiliath M. Sajith、Arayambath Muralidharan
DOI:10.1016/j.tetlet.2013.07.073
日期:2013.9
A facile access to differently substituted indoles using palladium catalyzed annulation reactions under microwave enhanced conditions has been achieved. A highly active and efficient catalytic system PdCl2/(A-taphos) for the synthesis of indole via palladium catalyzed ring annulation of ortho iodo anilines and aldehydes has been developed. (C) 2013 Elsevier Ltd. All rights reserved.
The first Lewis acidcatalyzedasymmetricFriedel–Crafts alkylation reaction of ortho‐hydroxybenzyl alcohols with C3‐substituted indoles is described. A chiral N,N′‐dioxide Sc(OTf)3 complex served not only to promote formation of ortho‐quinone methides (o‐QMs) in situ but also induced the asymmetry of the reaction. This methodology enables a novel activation of ortho‐hydroxybenzyl alcohols, thus affording