Results 21 to 30 of about 2,971,196 (335)
, 2020 The reaction mechanisms of [3+2] cycloaddition (32CA) between the α,β-unsaturated selenoaldehyde with nitrone and nitrile oxide were investigated theoretically using the molecular electron density theory (MEDT). Selenoaldehyde has two unsaturations which
Haydar A. Mohammad-Salim +3 more
semanticscholar +1 more source
A Weinreb Nitrile Oxide and Nitrone for Cycloaddition. [PDF]
ChemInform, 2004 AbstractFor Abstract see ChemInform Abstract in Full Text.
Richard W. Franck, Ajit K. Parhi
openaire +4 more sources
Metal Catalysis Acting on Nitriles in Early Earth Hydrothermal Systems
Life, 2023 Hydrothermal systems are areas in which heated fluids and organic molecules rush through basaltic material rich in metals and minerals. By studying malononitrile and acetonitrile, we examine the effects of metal and mineral nanoparticles on nitrile ...
Miranda Sturtz, Christopher House
doaj +1 more source
Synthesis of Spiroisoxazolines by 1,3-Dipolar Cycloaddition
Molecules, 1997 The cycloaddition of the chiral nitrile oxide 1 to 1-R-substituted 3,3-methylene-5,5-dimethyl-2-pyrrolidinones 2 (where R is H, n-butyl-, 1,1-dimethylethoxycarbonyl-, 1-methylethenyl- and acetyl-) proceeds regioselectively under the formation of ...
Peter Ertl +3 more
doaj +1 more source
Molecules, 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
Molecules, 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
A Comprehensive Analysis of the Metal–Nitrile Bonding in an Organo-Diiron System
Molecules, 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
Hecheng 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
Synthesis of 3,4-Dibenzyltetrahydrofuran Lignans (9,9′-Epoxylignanes)
Molecules, 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
MATEC 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