Results 31 to 40 of about 12,676 (308)

Olefin Metathesis in Cyclic Ether Formation. Direct Conversion of Olefinic Esters to Cyclic Enol Ethers with Tebbe-Type Reagents

open access: yes, 2016
Olefin Metathesis in Cyclic Ether Formation.
Christopher F. Claiborne (2503774)   +2 more
core   +2 more sources

Identification and quantitation of lipid-bound short-chain diols

open access: yesJournal of Lipid Research, 1973
Procedures are described for the hydrolysis of neutral lipid fractions containing long-chain esters and alk-1-enyl ethers of short-chain diols, and for the identification and quantitation of the constituent diols as long-chain cyclic acetals using gas ...
E. Schupp, W.J. Baumann
doaj   +1 more source

Nickel-Catalyzed Carbonylative Synthesis of Functionalized Alkyl Iodides

open access: yesiScience, 2018
Summary: Functionalized alkyl iodides are important compounds in organic chemistry and biology. In this communication, we developed an interesting nickel-catalyzed carbonylative synthesis of functionalized alkyl iodides from aryl iodides and ethers. With
Jin-Bao Peng   +5 more
doaj   +1 more source

Caveat in alkylative fragmentation of aldehyde tosylhydrazones of cyclic ethers

open access: yes, 1998
Tosylhtdrazones of aldehydes at the α-position of cyclic ethers when exposed to carbon nucleophiles produce either ring opened alkylated olefinic alcohols and/or cyclic alkylated vinyl ethers, the ratio of which is dependent on nature of hydrazone and ...
Takhi, Mohamed   +2 more
core   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

open access: yesAdvanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon   +3 more
wiley   +1 more source

Piers' borane-mediated hydrosilylation of epoxides and cyclic ethers

open access: yes, 2018
We report the first diarylborane-catalysed hydrosilylation of epoxides and cyclic ethers. Mechanistic studies on the in situ generated Piers' borane (C6F5)2BH with hydrosilanes in the presence of an epoxide revealed that an alkyloxy(diaryl)borane (C6F5 ...
Sehoon Park, Sukbok Chang, Jianbo Zhang
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

REACTIONS OF CYCLIC OXIDES UNDER BIFUNCTIONAL HETEROGENEOUS ACID-BASE CATALYSIS

open access: yesCifra: Химия
The reactions of cyclic epoxides form the basis for many industrial chemical technology processes. Unlike simple ethers, oxiranes tend to undergo nucleophilic cleavage reactions. The chemical properties of cyclic alkanes are primarily determined by their
Butenko E.   +2 more
doaj   +1 more source

Cyclic and Macrocyclic Organic Compounds - a Personal Review in Honor of Professor Leopold Ružička [PDF]

open access: yesKemija u Industriji, 2009
Ružička opened the field of cyclic molecules such as cyclic terpenes and cyclic ketones with up to 17 ring atoms. This work until now was extended in many directions such as cyclic paraffins, crown ethers and cryptands and cyclic ester amides.
Höcker¸, H.
doaj  

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