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Synthesis of E- and Z-trisubstituted alkenes by catalytic cross-metathesis. [PDF]

open access: yesNature, 2017
Catalytic cross-metathesis is a central transformation in chemistry, yet corresponding methods for the stereoselective generation of acyclic trisubstituted alkenes in either the E or the Z isomeric forms are not known.
Nguyen TT   +4 more
europepmc   +3 more sources

Relay cross metathesis reactions of vinylphosphonates [PDF]

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   +5 more sources

Highly efficient conversion of plant oil to bio-aviation fuel and valuable chemicals by combination of enzymatic transesterification, olefin cross-metathesis, and hydrotreating [PDF]

open access: yesBiotechnology for Biofuels, 2018
Background The production of fuels and chemicals from renewable resources is increasingly important due to the environmental concern and depletion of fossil fuel. Despite the fast technical development in the production of aviation fuels, there are still
Meng Wang   +3 more
doaj   +3 more sources

E- and Z-, di- and tri-substituted alkenyl nitriles through catalytic cross-metathesis. [PDF]

open access: yesNat Chem, 2019
Nitriles are found in many bioactive compounds, and are among the most versatile functional groups in organic chemistry. Despite many notable recent advances, however, there are no approaches that may be used for the preparation of di- or tri-substituted
Mu Y   +4 more
europepmc   +2 more sources

Frontal polymerization-triggered simultaneous ring-opening metathesis polymerization and cross metathesis affords anisotropic macroporous dicyclopentadiene cellulose nanocrystal foam [PDF]

open access: yesCommunications Chemistry, 2022
Polymeric solid foams have several beneficial properties such as their light weight, thermal insulation or shock absorbance, but it is still challenging to efficiently control the foam architecture.
Jinsu Park, Seung-Yeop Kwak
doaj   +2 more sources

Template-Directed Olefin Cross Metathesis [PDF]

open access: yesOrganic Letters, 2005
A template containing two secondary dialkylammonium ion recognition sites for encirclement by olefin-bearing dibenzo[24]crown-8 derivatives has been used to promote olefin cross metatheses with ruthenium-alkylidene catalysts. For monoolefin monomers, the
Cantrill, Stuart J.   +8 more
core   +5 more sources

Z-Selective Cross-Metathesis and Homodimerization of 3E-1,3-Dienes: Reaction Optimization, Computational Analysis, and Synthetic Applications [PDF]

open access: yesJournal of the American Chemical Society, 2016
Olefin metathesis reactions with 3E-1,3-dienes using Z-selective cyclometalated ruthenium benzylidene catalysts are described. In particular, a procedure for employing 3E-1,3-dienes in Z-selective homodimerization and cross-metathesis with terminal ...
Cannon, Jeffrey S.   +5 more
core   +3 more sources

Equilibrium data for the cross-metathesis of methyl oleate with cinnamaldehyde [PDF]

open access: yesData in Brief, 2018
Here we present equilibrium data for the cross-metathesis of methyl oleate (MO) with cinnamaldehyde (CA) obtained experimentally from liquid-phase catalytic tests conducted at 323 K.
Pablo D. Nieres   +2 more
doaj   +2 more sources

Cross-Metathesis of Methallyl Halides: Concise Enantioselective Formal Total Synthesis of (–)-Presphaerene [PDF]

open access: yesFrontiers in Chemistry, 2020
The cross-metathesis (CM) of methallyl halides catalyzed using four different ruthenium-based complexes—Grubbs catalyst, Grubbs second-generation catalyst, Hoveyda-Grubbs second-generation catalyst, and Stewart–Grubbs catalyst—was investigated.
Suresh Mandava   +5 more
doaj   +2 more sources

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