Trimethylenemethane ruthenium complex

Interestingly, when 1 was treated with ruthenium complex 37 the reaction stopped at the level of stable jj -allyl complex 38. No formation of the corresponding trimethylenemethane-ruthenium complex was observed (eq 55). ... 

Leitner et al. very recently pubhshed a catalytic apphcation of a trimethylenemethane ruthenium complex. Complex 46 was formed by the reaction... 

Direct hydrogenation of CO2 to methanol was recently reported by Klankermayer and Leimer using a non-pincer catalytic system, comprised of a ruthenium(Il)-complex [(triphos)Ru-(TMM)] 26 (TMM = trimethylenemethane), and an acid, achieving turnover numbers up to 221 [95]. Catalytic N-methylation of secondary and primary aromatic amines using CO2 as Cl source and molecular... 

Bergman et al. presented a reaction sequence, in which a neopentyl ligand at a tripod ruthenium(II) complex degraded stepwise to a trimethylenemethane ligand. The reaction sequence from 29 via 30 to 31 involves C,C- and C,H-activation steps (Scheme 10.11) [29]. 

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