Results 61 to 70 of about 938,190 (242)

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

Molybdenum-Catalyzed Ring-Closing Metathesis of Allenynes

open access: yes, 2016
A ring-closing metathesis reaction of allenynes occurred at room temperature in the presence of a molybdenum alkylidene complex to give ring-closed vinylallenes.
Masahiro Murakami (8477)   +2 more
core   +1 more source

Sequence‐Controlled Copolymers Through Selective Ring‐Opening Polymerization of Multiunit Macrolactones

open access: yesAdvanced Science, EarlyView.
Sequence‐controlled polymers were prepared through ring‐opening polymerization (ROP) exploiting esters with enhanced reactivity in the multiunit monomer induced by incorporation of a glycolate group, enabling selective ROP. ABSTRACT A new strategy for the synthesis of sequence‐controlled polymers (SCP), in which increased ester reactivity by the ...
Vincent Nieboer   +4 more
wiley   +1 more source

Synthesis of Bioactive Macrocycles Involving Ring-Closing Metathesis Strategy

open access: yesSynOpen, 2023
This review reports the synthesis of various bioactive macrocycles, involving ring-closing metathesis as a key step, developed since ca. 2000. These macrocycles exhibited biological activities such as antiviral, antifungal, antibacterial, and anticancer ...
Nasrin Jahan, Inul Ansary
doaj   +1 more source

Nonproductive Events in Ring-Closing Metathesis Using Ruthenium Catalysts

open access: yes, 2016
Nonproductive Events in Ring-Closing Metathesis Using Ruthenium ...
Kevin M. Kuhn (2289046)   +4 more
core   +1 more source

Intelligent Polymer Electrolytes for Next‐Generation Zinc‐Based Energy Storage Devices

open access: yesAdvanced Science, EarlyView.
Intelligent polymer electrolytes are organized into a three‐level hierarchy that advances zinc‐based energy storage from passive ion conduction toward active, adaptive, and intelligent operation. Molecular regulation of Zn+ coordination, water activity, desolvation, ion flux, and interfaces underpins adaptive self‐healing, anti‐freezing, adhesion, and ...
Sanath Kumar   +4 more
wiley   +1 more source

Beyond catalyst deactivation: cross-metathesis involving olefins containing N-heteroaromatics

open access: yesBeilstein Journal of Organic Chemistry, 2015
Alkenes containing N-heteroaromatics are known to be poor partners in cross-metathesis reactions, probably due to catalyst deactivation caused by the presence of a nitrogen atom.
Kevin Lafaye   +4 more
doaj   +1 more source

Total Synthesis of (-)-(7S,10R)-Calamenene and (-)-(7S,10R)-2-Hydroxycalamenene by Use of a Ring-Closing Metathesis Reaction. A Comparison of the cis- and trans-Isomers

open access: yesMolecules, 2002
The title compounds have been synthesized starting from l-menthone by application of a ring-closing metathesis reaction to confirm their reported absolute and relative stereochemistry.
Yoshinori Asakawa   +5 more
doaj   +1 more source

A Synthetic Approach Toward a Brominated Oxocane Labdane Diterpenoid Isolated From

open access: yesNatural Product Communications, 2020
The synthesis of a labdane oxocane epoxy-alcohol is described starting from the Wieland–Miescher ketone derivative via ring closing olefin metathesis of a diene derivative, targeting the total synthesis of a brominated oxocane labdane diterpenoid ...
Hisahiro Hagiwara   +4 more
doaj   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

open access: yesAdvanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony   +3 more
wiley   +1 more source

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