Allylation of Aldehyde and Imine Substrates with In Situ Generated Allylboronates - A Simple Route to Enatioenriched Homoallyl Alcohols
作者:Sara Sebelius、Kálmán J. Szabó
DOI:10.1002/ejoc.200500069
日期:2005.6
Allylation of aldehyde and imine substrates was achieved using easily available allylacetates and diboronate reagents in the presence of catalytic amounts of palladium. This operationally simple one-pot reaction has a broad synthetic scope, as many functionalities including, acetate, carbethoxy, amido and nitro groups are tolerated. The allylation reactions proceed with excellent regio- and stereoselectivity
Pincer Complex-Catalyzed Redox Coupling of Alkenes with Iodonium Salts via Presumed Palladium(IV) Intermediates
作者:Juhanes Aydin、Johanna M. Larsson、Nicklas Selander、Kálmán J. Szabó
DOI:10.1021/ol9010739
日期:2009.7.2
Palladium pincer complexes directly catalyze the redox coupling reactions of functionalized alkenes and iodonium salts. The catalytic process, which is suitable for mild catalytic functionalization of allylic acetates and electron-rich alkenes, probably occurs through Pd(IV) intermediates. Due to the strong metal−ligand interactions, the oxidation of phosphine and amine ligands of the pincer complexes
Palladium-Catalyzed Electrophilic Substitution of Allyl Chlorides and Acetates via Bis-allylpalladium Intermediates
作者:Olov A. Wallner、Kálmán J. Szabó
DOI:10.1021/jo026767m
日期:2003.4.1
the application of neutral and mild reaction conditions. The substitution reaction occurs with very high regioselectivity at the branched allylic terminus. Moreover, in several reactions, a high stereoselectivity was observed indicating that this new catalytic process has a high potential for stereoselectivesynthesis. The regioselectivity of the reaction can be explained on the basis of DFT calculations
Ti(II)-Mediated Tandem Inter- and Intramolecular Coupling Reaction of Unsaturated Hydrocarbons: One-Pot Preparation of Cyclopentanes and Cyclohexanes from Readily Available Acyclic Starting Materials
作者:Sentaro Okamoto、Kandasamy Subburaj、Fumie Sato
DOI:10.1021/ja0155837
日期:2001.5.1
GOMBOS, ZSUZSANNA;NYITRAI, JOZSEF;KOLONITS, PAL;KAJTAR-PEREDY, MARIA, J. CHEM. SOC. PERKIN TRANS. PT 1,(1989) N1, C. 1915-1921
作者:GOMBOS, ZSUZSANNA、NYITRAI, JOZSEF、KOLONITS, PAL、KAJTAR-PEREDY, MARIA