Z-Selective hydroamidation of terminal alkynes with secondary amides and imides catalyzed by a Ru/Yb-system
作者:Annette E. Buba、Matthias Arndt、Lukas J. Gooßen
DOI:10.1016/j.jorganchem.2010.08.034
日期:2011.1
to catalyze the addition of nitrogen nucleophiles to terminalalkynes under mild conditions to stereoselectively form the Z-enamide or Z-enimide products. Various secondaryamides and imides could be added across the triple bond of a range of aliphatic and aromatic alkynes. The new bimetallic catalyst system sets new standards with regard to scope and selectivity for the synthesis of Z-configured anti-Markovnikov
Ru-Catalyzed Anti-Markovnikov Addition of Amides to Alkynes: A Regio- and Stereoselective Synthesis of Enamides
作者:Lukas J. Gooßen、Jan E. Rauhaus、Guojun Deng
DOI:10.1002/anie.200462844
日期:2005.6.27
[DE] VERFAHREN ZUR ADDITION VON AMIDEN, HARNSTOFFEN. LACTAMEN UND CARBAMATEN AN ALKINE<br/>[EN] METHOD FOR THE ADDITION OF AMIDES UREAS LACTAMS AND CARBAMATES TO ALKYNES<br/>[FR] PROCEDE D'ADDITION D'AMIDES, DE CARBAMIDES, DE LACTAMES ET DE CARBAMATES A DES ALCYNES
申请人:STUDIENGESELLSCHAFT KOHLE MBH
公开号:WO2006056166A2
公开(公告)日:2006-06-01
[EN] A method for the production of N-alkenyl compounds is disclosed, in which N-H compounds are reacted with terminal alkynes in the presence of catalytic amounts of organoruthenium complexes. [FR] L'invention concerne un procédé de production de composés de N-alcényle, consistant à faire réagir des composés N-H avec des alcynes terminales en présence de quantités catalytiques de complexes d'organyle et de ruthénium. [DE] Es wird ein Verfahren zur Herstellung von N-Alkenylverbindungen beansprucht, in welchem N-H-Verbindungen mit terminalen Alkinen in Gegenwart katalytischer Mengen an Rutheniumorganylkomplexen umgesetzt werden.
A Practical and Effective Ruthenium Trichloride-Based Protocol for the Regio- and Stereoselective Catalytic Hydroamidation of Terminal Alkynes
作者:Lukas J. Gooßen、Matthias Arndt、Mathieu Blanchot、Felix Rudolphi、Fabian Menges、Gereon Niedner-Schatteburg
DOI:10.1002/adsc.200800508
日期:——
4-(dimethylamino)pyridine and potassium carbonate, effectively promotes the addition of secondaryamides, lactams and carbamates to terminalalkynes under formation of (E)-anti-Markovnikov enamides. The scope of the new protocol is demonstrated by the synthesis of 24 functionalized enamide derivatives, among them valuable intermediates for organic synthesis.