Rhodium-catalyzed selective C–H functionalization of NNN tridentate chelating compounds via a rollover pathway
作者:Seung Youn Hong、Jaesung Kwak、Sukbok Chang
DOI:10.1039/c5cc09960a
日期:——
Reported herein is the first example of a Rh(NHC)-catalyzed selective bis C-H alkylation of NNN tridentate chelatingcompounds in reaction with alkenes. The observed excellent site-selectivity can readily be explained...
film of an organometallic polymer and CO translates odorless but toxic carbonmonoxide into 1,5-cyclooctadiene. The human olfactory system is able to perceive the unpleasant smell of this olefin at concentrations below 0.001 ppm. Based on the malodorogenic approach, humans are then capable of smelling the presence of carbonmonoxide.
Rh(I)-Catalyzed Formal [6 + 2] Cycloaddition of 4-Allenals with Alkynes or Alkenes in a Tether
作者:Yoshihiro Oonishi、Akihito Hosotani、Yoshihiro Sato
DOI:10.1021/ja203824v
日期:2011.7.13
Rh(I)-catalyzed formal [6 + 2] cycloaddition of allenal 6 having an alkyne or alkene in a tether proceeded smoothly, giving 5-8- and 6-8-fused bicyclic ketone derivatives 7 in good to excellent yields. It was also found that cyclization of enantiomericallyenriched (S)-6a (94% ee) gave cyclic ketone derivative (S)-7a in high yield with reasonable chirality transfer (86% ee). This result indicates that
[EN] METHOD OF PREPARING METAL COMPLEXES OF FORMULA Z-M, IN PARTICULAR CARBENE-METAL COMPLEXES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPLEXES MÉTALLIQUES DE FORMULE Z-M, EN PARTICULIER DE COMPLEXES CARBÈNE-MÉTAL
申请人:UNIV GENT
公开号:WO2020048925A1
公开(公告)日:2020-03-12
The present invention relates to an improved method of preparing metal complexes, in particular carbene-metal complexes. The method comprises the step of subjecting a salt of formula Z+-X- and a non-ionic metal salt of formula MLn or subjecting a metallate of formula Z+…MLnX- to a mechanical mixing process in the presence of a base. The method allows to formation of heterocyclic carbene– metal complexes such as a nitrogen-containing heterocyclic carbene (NHC)–metal complexes. The invention also relates to the use of metal complexes, in particular carbene-metal complexes such as heterocyclic carbene-metal complexes obtainable by the method according to the present invention as catalysts.