728005-96-7Relevant academic research and scientific papers
New regio and stereoselective intermolecular Pauson-Khand reactions of allenamides
A?orbe, Loreto,Poblador, Amalia,Domínguez, Gema,Pérez-Castells, Javier
, p. 4441 - 4444 (2004)
Intermolecular Pauson-Khand reactions are still quite limited in scope and yields. There are also few reports using allenes as the olefinic part in this version. We report herein new regio and stereoselective reactions of allenamides with several alkynes. These reactions give functionalized cyclopentenones bearing an exocyclic enamide, which can be useful synthetic intermediates.
Transition-Metal-Free Stereoselective Borylation of Allenamides
García, Lorena,Sendra, Jana,Miralles, Núria,Reyes, Efraim,Carbó, Jorge J.,Vicario, Jose L.,Fernández, Elena
, p. 14059 - 14063 (2018/09/10)
Complete stereocontrol on the transition-metal-free hydroboration of the distal double bond of allenamides could be achieved when allenamides contained acetyl substituents, which provided exclusively the Z-isomer. The consecutive Pd-catalyzed cross-coupli
Intermolecular and intramolecular pauson-khand reactions of functionalized Allenes
Gonzalez-Gomez, Alvaro,Anorbe, Loreto,Poblador, Amalia,Dominguez, Gema,Perez-Castells, Javier
supporting information; experimental part, p. 1370 - 1377 (2009/04/11)
Pauson-Khand reactions of functionalized allenes with different alkynes give cyclopentenones with generally high regio-and stereoselectivities. The allenes react through their external double bonds, giving cyclopentenones with exocyclic double bond at their β positions and predominantly with E stereochemistry. Some intramolecular reactions with allenynes connected through aromatic rings are described. These give the corresponding heterocycles with moderate to good yields. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
