Results 81 to 90 of about 42,464 (282)

Latent ruthenium–indenylidene catalysts bearing a N-heterocyclic carbene and a bidentate picolinate ligand

open access: yesBeilstein Journal of Organic Chemistry, 2015
A silver-free methodology was developed for the synthesis of unprecedented N-heterocyclic carbene ruthenium indenylidene complexes bearing a bidentate picolinate ligand.
Thibault E. Schmid   +6 more
doaj   +1 more source

Alkyne metathesis: a comparison with alkene metathesis.

open access: yes, 2012
Metathesis reactions are a series of catalysed transformations which transpose the atoms in alkenes or alkynes.
openaire   +1 more source

Z‐Retentive Enantioselective Rh‐Catalyzed Hydroarylation of E,Z‐Dienes

open access: yesAngewandte Chemie, EarlyView.
The Rh‐catalyzed hydroarylation of conjugated E,Z‐dienoates is found to proceed with high selectivity for addition to the E‐alkene unit. Mechanistic analysis of this Z‐retentive process points towards preferred binding of the E‐alkene unit to a Rh‐aryl species to give rise to the observed selectivity and that Rh‐enolate protonolysis to be turnover ...
Wesley McNutt   +4 more
wiley   +2 more sources

Synthesis and properties of stereoregular fluoropolymers [PDF]

open access: yes, 1986
The work described in this thesis was concerned with the synthesis and metathesis ring .opening polymerization of some fluorinated norbornenes and norbornadienes.
Blackmore, Patrique Michelle
core  

Mechanochemical Ruthenium-Catalyzed Olefin Metathesis

open access: yes, 2016
We describe the development of a mechanochemical approach for Ru-catalyzed olefin metathesis, including cross-metathesis and ring-closing metathesis.
Davin Tan (1645231)   +4 more
core   +1 more source

Olefin metathesis in multiblock copolymer synthesis

open access: yesBeilstein Journal of Organic Chemistry, 2019
Multiblock copolymers constitute a basis for an emerging class of nanomaterials that combine various functional properties with durability and enhanced mechanical characteristics. Our mini-review addresses synthetic approaches to the design of multiblock
Maria L. Gringolts   +3 more
doaj   +1 more source

First Total Synthesis of Cryptopyranmoscatone A3 and Crypto­pyranmoscatone B4

open access: yesSynOpen, 2018
The first total synthesis of cryptopyranmoscatones A3 and B4 has been accomplished from d-ribose or but-3-ynol. The key steps involved in the synthesis are oxa-Michael addition, highly diastereo­selective Brown allylation, and ring closing metathesis ...
A. Maheswara Reddy, Gowravaram Sabitha
doaj   +1 more source

Synthesis of block copolymers by the conversion of living anionic polymerisation into living ROMP [PDF]

open access: yes, 2004
A methodology for the synthesis of well-defined block copolymers from living anionic polymerisation and ring opening metathesis polymerisation (ROMP) using well-defined ruthenium alkylidene initiators has been developed.
Castle, Thomas Charles
core  

Redox‐Modulated σ‐Bond Reactivity in a Radical‐Anion Dimer

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 44, 26 October 2026.
A radialene‐based radical anion σ‐dimer comprising an elongated C‐C bond exhibits orthogonal stimuli responsiveness. Homolytic cleavage of the dimer to the radical state is triggered by mechanical strain and high temperature. Dimer scission is also achieved via oxidation, resulting in formation of neutral radialenes.
Sushil Ranjan Bhatta   +8 more
wiley   +2 more sources

No Metathesis in Harmonic Serialism [PDF]

open access: yes, 2018
This paper presents a Harmonic Serialism analysis of synchronic metathesis, proposing to eliminate metathesis as an atomic operation, instead analyzing apparent metathesis cases as a result of the sequential application of simpler operations such as copy
Chikako Takahashi, Takahashi, Chikako
core   +1 more source

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