Process for reducing 3-heteroaryl-3-oxopropionic acid derivatives
申请人:——
公开号:US20030225274A1
公开(公告)日:2003-12-04
The present invention relates to a process for preparing stereoisomerically enriched 3-heteroaryl-3-hydroxycarboxylic esters by reducing 3-heteroaryl-3-oxocarboxylic esters in the presence of ruthenium-containing catalysts.
Indium-Catalyzed Cycloisomerizations of Cyclopropene-3,3-Dicarbonyl Compounds: Efficient Access to Benzo-Fused Heteroaromatics and Heterobiaryls
作者:Lien H. Phun、Joel Aponte-Guzman、Stefan France
DOI:10.1002/anie.201107717
日期:2012.3.26
Rapid access: The title reaction generates highly functionalized benzo‐annulated heterocycles and heterobiaryls. This method is amenable to a diverse array of heteroaromatics, thus allowing rapid access to benzothiophenes, benzofurans, indoles, indolizines, and pyrido[1,2‐a]indoles (see scheme; Tf=trifluoromethanesulfonyl).
快速访问:标题反应生成高度官能化的苯并环杂环和杂二芳基。该方法适用于各种各样的杂芳族化合物,因此可以快速接触苯并噻吩,苯并呋喃,吲哚,吲哚嗪和吡啶并[1,2- a ]吲哚(参见方案; Tf =三氟甲磺酰基)。
A Highly Reactive Dicationic Iridium(III) Catalyst for the Polarized Nazarov Cyclization Reaction
作者:Tulaza Vaidya、Abdurrahman C. Atesin、Ildiko R. Herrick、Alison J. Frontier、Richard Eisenberg
DOI:10.1002/anie.201000100
日期:2010.4.26
Pushing the Nazarov envelope: An electrophilic complex (1; see scheme; EDG=electron‐donating group, EWG=electron‐withdrawing group, binap=2,2‐bis(diphenylphosphanyl)‐1,1‐binaphthyl) exhibits unusual catalytic activity in the polarizedNazarovcyclizationreaction. Aryl vinyl ketones that show poor reactivity with well‐known catalysts can be readily cyclized with 1/AgSbF6 (1:1) under mild reaction conditions
Process for preparing 3-heteroaryl-3-hydroxypropanoic acid derivatives
申请人:——
公开号:US20040181058A1
公开(公告)日:2004-09-16
The invention relates to a process for preparing enantiomer-enriched 3-heteroaryl-3-hydroxypropanoic acid derivatives and 3-heteroaryl-1-aminopropan-3-ols, and to their use.
Verfahren zur Reduktion von 3-Heteroaryl-3-Oxopropionsäurederivaten
申请人:BAYER AG
公开号:EP1340746A1
公开(公告)日:2003-09-03
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung stereoisomerenangereicherter 3-Heteroaryl-3-hydroxycarbonsäureester durch Reduktion von 3-Heteroaryl-3-oxocarbonsäureestern in Gegenwart von Ruthenium enthaltenden Katalysatoren.