Decarboxylative <i>ipso</i>
Amination of Activated Benzoic Acids
作者:Martin Pichette Drapeau、Janet Bahri、Dominik Lichte、Lukas J. Gooßen
DOI:10.1002/anie.201812068
日期:2019.1.14
the ligand and either air or N‐methylmorpholine N‐oxide as the oxidant, electron‐deficient benzoic acids undergo oxidative decarboxylative coupling with unprotected amines. This operationally simple aniline synthesis is widely applicable with respect to the amine and gives good yields, even on multigram scale. The orthogonality of this reaction to other Pd‐catalyzedcross‐couplings allows the concise
BICYCLIC HETEROCYCLES, MEDICAMENTS CONTAINING SAID COMPOUNDS, USE THEREOF, AND METHOD FOR PRODUCTION OF SAME
申请人:Himmelsbach Frank
公开号:US20110136805A1
公开(公告)日:2011-06-09
The present invention relates to bicyclic heterocycles of general formula
the tautomers, the stereoisomers, the mixtures and the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids which have valuable pharmacological properties, particularly an inhibitory effect on signal transduction mediated by tyrosine kinases, the use thereof for treating diseases, particularly tumoral diseases, as well as benign prostatic hyperplasia (BPH), diseases of the lungs and respiratory tract, and the preparation thereof.
A novel copper-catalyzed decarboxylative methylthiolation of arenecarboxylate salts has been realized using DMSO as the methylthiolation source. Various potassium arylcarboxylates underwent decarboxylative methylthiolation under air to furnish the corresponding aryl methyl thioethers in moderate to excellent yields. The reaction tolerated a wide variety of functional groups. Notably, the synthesis
Synthesis of Biaryls by Decarboxylative Hiyama Coupling
作者:Dmitry Katayev、Benjamin Exner、Lukas J. Gooßen
DOI:10.1002/cctc.201500068
日期:2015.7.13
A trimetallic palladium/copper/silver system has been developed that allows the decarboxylativeHiyamacoupling of ortho‐substituted aryl carboxylates with trialkoxyarylsilanes to give the corresponding biaryls. The cross‐coupling is catalyzed by a Pd/N‐heterocyclic carbene complex with silver carbonate aiding its reoxidation. Copper(II) fluoride acts as decarboxylation catalyst, stoichiometric oxidant
Substituierte Benzimidazolyphosphin-Verbindungen sowie ein Verfahren zur decarboxylierenden Kohlenstoff-Kohlenstoff-Verknüpfung
申请人:Saltigo GmbH
公开号:EP2757106A1
公开(公告)日:2014-07-23
Beschrieben wird ein Verfahren zur Knüpfung von Kohlenstoff-Kohlenstoff Bindungen durch Umsetzung von Carbonsäuresalzen mit Aryl-, Heteroaryl- oder Vinylalkylsulfonaten wie zum Beispiel Methansulfonaten unter Freisetzung von Kohlendioxid in Gegenwart eines bimetallischen Katalysatorsystems mit Benzimidazolylphosphin-Verbindungen als Liganden. Die Erfindung betrifft weiterhin die Benzimidazolylphosphin-Verbindungen und entsprechenden Metallkomplexe sowie Katalysatoren als solche.