Intermolecular Dehydrative Coupling Reaction of Aryl Ketones with Cyclic Alkenes Catalyzed by a Well-Defined Cationic Ruthenium−Hydride Complex: A Novel Ketone Olefination Method via Vinyl C−H Bond Activation
作者:Chae S. Yi、Do W. Lee
DOI:10.1021/om100051h
日期:2010.4.26
The cationic ruthenium hydride complex[(eta(6)-C(6)H(6))-(PCy(3))(CO)RuH](+)BF(4)(-) was found to be a highly effective catalyst for the intermolecular olefination reaction of aryl ketones with cycloalkenes. The preliminary mechanistic analysis revealed that an electrophilic ruthenium vinyl complex is the key species fir mediating both vinyl C-H bond activation and the dehydrative olefination steps of the coupling reaction.
Hydroalkenylation: palladium catalyzed co-dimerization of unactivated alkenes
作者:Nima Zargari、Gilles de Prevoisin、Yeseul Kim、Kelly Kaneshiro、Riley Runburg、Jiwon Park、Kelsey LaCroix、Reshma Narain、Byung Do Lee、Joo Ho Lee、Kyung Woon Jung
DOI:10.1016/j.tetlet.2016.01.034
日期:2016.2
A highly efficient co-dimerization of styrene and cyclopentene was developed in the presence of palladium and a BF3 source, selectively forming a new C–C bond. The complex [Pd(PPh3)2]+BF4− is believed to generate palladium hydride (Pd-H), which catalyzes the reaction between various styrenes and cyclopentene in excellent yields as single isomers. This co-catalytic system provides a new efficient C–C