Results 21 to 30 of about 14,073 (324)

Telodendrimer-Based Macromolecular Drug Design using 1,3-Dipolar Cycloaddition for Applications in Biology

open access: yesMolecules, 2020
An architectural polymer containing hydrophobic isoxazole-based dendron and hydrophilic polyethylene glycol linear tail is prepared by a combination of the robust ZnCl2 catalyzed alkyne-nitrile oxide 1,3-dipolar cycloaddition and esterification chemistry.
Hossein Yazdani   +4 more
doaj   +1 more source

A Convenient Synthesis of Novel Isoxazolidine and Isoxazole Isoquinolinones Fused Hybrids

open access: yesMolecules, 2023
Isoxazolidine, isoxazole, and isoquinolinone rings are present in the structure of several natural products and/or pharmaceutically interesting compounds.
Konstantinos A. Ouzounthanasis   +2 more
doaj   +1 more source

C-3β-Tethered Functional Cholesterol Conjugates by Nitrile Oxide Alkyne Cycloaddition (NOAC) [PDF]

open access: yes, 2014
Covalent cholesterol conjugates have been prepared by isoxazole-generating [3+2] nitrile oxide alkyne cycloaddition (NOAC) chemistry. Steroidal building blocks functionalised with either an alkyne or a nitrile oxide precursor were evaluated. The reaction
O'Sullivan, Justine   +2 more
core   +1 more source

Effect of graphene oxide on mechanical properties of different rubbers: Experiment and molecular simulation

open access: yesHecheng xiangjiao gongye, 2023
Natural rubber (NR), styrene butadiene rubber (SBR), and carboxylated nitrile rubber (XNBR) were reinforced using graphene oxide (GO). The tensile properties and binding energy of three nanocomposites were studied through experiments and molecular ...
YANG Zi-fan1, MA Wen-xiu2, FU Quan-sheng1, WEN Yan-wei2, JIA Hong-bing1?鄢
doaj   +1 more source

A Comprehensive Analysis of the Metal–Nitrile Bonding in an Organo-Diiron System

open access: yesMolecules, 2021
Nitriles (N≡CR) are ubiquitous in coordination chemistry, yet literature studies on metal–nitrile bonding based on a multi-technique approach are rare. We selected an easily-available di-organoiron framework, containing both π-acceptor (CO, aminocarbyne)
Giulio Bresciani   +5 more
doaj   +1 more source

Synthesis of 3,4-Dibenzyltetrahydrofuran Lignans (9,9′-Epoxylignanes)

open access: yesMolecules, 2013
Different strategies for the racemic or enantiospecific total syntheses of plant and mammalian 3,4-dibenzyltetrahydrofuran lignans are reviewed and compared.
Kristiina Wähälä, Monika Pohjoispää
doaj   +1 more source

The Molecular Mechanism of the Formation of Four-Membered Cyclic Nitronates and Their Retro (3 + 2) Cycloaddition: A DFT Mechanistic Study

open access: yesMolecules, 2021
In the present work, the formation of the four-membered cyclic nitronates and the retro (3 + 2) cycloaddition (retro-32CA) reaction of the 4H-[1,2]oxazete 2-oxide were studied using the density functional theory method at the MPWB1K/6-311G(d,p ...
Agnieszka Kącka-Zych
doaj   +1 more source

Preliminary Study on Effect of Chemical Composition Alteration on Elastic Recovery and Stress Recovery of Nitrile Gloves

open access: yesMATEC Web of Conferences, 2018
Nitrile gloves are widely used in the medical and automobile field due to its superiority in hypo-allergic component and chemical resistance over natural latex gloves.
Tan Kai Yang   +6 more
doaj   +1 more source

A study on selective transformation of norbornadiene into fluorinated cyclopentane-fused isoxazolines

open access: yesBeilstein Journal of Organic Chemistry, 2021
This work presents an examination of the selective functionalization of norbornadiene through nitrile oxide 1,3-dipolar cycloaddition/ring-opening metathesis (ROM)/cross-metathesis (CM) protocols. Functionalization of commercially available norbornadiene
Zsanett Benke   +2 more
doaj   +1 more source

"Effect of graphene oxide with different oxidation degrees on mechanical properties of carboxylated acrylonitrile-butadiene rubber: Experiment and molecular simulation"

open access: yesHecheng xiangjiao gongye, 2023
Graphene oxide(GO) with different oxidation degree was prepared and was used to strengthen carboxyl nitrile rubber(XNBR). And the tensile properties and binding energy were studied by experiments and molecular simulation.
FU Quan-sheng1, WEN Yan-wei2, LOU Yang2, ZHANG Xu-min1, JIA Hong-bing1 *
doaj   +1 more source

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