Results 31 to 40 of about 42,464 (282)

A Ruthenium(CAAC-5) Olefin Metathesis Catalyst for Bioconjugation. [PDF]

open access: yesAngew Chem Int Ed Engl
The aqueous instability of ruthenium catalysts restricts olefin metathesis in biological media. A Ru(CAAC‐5) complex bearing an aniline handle is reported that remains active under biologically relevant conditions and enables bioconjugation to proteins, peptides, and an artificial metalloenzyme, providing a robust platform for olefin metathesis in ...
Graf DA   +4 more
europepmc   +2 more sources

Relay cross metathesis reactions of vinylphosphonates

open access: yesBeilstein Journal of Organic Chemistry, 2014
Dimethyl (β-substituted) vinylphosphonates do not readily undergo cross metathesis reactions with Grubbs catalyst and terminal alkenes. However, the corresponding mono- or diallyl vinylphosphonate esters undergo facile cross metathesis reactions.
Raj K. Malla   +2 more
doaj   +1 more source

A Review on Olefin Metathesis Reactions as a Green Method for the Synthesis of Organic Compounds

open access: yesJournal of Chemistry, 2021
Olefin metathesis is a metal-mediated C-C bond exchange by which the two fragments within the olefin precursor are redistributed as a result of breaking the double bond to obtain a new product. Currently, most of the synthetic organic compounds, polymers,
Atitegeb Abera Tsedalu
doaj   +1 more source

Olefin metathesis catalysts embedded in β-barrel proteins: creating artificial metalloproteins for olefin metathesis

open access: yesBeilstein Journal of Organic Chemistry, 2018
This review summarizes the recent progress of Grubbs–Hoveyda (GH) type olefin metathesis catalysts incorporated into the robust fold of β-barrel proteins.
Daniel F. Sauer   +4 more
doaj   +1 more source

The Effects of Social Variables of Age, Education and Gender on Metathesis Based on Variationist Sociolinguistics: A Case Study ‘Chokla’ in Hawrami Kurdish

open access: yesپژوهشنامه ادبیات کردی, 2023
This research report presents a quantitative investigation into the impact of social variables including age, education and gender on a specific phonological variation (Metathesis in word [tʃoklæ]) in the Hawrami language, specifically the Paveh dialect.
Nadia Safiee   +2 more
doaj   +1 more source

Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots

open access: yesAdvanced Materials, EarlyView.
A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler   +7 more
wiley   +1 more source

The cross-metathesis of methyl oleate with cis-2-butene-1,4-diyl diacetate and the influence of protecting groups

open access: yesBeilstein Journal of Organic Chemistry, 2011
Background: α,ω-Difunctional substrates are useful intermediates for polymer synthesis. An attractive, sustainable and selective (but as yet unused) method in the chemical industry is the oleochemical cross-metathesis with preferably symmetric ...
Arno Behr, Jessica Pérez Gomes
doaj   +1 more source

Dimethyl 4,5-dichlorophthalate

open access: yesIUCrData, 2021
While endeavoring to synthesize new chlorinated ligands for ruthenium-based metathesis catalysts, the title compound dimethyl 4,5-dichlorophthalate, C10H8Cl2O4, was prepared from commercially available 4,5-dichlorophthalic acid in ∼77% yield.
Daniel D. Hickstein   +3 more
doaj   +1 more source

“On Metathesis;” [PDF]

open access: yesTransactions of the Philological Society
n ...
openaire   +2 more sources

A study of the ring opening metathesis polymerization of polycyclic aromatic monomers and cyclopentenes with well defined initiators [PDF]

open access: yes, 1994
This thesis describes studies into the ring opening metathesis polymerisation (ROMP) of polycyclic aromatic monomers and cyclopentenes. Chapter 1 reviews general aspects of ring opening metathesis polymerisation of relevance to the themes of this thesis.
Sugawara, Keiji
core  

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