Results 91 to 100 of about 4,073,254 (239)

(2E,2′E)-3-(4-{[4-(4-Hydroxy-3-methoxyphenyl)but-2-en-1-yl]oxy}phenyl)-1-(2-hydroxy-4-methoxyphenyl)prop-2-en-1-one

open access: yesMolbank, 2016
A hybrid of eugenol and a chalcone has been synthesized in good yield via cross olefin metathesis. The title compound (3) was characterized by spectroscopic data including NMR, infrared, and ESI-MS.
Muhamad S. Fareza   +2 more
doaj   +1 more source

Combining enyne metathesis with long-established organic transformations: a powerful strategy for the sustainable synthesis of bioactive molecules

open access: yesBeilstein Journal of Organic Chemistry, 2020
This account surveys the current progress on the application of intra- and intermolecular enyne metathesis as main key steps in the synthesis of challenging structural motifs and stereochemistries found in bioactive compounds.
Valerian Dragutan   +3 more
doaj   +1 more source

Kinetics of anionic polymerization of β‐myrcene in hydrocarbon solvents

open access: yesPolymer International, EarlyView.
The process of anionic polymerization of β‐myrcene in hydrocarbon solvents was examined by kinetic studies and quantum chemical calculations. Abstract The kinetics of anionic polymerization of β‐myrcene initiated by sec‐butyllithium were examined in saturated and unsaturated hydrocarbon solvents, i.e. cyclohexane, cyclohexene, 4‐vinylcyclohexene and dl‐
Alexander Rösler   +4 more
wiley   +1 more source

Heterogeneous catalysts for olefln cross-metathesis

open access: yes, 2008
Olefin metathesis has been widely used in the fields of petrochemical industry and organic synthesis. It can be classified as ring-opening metathesis, ring-opening metathesis polymerization, ring-closing metathesis and cross-metathesis, etc.
Li Xiujie   +3 more
core  

Amino acid motifs in natural products: synthesis of O-acylated derivatives of (2S,3S)-3-hydroxyleucine

open access: yesBeilstein Journal of Organic Chemistry, 2014
(2S,3S)-3-Hydroxyleucine can be found in an increasing number of bioactive natural products. Within the context of our work regarding the total synthesis of muraymycin nucleoside antibiotics, we have developed a synthetic approach towards (2S,3S)-3 ...
Oliver Ries   +4 more
doaj   +1 more source

In Situ Curing‐Enabled 3D Printing of Continuous Fiber‐Reinforced Thermosetting Composites

open access: yesJournal of Polymer Science, EarlyView.
In situ curing‐enabled the 3D printing of continuous fiber/thermoset composites, which were reviewed. Particularly, four types of in situ curing, were discussed, including Radiation‐induced curing, photothermal curing, electrothermal curing, and frontal polymerization. AI‐integrated printing was also analyzed.
Xiaofei Wu   +2 more
wiley   +1 more source

Selective Cross‐Metathesis of Highly Chelating Substrates in Aqueous Media

open access: yes, 2020
The role of non-productive chelation in olefin metathesis has been investigated for a variety of highly functionalized substrates in aqueous environment.
Brian J. J. Timmer   +6 more
core   +1 more source

α,ß-Didehydrosuberoylanilide hydroxamic acid (DDSAHA) as precursor and possible analogue of the anticancer drug SAHA

open access: yesBeilstein Journal of Organic Chemistry, 2019
An alternate synthetic route to the important anticancer drug suberoylanilide hydroxamic acid (SAHA) from its α,ß-didehydro derivative is described. The didehydro derivative is obtained through a cross metathesis reaction between a suitable terminal ...
Shital K. Chattopadhyay   +3 more
doaj   +1 more source

A Facile Synthesis of Fully Protected meso-Diaminopimelic Acid (DAP) and Its Application to the Preparation of Lipophilic N-Acyl iE-DAP

open access: yesMolecules, 2013
Synthesis of beneficial protected meso-DAP 9 by cross metathesis of the Garner aldehyde-derived vinyl glycine 1b with protected allyl glycine 2 in the presence of Grubbs second-generation catalyst was performed. Preparation of lipophilic N-acyl iE-DAP as
Hiroki Takahata   +3 more
doaj   +1 more source

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