The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2011

Computational Assessment of Non-Heteroatom-Stabilized Carbene Complexes Reactivity: Formation of Oxazine Derivatives

“…Different studies have consistently shown that group 6 Fischer carbene complexes have an impressive synthetic potential. − In these compounds, a formal double bond arises from the carbene-to-metal σ donation and simultaneous metal–carbene π back-donation. Fischer carbene complexes are usually electrophilic and susceptible to attack at the carbenic carbon atom.…”

Carbon-rich cyclopentadienyl ruthenium allenylidene complexes

“…[12][13][14][15][16][17] Since its first examples reported independently in 1976 by Fischer 18,19 as well as by Berke, 20 the chemistry of transition metal allenylidene complexes increased significantly due to their promising chemical and physical properties and has been reviewed extensively by various authors. 14,[21][22][23][24][25][26] Transition metal allenylidene complexes turned out to be interesting and useful complexes and intermediates for a huge range of chemistry and catalytic processes. 23,[27][28][29] Especially, the building block properties of allenylidene complexes in organic syntheses as well as their catalytic properties, for example as catalysts or pre-catalysts for the olefin metathesis, [30][31][32][33][34][35][36][37][38] arouse interest.…”

Reactivity of Transition-Metal Borylene Complexes: Recent Advances in B–C and B–B Bond Formation via Borylene Ligand Coupling

“…Transition-metal complexes with multiple metal–main group element bonds have proven to be of crucial importance in industrial-scale chemical transformations. − Unarguably, the most well-known classes of these compounds are alkylidene and alkylidyne complexes, which contain metal–carbon multiple bonds. These complexes are noted for their roles in homogeneous catalysis, particularly olefin metathesis and the Fischer–Tropsch process, as well as many other useful applications in laboratory transformations such as natural product syntheses. − The demonstrated diverse reactivity of complexes containing transition metal–main group element multiple bonds and their profound usefulness have accordingly attracted intense interest from chemists.…”