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Metathesis ring-opening

CHEMO- AND REGIOSELECTIVITY ENHANCEMENT IN SOLID-SUPPORTED REACTIONS [Pg.180]


AQUACULTURECHEMICALS] (Vol3) ROMP. See Ring-opening metathesis polymerization... [Pg.858]

Aqueous ring-opening metathesis polymerization (ROMP) was first described in 1989 (90) and it has been appHed to maleic anhydride (91). Furan [110-00-9] reacts in a Diels-Alder reaction with maleic anhydride to give exo-7-oxabicyclo[2.2.1]hept-5-ene-2,3—dicarboxylate anhydride [6118-51 -0] (24). The condensed product is treated with a soluble mthenium(Ill) [7440-18-8] catalyst in water to give upon acidification the polymer (25). Several apphcations for this new copolymer have been suggested (91). [Pg.453]

Ring-Opening Metathesis Polymerization. Several new titanacyclobutanes have been shown to initiate living ring-opening metathesis polymerization (ROMP) systems. These have been used to make diblock and triblock copolymers of norbomene [498-66-8] (N) and its derivatives (eg, dicyclopentadiene [77-73-6] (D)) (Fig. 2) (41). [Pg.181]

A drawback to the Durham method for the synthesis of polyacetylene is the necessity of elimination of a relatively large molecule during conversion. This can be overcome by the inclusion of strained rings into the precursor polymer stmcture. This technique was developed in the investigation of the ring-opening metathesis polymerization (ROMP) of benzvalene as shown in equation 3 (31). [Pg.35]

When a mixture of alkenes 1 and 2 or an unsymmetrically substituted alkene 3 is treated with an appropriate transition-metal catalyst, a mixture of products (including fi/Z-isomers) from apparent interchange of alkylidene moieties is obtained by a process called alkene metathesis. With the development of new catalysts in recent years, alkene metathesis has become a useful synthetic method. Special synthetic applications are, for example, ring-closing metathesis (RCM) and ring-opening metathesis polymerization (ROM) (see below). [Pg.10]

The reversal of ring-closing metathesis, namely ring-opening metathesis, is also a synthetically useful reaction. With strained (small-ring) cycloalkenes, e.g. 12, the equilibrium of the reaction lies on the side of the open-chain product 13 ... [Pg.12]

Ring-opening metathesis polymerization (ROMP) of 1,4-cyelooctadiene was used to prepare poly(l,4-B) terminated with halo end groups.647 This was then used as a macroinitiator of ATRP with heterogeneous Cu bpy catalysts to form PS- >/ti /r-poly(l,4-B)-WoeA -PS and PMMA-Moc.T-poly(l,4-B)-Wof A-PMMA. [Pg.546]

Scheme 2 Different modes of the olefin metathesis reaction cross metathesis (CM), ringclosing metathesis (RCM), ring-opening metathesis (ROM), acyclic diene metathesis polymerization (ADMET), and ring-opening metathesis polymerization (ROMP)... Scheme 2 Different modes of the olefin metathesis reaction cross metathesis (CM), ringclosing metathesis (RCM), ring-opening metathesis (ROM), acyclic diene metathesis polymerization (ADMET), and ring-opening metathesis polymerization (ROMP)...
Interconversion of - and Z-macrocycles in metathesis reactions proceeds via a ring-opening metathesis/ring-closing metathesis sequence thus, more... [Pg.242]

Alkyne cross metathesis Acyclic diene metathesis Asymmetric ring-closing metathesis Asymmetric ring-opening metathesis Cross metathesis... [Pg.270]

The polynorbornenes X bearing cyclotriphosphazenes with -0(CH2CH20)x-CH3 (x=l, 2,3,7.2) side groups have been prepared via ring opening metathesis polymerization (ROMP) and complexed with LiS03Cp3 and LiN(S02Cp3)2 (10-60% molar ratios) by Allcock [619,620]. [Pg.209]

The last decade has witnessed the growing use of olehn metathesis in organic synthesis.Ring closing metathesis RCM, Eq. (6)] and ring opening metathesis [ROM, Eq. (7)1 as well as a combination of these transformations have resulted in providing opportunities to build molecules of interest and importance. [Pg.191]

Lu H, Wang J, Lin Y, Oieng J (2009) One-pot synthesis of brush-like polymers via integrated ring-opening metathesis polymerization and polymerization of amino acid N-carboxyanhy-drides. J Am Oiem Soc 131 13582-13583... [Pg.25]

Ionic, Ziegler-Natta and Ring-Opening Metathesis Polymerization By V. Dragiitan and R. Streck... [Pg.894]

Catalysts with an unsymmetrical NHC ligand featuring a vinylic side chain have the unique ability to metathesise their own ligand to form a metaUacycle as shown in Scheme 3.7 [119], Ring opening metathesis will then incorporate the monomers, e.g. cyclooctene, into that cycle until a cyclic polymer is cleaved by another intramolecular metathesis step. The catalyst is recovered and can restart this endless route to cyclic polymers [121]. [Pg.87]


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1,3,5,7-Cyclooctatetraene, ring-opening metathesis polymerization

1,4-cyclooctadiene, ring-opening metathesis

1,4-cyclooctadiene, ring-opening metathesis polymerization

Approaches using Ring-opening Metathesis Polymerization (ROMP)

Arene complexes ring-opening metathesis polymerization

Asymmetric ring opening cross metathesis AROCM)

Asymmetric ring-opening metathesis reactions

Benzvalene, ring-opening metathesis polymerization

Chain-growth polymerizations ring-opening metathesis

Chemical synthesis, polymers ring-opening metathesis

Cyclic dienes ring-opening metathesis polymerization

Cyclic polymers ring opening metathesis

Cycloalkenes ring-opening metathesis polymerization

Cyclobutenes ring-opening metathesis polymerization

Cyclohexenes ring-opening metathesis polymerization

Cyclooctadienes ring-opening metathesis polymerization

Cyclooctatetraenes ring-opening metathesis polymerization

Cyclooctene ring opening metathesis polymerization

Cyclooctenes ring-opening metathesis polymerization

Cyclopentene ring-opening metathesis polymerization

Cyclopentenes ring-opening metathesis polymerization

Dicyclopentadiene ring opening metathesis polymerization

Dicyclopentadienes ring-opening metathesis polymerization

Dienes from ring opening cross metathesis

Evidence from ring-opening metathesis polymerization (ROMP)

Ferrocene polymers ring-opening metathesis polymerization

Ferrocene-functionalized polymer ring-opening metathesis

Ferrocenophanes, ring-opening metathesis

Ferrocenophanes, ring-opening metathesis polymerization

Frontal ring-opening metathesis

Frontal ring-opening metathesis polymerization

Highly efficient ring-opening metathesis polymerization (ROMP)

Kinetics ring-opening metathesis

Lactones ring-opening metathesis

Latent Ruthenium Catalysts for Ring Opening Metathesis Polymerization (ROMP)

Living polymers ring opening metathesis polymerization

Living ring opening metathesis

Living ring opening metathesis polymerization

Metathesis ring closure/opening

Norbomadienes ring-opening metathesis polymerization

Norbomene ring-opening metathesis polymerization

Norbomenes ring-opening cross metathesis

Norbomenes, ring-opening metathesis

Norbomenes, ring-opening metathesis polymerization

Norbornadiene ring-opening metathesis polymerization

Norbornene complexes, ring-opening metathesis

Norbornene complexes, ring-opening metathesis polymerization

Norbornene monomers, ring-opening metathesis

Norbornene monomers, ring-opening metathesis polymerization

Norbornenes ring opening metathesis polymerization

Olefin metathesis ring-opening

Olefin metathesis ring-opening polymerization

Phenylenevinylene Block Copolymers by Ring-Opening Metathesis Polymerization

Phenylenevinylene Homopolymers and Block Copolymers via Ring-Opening Metathesis Polymerization

Poly ring-opening metathesis

Poly ring-opening metathesis polymerization

Polyalkenamers metathesis ring-opening polymerization

Polymer synthesis ring opening metathesis polymerization

Polynorbomene via ring opening metathesis polymerization

Polypentenamer via ring opening metathesis polymerization

RING-OPENING METATHESIS POLYMERIZATION OF CYCLIC ALKENES

ROMP (Ring-opening metathesis

ROMPs, ring-opening olefin metathesis

Ring Opening Cross-Metathesis ROCM)

Ring metathesis

Ring opening alkene metathesis

Ring opening alkene metathesis polymerization

Ring opening cross metathesis

Ring opening cross metathesis asymmetric

Ring opening metathesis amphiphilic polymers

Ring opening metathesis copolymerizations

Ring opening metathesis derivatives

Ring opening metathesis monomer synthesis

Ring opening metathesis polymerization Subject

Ring opening metathesis polymerization catalyst incorporation

Ring opening metathesis polymerization polymer thermodynamics

Ring opening metathesis polymerization polymers

Ring opening metathesis polymerization products

Ring opening metathesis polymerization self-healing polymers

Ring opening metathesis polymers

Ring opening metathesis synthesis

Ring opening-closing metathesis

Ring-Opening Metathesis Polymerization of Norbornene Using an MTO Catalyst

Ring-opening Metathesis Polymerization (ROMP) Approach to Polymer-grafted CNTs

Ring-opening cross-metathesis reaction

Ring-opening insertion metathesis polymerization

Ring-opening metathesis catalysts

Ring-opening metathesis characteristics

Ring-opening metathesis copolymerization

Ring-opening metathesis copolymerization ROMP)

Ring-opening metathesis enynes

Ring-opening metathesis heterocyclic monomers

Ring-opening metathesis pathways

Ring-opening metathesis polymerisation

Ring-opening metathesis polymerisation ROMP)

Ring-opening metathesis polymerizatio

Ring-opening metathesis polymerization

Ring-opening metathesis polymerization Group 6 initiators

Ring-opening metathesis polymerization ROMP polymers

Ring-opening metathesis polymerization ROMP)

Ring-opening metathesis polymerization alkyne

Ring-opening metathesis polymerization applications

Ring-opening metathesis polymerization carbene synthesis

Ring-opening metathesis polymerization characteristics

Ring-opening metathesis polymerization cross-linking

Ring-opening metathesis polymerization described

Ring-opening metathesis polymerization general aspects

Ring-opening metathesis polymerization initiators

Ring-opening metathesis polymerization mechanism

Ring-opening metathesis polymerization molecular weight control

Ring-opening metathesis polymerization norbomadiene

Ring-opening metathesis polymerization of cyclic alkynes

Ring-opening metathesis polymerization of norbornene

Ring-opening metathesis polymerization organometallic polymers

Ring-opening metathesis polymerization overview

Ring-opening metathesis polymerization substituted norbornenes

Ring-opening metathesis polymerization techniques

Ring-opening metathesis polymerization transfer agents

Ring-opening metathesis polymerization utility

Ring-opening metathesis precipitation polymerization

Ring-opening metathesis regioselective reactions

Ring-opening metathesis ruthenium

Ring-opening metathesis sequence, olefins

Ring-opening metathesis stereochemistry

Ring-opening metathesis thiophenes

Ring-opening olefin metathesis polymerization ROMPSs)

Surface-initiated ring-opening metathesis

Surface-initiated ring-opening metathesis polymerization

Transition Metal-catalyzed Ring-opening Metathesis Polymerization (ROMP) of Metallocenophanes

Variation 1 Ring-Opening Metathesis Polymerization (ROMP)

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