328239-86-7Relevant academic research and scientific papers
Olefin metathesis in room temperature ionic liquids using imidazolium-tagged ruthenium complexes
Clavier, Hervé,Audic, Nicolas,Guillemin, Jean-Claude,Mauduit, Marc
, p. 3585 - 3599 (2005)
New recyclable imidazolium-tagged ruthenium catalysts have been developed to perform olefin metathesis in room temperature ionic liquids (RTILs). High level of recyclability combined with a high reactivity were obtained in the ring-closing metathesis (RCM) of a variety of di- or tri-substituted and/or oxygen-containing dienes. Extremely low residual ruthenium levels were detected in the RCM products (average of 7.3 ppm per run). Several examples of olefin cross-metathesis (CM) have been also studied.
Highly efficient and recyclable polymer-bound catalyst for olefin metathesis reactions
Randl,Buschmann,Connon,Blechert
, p. 1547 - 1550 (2001)
Polymer supported ruthenium alkylidene catalysts 6 and 8 have been prepared and for the first time applied to cross metathesis reactions with electron deficient alkenes. These robust complexes are re-usable, highly active and tolerate a wide variety of functional groups.
Asymmetric synthesis of β-alkynyl aldehydes by rhodium-catalyzed conjugate alkynylation
Nishimura, Takahiro,Sawano, Takahiro,Hayashi, Tamio
supporting information; experimental part, p. 8057 - 8059 (2010/01/16)
To the point: The rhodium-catalyzed asymmetric conjugate alkynylation of α, β-unsaturated aldehydes with triisopropylsilyl acetylene proceeded efficiently in methanol to give the β-alkynyl aldehydes in high yields with high enantioselectivity (see Scheme)
Synthesis and metathesis reactions of a phosphine-free dihydroimidazole carbene ruthenium complex
Gessler,Randl,Blechert
, p. 9973 - 9976 (2007/10/03)
Synthesis and activity in ring closure metathesis (RCM) and cross metathesis (CM) of the phosphine-free 1,3-dimesityl-4,5-dihydroimidazole-2-ylidene (IHMes) ruthenium alkoxybenzylidene complex 6 are reported. (C) 2000 Elsevier Science Ltd.
