Results 91 to 100 of about 35,734 (288)

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  

Olefin-surface interactions: a key activity parameter in silica-supported olefin metathesis catalysts

open access: yes, 2022
Molecularly defined and classical heterogenous Mo-based metathesis catalysts are shown to display dis-tinct and unexpected reactivity patterns for the metathesis of long-chain α-olefins at low temperatures (< 100 °C). Namely, catalysts based on supported
Moritz, Bernhardt   +7 more
core   +1 more source

Cyclization Strategies in Carbonyl–Olefin Metathesis: An Up-to-Date Review

open access: yesMolecules
The metathesis reaction between carbonyl compounds and olefins has emerged as a potent strategy for facilitating swift functional group interconversion and the construction of intricate organic structures through the creation of novel carbon–carbon ...
Xiaoke Zhang
doaj   +1 more source

Metathesis access to monocyclic iminocyclitol-based therapeutic agents

open access: yesBeilstein Journal of Organic Chemistry, 2011
By focusing on recent developments on natural and non-natural azasugars (iminocyclitols), this review bolsters the case for the role of olefin metathesis reactions (RCM, CM) as key transformations in the multistep syntheses of pyrrolidine-, piperidine ...
Ileana Dragutan   +5 more
doaj   +1 more source

New Facile Synthesis of Adamantyl Isothiocyanates

open access: yesSynOpen, 2017
A series of adamantyl isothiocyanates containing different substituents in the nodal positions of adamantane or spacers between the adamantane and isothiocyanate group have been synthesised by using the reaction of the corresponding adamantyl amines with
Vladimir Burmistrov   +2 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. Alkyne metathesis is closely related to the same reaction for alkenes, and one catalyst that is specific to alkynes was introduced by Schrock (who with Grubbs won the Nobel prize for these discoveries) and is based on tungsten (M=W(OR)3).
openaire   +1 more source

Design and synthesis of ruthenium indenylidene-based catalysts for olefin metathesis

open access: yes, 2013
As part of a European wide effort to develop metathesis catalysts for use in fine chemical and pharmaceutical compound synthesis, this study focuses on the design and synthesis of ruthenium based catalysts for olefin metathesis.
Urbina-Blanco, César A.
core  

Synthesis and ring opening metathesis polymerization of some substituted norbornenes [PDF]

open access: yes, 1990
The work reported in this thesis is concerned with an investigation of the synthesis and ring-opening metathesis polymerization of some substituted norbomenes. The monomers investigated were 2-phenoxy-3-chloro-2,3-difluorobicyclo[2.2.
Dounis, Panagiotis
core  

Synthesis and characterisation of novel organophosphorus polymers for specific surface interactions [PDF]

open access: yes, 1992
The work described in this thesis was concerned with the synthesis and attempted Ring Opening Metathesis Polymerisations (ROMP) of a series of monocyclic phospholenes and organophosphorus derivatives of bicyclo[2.2.1]heptene using a variety of catalysts ...
Jones, Mark Stuart
core  

Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity

open access: yes, 2021
Covalent organic frameworks (COFs) offer vast structural and chemical diversity enabling a wide and growing range of applications. While COFs are well-established as homogeneous catalysts, so far, their high and ordered porosity has scarcely been ...
Felix, Ziegler   +7 more
core   +1 more source

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