A Palladium-Catalyzed Domino Reaction as Key Step for the Synthesis of Functionalized Aromatic Amino Acids
摘要:
A variety of substituted aromatic systems are synthesized by the Catellani reaction. These are used as precursors for novel amino acids with a basic side chain.
Stereocontrolled synthesis of anthracene β-C-ribosides: fluorescent probes for photophysical studies of DNA
摘要:
Effective, stereocontrolled syntheses of the 1-anthracenyl and 2-anthrancenyl beta-C-2'-deoxyribosides are reported and were based on a diastereofacialselective, palladium-catalyzed glycosidation of the corresponding protected (4S,5R)-4-hydroxy-5-(hydroxymethyl)dihydrofuran. (C) 2003 Elsevier Science Ltd. All rights reserved.
Enantioselective intramolecular [2+2+2] cycloaddition of triynes for the synthesis of atropisomeric chiral ortho-diarylbenzene derivatives
作者:Takanori Shibata、Kyoji Tsuchikama、Maiko Otsuka
DOI:10.1016/j.tetasy.2005.12.033
日期:2006.2
An iridium-chiral diphosphine complex was used to catalyze an enantioselective [2+2+2] cycloaddition of oxygen- and nitrogen-bridged triynes with ortho-substituted aryl groups on their termini. ortho-Diarylbenzenes with atropisomeric chiralities were obtained in high yield and enantiomeric excess.
[EN] SYNTHESIS OF UNSYMMETRIC ANTHRACENE COMPOUNDS<br/>[FR] SYNTHESE DE COMPOSES ANTHRACENIQUES DISSYMETRIQUES
申请人:EASTMAN KODAK CO
公开号:WO2005110950A1
公开(公告)日:2005-11-24
A process for forming an unsymmetric anthracene compound comprises a first step of forming a 9-perfluoroalkylsulfonate derivative of anthrone by reacting the anthrone with a perfluoroalkyl sulfonating agent, followed by a second step of contacting the reaction product with an aryl or heteroaryl boronic acid, ester or anhydride, and a palladium catalyst for a period of time sufficient to form an unsymmetric anthracene compound having at least one 9-position aromatic substituent.
A Palladium-Catalyzed Domino Reaction as Key Step for the Synthesis of Functionalized Aromatic Amino Acids
A variety of substituted aromatic systems are synthesized by the Catellani reaction. These are used as precursors for novel amino acids with a basic side chain.
Stereocontrolled synthesis of anthracene β-C-ribosides: fluorescent probes for photophysical studies of DNA
作者:Robert S. Coleman、Mark A. Mortensen
DOI:10.1016/s0040-4039(02)02791-0
日期:2003.2
Effective, stereocontrolled syntheses of the 1-anthracenyl and 2-anthrancenyl beta-C-2'-deoxyribosides are reported and were based on a diastereofacialselective, palladium-catalyzed glycosidation of the corresponding protected (4S,5R)-4-hydroxy-5-(hydroxymethyl)dihydrofuran. (C) 2003 Elsevier Science Ltd. All rights reserved.