Homogeneous Metathesis Polymerization by Well-Defined Group VI and Group VIII Transition-Metal Alkylidenes:  Fundamentals and Applications in the Preparation of Advanced Materials

Ring Opening Metathesis Polymerization of Norbornene and Derivatives by the Triply Bonded Ditungsten Complex Na[W2(µ-Cl)3Cl4(THF)2]·(THF)3

“…The reaction is catalyzed by a broad range of uni-, bi-, ternary, quaternary and multicomponent catalytic systems based mainly on mononuclear transition metal complexes along the periodic table (Ti, Nb, Ta, Cr, Mo, W, Re, Co, Ru, Os) [1][2][3][4][5][6]. Among them, protagonists are those of ruthenium, molybdenum and tungsten.…”

“…The olefin metathesis reaction induces the mild cleaving and redistribution of carbon-carbon double bonds, and ever since its discovery, it has been highly utilized in polymer science and organic synthesis (basic chemicals, pharmaceuticals) [1][2][3][4][5][6]. Important classes of olefin metathesis reactions involve the ring closing metathesis (RCM), ring opening metathesis (ROM), and ring opening metathesis polymerization (ROMP).…”

Transition metal-based polymer chemistry: a critical micro-review

“…A comprehensive review has been dedicated to the synthesis and application of these systems to the manufacture of advanced materials [69]. Apart from these systems, a large number of binary and ternary systems, which form a small amount (usually ¿ 10%) of the polymerization active species in situ, are still used for reasons of convenience [70].…”

“…Structure of the Ti-amidate species active in the polymerization of isocyanates. metathesis polymerization (ROMP), and alkyne polymerization, has been studied extensively [69,71]; nevertheless, their most important features will be addressed brie y.…”

Synthesis and ring-opening metathesis polymerization (ROMP) of new N-fluoro-phenylnorbornene dicarboximides by 2nd generation ruthenium alkylidene catalysts

“…For example, a wide range of thermally stable and solvent resistant fluorinated polynorbornenes using the ROMP classical catalysts have been synthesized by Feast et al [16][17][18]. The development of highly active metal-alkylidene catalysts opens vast opportunities in olefin metathesis and their application to the synthesis of well-defined products [19,20]. The resent generation of ruthenium alkylidene catalysts coordinated with N-heterocyclic carbene ligands makes possible to metathesize challenging cyclic and linear olefins with sterically hindered or electronically deactivating groups [21].…”