Attempts at generating metathesis-active Fe(IV) and Co(IV) complexes via the reactions of (silox)2M(THF)2, [(silox)3M][Na(THF)2] (M = Fe, Co), and related species with propellanes and triphenylboron

Review Chemistry, Applied

Recent Developments in Z-Selective Olefin Metathesis Reactions by Molybdenum, Tungsten, Ruthenium, and Vanadium Catalysts

Kamal M. Dawood et al.

Summary: This review article summarizes the effects of different catalysts on Z-selective olefin metathesis reactions and the essential roles of ligand modifications in achieving stereospecific reactions.

ADVANCED SYNTHESIS & CATALYSIS (2021)

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Article Chemistry, Multidisciplinary

Stereospecific Ring-Opening Metathesis Polymerization of Norbornene Catalyzed by Iron Complexes

Dmitry S. Belov et al.

Summary: The study explores the capability of an iron-based catalyst in performing ring-opening metathesis polymerization of olefins, demonstrating that the use of in situ prepared heteroleptic iron catalysts significantly enhances polymerization rate and selectivity.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Ring-Closing Olefin Metathesis Catalyzed by Well-Defined Vanadium Alkylidene Complexes

Dmitry S. Belov et al.

Summary: Vanadium-based catalysts have been demonstrated to catalyze ring-closing olefin metathesis reactions by well-defined V chloride alkylidene phosphine complexes, exhibiting good functional group tolerance. The properties of the imido group and phosphine were found to play a crucial role in the stability of active intermediates.

CHEMISTRY-A EUROPEAN JOURNAL (2021)

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Review Chemistry, Inorganic & Nuclear

Pushing the Bounds of Olefin Metathesis with Vanadium

Wesley S. Farrell

Summary: This minireview discusses the development of catalysts based on abundant and inexpensive vanadium for olefin metathesis transformations, with a focus on recent advancements in ring-opening metathesis polymerization of low ring-strain cyclic olefins and expansion to other olefin metathesis reactions, such as cross-metathesis.

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE (2021)

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Article Chemistry, Inorganic & Nuclear

Propellanes as Drop-In ROMP Initiators

Gregory M. George et al.

Summary: The addition of 1.1.1-propellane (111P) to (Ph3P)(3)MCl2 (M = Ru, Os) yielded 3-exo-methylenecycloalkylidene complexes capable of ring opening metathesis polymerization (ROMP) of norbornene. Phosphine substitution and self-metathesis reactions further demonstrated the reactivity of these complexes towards norbornene. The use of C-13-labeled 111P* allowed for the identification of multiple alkylidene resonances in C-13 NMR spectra.

ORGANOMETALLICS (2021)

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Article Chemistry, Multidisciplinary

[2+2] Cycloadditions with an Iron Carbene: A Critical Step in Enyne Metathesis

Melissa R. Hoffbauer et al.

Summary: The study presents a method for synthesizing an iron carbene complex that can perform [2+2] cycloaddition reactions in the presence of alkynes, resulting in the formation of a product containing a new iron carbene moiety.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Chemistry, Inorganic & Nuclear

Vanadium(V) Arylimido Alkylidene N-Heterocyclic Carbene Alkyl and Perhalophenoxy Alkylidenes for the Cis, Syndiospecific Ring Opening Metathesis Polymerization of Norbornene

Yuta Kawamoto et al.

Summary: Vanadium(V) arylimido alkylidene N-heterocyclic carbene (NHC) alkyl complexes and perhalophenoxy substituted alkylidenes have been prepared and shown to exhibit high catalytic activities in the ring-opening metathesis polymerization (ROMP) of norbornene. The perhalophenoxy derivatives demonstrated superior activities with turnover frequencies up to 208 s^(-1) and cis-syndiotactic stereoregularity up to 98% in the resulting polymers.

ORGANOMETALLICS (2021)

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Article Chemistry, Inorganic & Nuclear

Synthesis of Vanadium Oxo Alkylidene Complex and Its Reactivity in Ring-Closing Olefin Metathesis Reactions

Dmitry S. Belov et al.

Summary: This study presents the synthesis of a catalytically active V oxo alkylidene, VO(CHSiMe3)(PEt3)(2)Cl, which shows the highest reported productivity with various terminal olefins in ring-closing metathesis reactions among known V catalysts. Theoretical studies suggest that the beta-hydride elimination pathway is significantly disfavored for V oxo species, which may have important implications for future applications in this field.

ORGANOMETALLICS (2021)

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Review Chemistry, Multidisciplinary

Olefin Metathesis by First-Row Transition Metals

Dmitry S. Belov et al.

Summary: Catalytic olefin metathesis using first-row transition metals, such as scandium to nickel, offers the potential for producing fine and commodity chemicals in a cost-effective and environmentally friendly manner. The unique electronic structure of these base metals allows for unusual reactivity, although the active species involved in olefin metathesis are still not fully understood.

CHEMPLUSCHEM (2021)

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Article Chemistry, Inorganic & Nuclear

Unrealized concepts of masked alkylidenes in (PNP)FeXY systems and alternative approaches to LnXmFe(IV)=CHR

Gregory M. George et al.

POLYHEDRON (2020)

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Article Chemistry, Multidisciplinary

Ru-Catalyzed, cis-Selective Living Ring-Opening Metathesis Polymerization of Various Monomers, Including a Dendronized Macromonomer, and Implications to Enhanced Shear Stability

Jung-Ah Song et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Chemistry, Multidisciplinary

Efficient Z-Selective Olefin-Acrylamide Cross-Metathesis Enabled by Sterically Demanding Cyclometalated Ruthenium Catalysts

Yan Xu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Chemistry, Multidisciplinary

Methylenespiro[2.3]hexanes via Nickel-Catalyzed Cyclopropanations with [1.1.1]Propellane

Songjie Yu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

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Article Chemistry, Organic

Recent Advances in the Synthetic Chemistry of Bicyclo[1.1.1]pentane

Junichiro Kanazawa et al.

SYNLETT (2019)

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Article Chemistry, Inorganic & Nuclear

Dispersion forces play a role in (Me2IPr)Fe(=NAd)R2 (Ad = adamantyl; R = neoPe, 1-nor) insertions and Fe-R bond dissociation enthalpies (BDEs)

Thomas R. Cundari et al.

DALTON TRANSACTIONS (2018)

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Article Chemistry, Multidisciplinary

Structure and Reactivity of Chromium(VI) Alkylidenes

Pengcheng Wu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

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Article Chemistry, Multidisciplinary

Facile in situ generation of highly active (arylimido)vanadium(v)-alkylidene catalysts for the ring-opening metathesis polymerization (ROMP) of cyclic olefins by immediate phenoxy ligand exchange

Hitomi Hayashibara et al.

CHEMICAL COMMUNICATIONS (2018)

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Article Chemistry, Multidisciplinary

An Iron(II) Ylide Complex as a Masked Open-Shell Iron Alkylidene Species in Its Alkylidene-Transfer Reactions with Alkenes

Jian Liu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

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Article Chemistry, Multidisciplinary

Rare Examples of Fe(IV) Alkyl-Imide Migratory Insertions: Impact Fe-C Covalency in (Me2IPr)Fe(=NAd)R2 (R = neoPe, 1-nor)

Brian P. Jacobs et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

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Article Chemistry, Inorganic & Nuclear

Flipping the Oxidation State Formalism: Charge Distribution in Organometallic Complexes As Reported by Carbon Monoxide

Peter T. Wolczanski

ORGANOMETALLICS (2017)

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Review Chemistry, Multidisciplinary

Propellanes-From a Chemical Curiosity to Explosive Materials and Natural Products

Alicia M. Dilmac et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

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Review Chemistry, Inorganic & Nuclear

Synthesis of vanadium-alkylidene complexes and their use as catalysts for ring opening metathesis polymerization

Kotohiro Nomura et al.

DALTON TRANSACTIONS (2017)

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Article Chemistry, Multidisciplinary

Neutral Fe(IV) alkylidenes, including some that bind dinitrogen

Brian M. Lindley et al.

CHEMICAL COMMUNICATIONS (2016)

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Article Chemistry, Multidisciplinary

Synthesis and Characterization of a Stable High-Valent Cobalt Carbene Complex

James A. Bellow et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

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Article Chemistry, Multidisciplinary

Ring-Opening Metathesis Polymerization of Cyclic Olefins by (Arylimido)vanadium(V)-Alkylidenes: Highly Active, Thermally Robust Cis Specific Polymerization

Xiaohua Hou et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

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Article Chemistry, Inorganic & Nuclear

Fe(IV) alkylidenes are actually Fe(II), and a related octahedral Fe(II) alkylidene is a conjugated vinyl complex

Brian P. Jacobs et al.

POLYHEDRON (2016)

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Article Multidisciplinary Sciences

Kinetically controlled E-selective catalytic olefin metathesis

Thach T. Nguyen et al.

SCIENCE (2016)

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Article Chemistry, Multidisciplinary

Nitrene Insertion into C-C and C-H Bonds of Diamide Diimine Ligands Ligated to Chromium and Iron

Spencer P. Heins et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Article Chemistry, Inorganic & Nuclear

Synthesis and Reactions of 3d Metal Complexes with the Bulky Alkoxide Ligand [OCtBu2Ph]

James A. Bellow et al.

INORGANIC CHEMISTRY (2015)

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Article Chemistry, Multidisciplinary

Synthesis of Alternating trans-AB Copolymers through Ring-Opening Metathesis Polymerization Initiated by Molybdenum Alkylidenes

Hyangsoo Jeong et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

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Article Chemistry, Multidisciplinary

(Arylimido)vanadium(V)-Alkylidene Complexes Containing Fluorinated Aryloxo and Alkoxo Ligands for Fast Living Ring-Opening Metathesis Polymerization (ROMP) and Highly Cis-Specific ROMP

Xiaohua Hou et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

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Article Chemistry, Multidisciplinary

Fe(IV) alkylidenes via protonation of Fe(II) vinyl chelates and a comparative Mossbauer spectroscopic study

Brian M. Lindley et al.

CHEMICAL SCIENCE (2015)

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Article Chemistry, Multidisciplinary

Cyclic Alkyl Amino Carbene (CAAC) Ruthenium Complexes as Remarkably Active Catalysts for Ethenolysis

Vanessa M. Marx et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Article Chemistry, Multidisciplinary

(Aminocarbene)(Divinyltetramethyldisiloxane)Iron(0) Compounds: A Class of Low-Coordinate Iron(0) Reagents

Hezhong Zhang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2014)

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Article Chemistry, Multidisciplinary

Enantioselective Olefin Metathesis with Cyclometalated Ruthenium Complexes

John Hartung et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2014)

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Article Chemistry, Multidisciplinary

Synthesis, electronic structure and reactivity of bis(imino)pyridine iron carbene complexes: evidence for a carbene radical

Sarah K. Russell et al.

CHEMICAL SCIENCE (2014)

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Article Chemistry, Inorganic & Nuclear

Synthesis, Spectroscopic Characterization, and Determination of the Solution Association Energy of the Dimer [Co{N(SiMe3)2}2]2: Magnetic Studies of Low-Coordinate Co(II) Silylamides [Co{N(SiMe3)2}2L] (L = PMe3, Pyridine, and THF) and Related Species That Reveal Evidence of Very Large Zero-Field Splittings

Aimee M. Bryan et al.

INORGANIC CHEMISTRY (2013)

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Review Chemistry, Multidisciplinary

Design of Vanadium Complex Catalysts for Precise Olefin Polymerization

Kotohiro Nomura et al.

CHEMICAL REVIEWS (2011)

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Article Chemistry, Inorganic & Nuclear

Synthesis of (adamantylimido)vanadium(V)-alkyl complexes containing aryloxo ligands and their use as the catalyst precursors for ring-opening metathesis polymerization of norbornene, and ring- opening polymerization of tetrahydrofuran

Ken Suzuki et al.

JOURNAL OF ORGANOMETALLIC CHEMISTRY (2011)

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Article Multidisciplinary Sciences

Catalytic Z-selective olefin cross-metathesis for natural product synthesis

Simon J. Meek et al.

NATURE (2011)

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Article Chemistry, Inorganic & Nuclear

Syntheses of various (arylimido)vanadium(V)-dialkyl complexes containing aryloxo and alkoxo ligands, and ring-opening metathesis polymerization using a vanadium(V)-alkylidene complex

Kotohiro Nomura et al.

ORGANOMETALLICS (2008)

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Article Chemistry, Inorganic & Nuclear

Aggregation of [(tBu3SiS)MX]:: Structures of {[Br2Fe(μ-SSitBu3)2FeBr(THF)]Na(THF)4}∞, cis-[(THF)FeI]2(μ-SSitBu3)2, [(tBu3SiS)Fe]2(μ-SSitBu3)2, and comparative structure and magnetism studies of [(tBu3SiS)MX]n (M = Fe, Co, X = Cl, n=12; M = Fe, Ni, X = Br, n=12; M = Fe, X = I, n=14)

OL Sydora et al.

INORGANIC CHEMISTRY (2006)

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Review Chemistry, Multidisciplinary

Multiple metal-carbon bonds for catalytic metathesis reactions (Nobel lecture)

Richard R. Schrock

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2006)

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Review Chemistry, Multidisciplinary

Olefin-metathesis catalysts for the preparation of molecules and materials (Nobel lecture)

Robert H. Grubbs

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2006)

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Review Chemistry, Multidisciplinary

Olefin metathesis: The early days (Nobel lecture)

Y Chauvin

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2006)

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Article Chemistry, Inorganic & Nuclear

A vanadium(V) alkylidene complex exhibiting remarkable catalytic activity for ring-opening metathesis polymerization (ROMP)

J Yamada et al.

ORGANOMETALLICS (2005)

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Article Chemistry, Inorganic & Nuclear

Square planar vs tetrahedral geometry in four coordinate iron(II) complexes

EJ Hawrelak et al.

INORGANIC CHEMISTRY (2005)

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Review Chemistry, Multidisciplinary

Multielectron redox chemistry of iron porphyrinogens

J Bachmann et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2005)

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Review Chemistry, Multidisciplinary

Thermodynamics, kinetics, and mechanism of (silox)3M(olefin) to (silox)3M(alkylidene) rearrangements (silox = tBu3SiO; M = Nb, Ta)

KF Hirsekorn et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2005)

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Review Chemistry, Multidisciplinary

Preparation and molecular and electronic structures of iron(0) dinitrogen and silane complexes and their application to catalytic hydrogenation and hydrosilation

SC Bart et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2004)

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Review Chemistry, Multidisciplinary

Catalytic enantioselective C-H activation by means of metal-carbenoid-induced C-H insertion

HML Davies et al.

CHEMICAL REVIEWS (2003)

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Review Chemistry, Multidisciplinary

Molybdenum and tungsten imido alkylidene complexes as efficient olefin-metathesis catalysts

RR Schrock et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2003)

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Article Chemistry, Multidisciplinary

Remarkably stable iron porphyrins bearing nonheteroatom-stabilized carbene or (Alkoxycarbonyl) carbenes: Isolation, X-ray crystal structures, and carbon atom transfer reactions with hydrocarbons

Y Li et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2002)

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Article Chemistry, Multidisciplinary

Kinetics and mechanism of the thermal rearrangement of [1.1.1]propellane

O Jarosch et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2000)

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Article Chemistry, Inorganic & Nuclear

Binding and redox properties of iron(II) bonded to an oxo surface modeled by calix[4]arene

V Esposito et al.

INORGANIC CHEMISTRY (2000)

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Review Chemistry, Multidisciplinary

Bicyclo[1.1.1]pentanes, [n]staffanes, [1.1.1]propellanes, and tricyclo[2.1.0.0(2,5)]pentanes

MD Levin et al.

CHEMICAL REVIEWS (2000)

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Attempts at generating metathesis-active Fe(IV) and Co(IV) complexes via the reactions of (silox)2M(THF)2, [(silox)3M][Na(THF)2] (M = Fe, Co), and related species with propellanes and triphenylboron

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