17380-84-6Relevant articles and documents
Grubbs Metathesis Enabled by a Light-Driven gem-Hydrogenation of Internal Alkynes
Biberger, Tobias,Fürstner, Alois,Zachmann, Raphael J.
, p. 18423 - 18429 (2020/08/25)
[(NHC)(cymene)RuCl2] (NHC=N-heterocyclic carbene) complexes instigate a light-driven gem-hydrogenation of internal alkynes with concomitant formation of discrete Grubbs-type ruthenium carbene species. This unorthodox reactivity mode is harnessed in the form of a “hydrogenative metathesis” reaction, which converts an enyne substrate into a cyclic alkene. The intervention of ruthenium carbenes formed in the actual gem-hydrogenation step was proven by the isolation and crystallographic characterization of a rather unusual representative of this series carrying an unconfined alkyl group on a disubstituted carbene center.
Selective one-pot carbon-carbon bond formation by catalytic boronation of unactivated cycloalkenes and subsequent coupling
Olsson, Vilhelm J.,Szabo, Kalman J.
, p. 6891 - 6893 (2008/09/17)
(Chemical Equation Presented) Two channels: Cycloalkenes can be selectively functionalized by iridium-catalyzed boronation followed by Suzuki coupling with an aryl iodide or reaction with an aldehyde. The selectivity for allylic and vinylic functionalization can be controlled by a slight change of the reaction conditions. DBU = 1,8-diazabicyclo-[5.4.0]undec-7-ene, pin = pinacol.