Palladium-Catalyzed Synthesis of N-Aryloxazolidinones from Aryl Chlorides
摘要:
An efficient method for intermolecular N-arylation of oxazolidinones using Pd(2)dba(3) and various phosphine ligands in the presence of a weak base is reported. The conditions allow the use of cheaper aryl chlorides containing functionalities such as enolizable ketones, amides, etc., which would be incompatible with other coupling methods. The coupling reaction can be used to prepare enantiopure N-aryl beta-amino alcohols. Depending on the stereoelectronic nature of the aryl chloride, careful choice of ligand was necessary for the success of these reactions.
Ligand-free Ullmann-type arylation of oxazolidinones by diaryliodonium salts
作者:Ekaterina V. Podrezova、Alina A. Okhina、Artem D. Rogachev、Sergey V. Baykov、Andreas Kirschning、Mekhman S. Yusubov、Natalia S. Soldatova、Pavel S. Postnikov
DOI:10.1039/d2ob02122f
日期:——
the copper-catalyzed N-arylation of hindered oxazolidinones using diaryliodoniumsalts. The method succeeds in good to excellent yields for the arylation of 4-alkyloxazolidinones, including sterically hindered isopropyl- and tert-butyl-substituted. The efficiency of the method was demonstrated for a wide range of diaryliodoniumsalts – symmetric and unsymmetric as well as ortho-substituted derivatives
Cu-Catalyzed N-Arylation of Oxazolidinones: An Efficient Synthesis of the κ-Opioid Receptor Agonist CJ-15161
作者:Arun Ghosh、Janice E. Sieser、Stéphane Caron、Michel Couturier、Kristina Dupont-Gaudet、Melina Girardin
DOI:10.1021/jo052060z
日期:2006.2.1
An efficient method for intermolecular N-arylation of oxazolidinones using catalytic copper in the presence of a bidentate ligand is reported. The conditions allow the use of copper and can be used to prepare enantiopure N-aryl beta-amino alcohols. A short, scalable synthesis of CJ-15,161 is also reported. The required amines were obtained from the precursor alpha-amino acids or, more conveniently, from the corresponding 1,2-amino alcohols.
METHODS FOR PREPARING N-ARYLATED OXAZOLIDINONES VIA A COPPER CATALYZED CROSS COUPLING REACTION
申请人:Pfizer Products Inc.
公开号:EP1562916A1
公开(公告)日:2005-08-17
Methods for Preparing N-Arylated Oxazolidinones Via A Copper Catalyzed Cross Coupling
申请人:Ghosh Arun
公开号:US20070049759A1
公开(公告)日:2007-03-01
Methods for the preparation of N-arylated oxazolidinone compounds via a copper catalyzed cross coupling reaction are disclosed.