Results 291 to 300 of about 3,048,164 (380)

1,6-Dioxo-2-azaspiro[3.4]oct-2-enes and Related Spirocycles: Heterocycles from [3 + 2] Nitrile Oxide Cycloadditions with 2-Methyleneoxetanes, -Thietanes, and -Azetidines.

Journal of Organic Chemistry, 2023
Isoxazolines and 4-membered heterocycles are significant structural motifs in numerous synthetic intermediates and natural products. [3 + 2] Cycloadditions between enol ethers and nitrile oxides have been well studied; however, nitrile oxide ...
Jose Intano   +4 more
semanticscholar   +1 more source

Nitrile Oxides

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Volker Jaeger, Pedro A. Colinas
openaire   +1 more source

Preparation of Viscosity-Sensitive Isoxazoline/Isoxazolyl-Based Molecular Rotors and Directly Linked BODIPY-Fulleroisoxazoline from the Stable meso-(Nitrile Oxide)-Substituted BODIPY.

Organic Letters, 2019
We developed a simple methodology for the preparation of stable meso-(nitrile oxide)-substituted BODIPYs, which were characterized by spectroscopic methods and X-ray crystallography.
Yuriy V. Zatsikha   +9 more
semanticscholar   +1 more source

Polyfluorinated nitrile oxides

Chemistry of Heterocyclic Compounds, 1989
(2+3)-Cycloaddition of polyfluorinated aliphatic nitrile oxides, generated in situ, to donor dipolarophiles takes place regioselectively to give the 5-substituted isoxazolines, and is limited by the donor and steric properties of the dipolarophiles.
N. V. Vasil'ev   +3 more
openaire   +1 more source

Behaviour of nitrile oxides towards nucleophiles. Part 5. Polymerization of aromatic nitrile oxides

Journal of the Chemical Society, Perkin Transactions 1, 1979
Aromatic nitrile oxides undergo polymerization by treatment with trimethylamine in dimethyl sulphoxide. Chain lengthehing occurs via the C–O bonds, as shown by the catalytic hydrogenation of such polymers to aroylamides. The apparent degree of polymerization ranges from 15 up to ca. 100 monomer units. These polymers are quite stable in the solid state,
DE SARLO, FRANCESCO, GUARNA, ANTONIO
openaire   +2 more sources

Nitrile Oxide Cycloadditions to Olefinated Sugars.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Pedro A Colinas   +3 more
openaire   +1 more source

Cycloaddition of nitrile oxides to [60]fullerene

Chemical Communications, 1997
The addition of nitrile oxides to [60]fullerene is examined and it is found that the reaction products regenerate [60]fullerene under relatively mild conditions; the result is potentially useful for better control of fullerene functionalization.
DA ROS, TATIANA   +5 more
openaire   +4 more sources

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