Results 11 to 20 of about 12,782 (291)

Reaction of Nitrilimines and Nitrile Oxides with Hydrazines, Hydrazones and Oximes

open access: yesMolecules, 2005
This review article discusses the reaction of nitrilimines and nitrile oxides with hydrazines, hydrazones, and oximes. Three reaction modes were observed.
Adel M. Awadallah   +1 more
doaj   +3 more sources

Catalytic Enantioselective [3 + 2] Cycloaddition of α-Keto Ester Enolates and Nitrile Oxides. [PDF]

open access: yesJ Am Chem Soc, 2017
Bartlett SL   +6 more
europepmc   +2 more sources

Ultrasound-assisted one-pot three-component synthesis of new isoxazolines bearing sulfonamides and their evaluation against hematological malignancies

open access: yesUltrasonics Sonochemistry, 2021
In the present study, following a one-pot two-step protocol, we have synthesized novel sulfonamides-isoxazolines hybrids (3a-r) via a highly regioselective 1,3-dipolar cycloaddition. The present methodology capitalized on trichloroisocyanuric acid (TCCA)
Aicha Talha   +9 more
doaj   +1 more source

Studies on the [2+3] cycloaddition reaction of nitrile oxides to abietic acid esters [PDF]

open access: yesJournal of the Serbian Chemical Society, 2019
[2+3] Dipolar cycloadditions of aromatic nitrile oxides to abietic acid esters were investigated. The reactions showed complete site selectivity and regioselectivity, while the stereoselectivity depended on the structures of the dipolarophiles.
Gucma Mirosław   +3 more
doaj   +1 more source

Mechanochemical Dimerization of Aldoximes to Furoxans

open access: yesMolecules, 2022
Solvent-free mechanical milling is a new, environmentally friendly and cost-effective technology that is now widely used in the field of organic synthesis.
Run-Kai Fang   +3 more
doaj   +1 more source

One Step Regioselective Synthesis of 5-Aminoisoxazoles from Nitrile Oxides and α-Cyanoenamines

open access: yesMolecules, 2004
The 1,3-dipolar cycloaddition of nitrile oxides to 1-cyanoenamines gives 5-aminoisoxazoles regioselectively. Moderate to good yields could be obtained depending on the method used to generate the nitrile oxides. The intermediate isoxazolines could not be
Aïcha Derdour   +2 more
doaj   +1 more source

Orthogonal, metal-free surface modification by strain-promoted azide–alkyne and nitrile oxide–alkene/alkyne cycloadditions [PDF]

open access: yes, 2012
In this article we present a fast and efficient methodology for biochemical surface patterning under extremely mild conditions. Micropatterned azide/benzaldoxime-surfaces were prepared by microcontact printing of a heterobifunctional cyclooctyne oxime ...
Arlinghaus, Heinrich F   +6 more
core   +1 more source

Selection of elastomeric membranes for the removal of volatile organics from water [PDF]

open access: yes, 1993
A wide range of homogeneous elastomeric membranes has been prepared using dicumylperoxide as a general cross-linking agent. The membranes have been used for both equilibrium sorption measurements and steady-state pervaporation experiments to study ...
Mulder, M.H.V.   +4 more
core   +2 more sources

Reactions of 5-Aroylmethylene-3-benzyl-4-oxo-2-thioxo-1,3-thiazolidines with Nitrile Oxides

open access: yesMolecules, 2001
E,Z-5-Aroylmethylene-3-benzyl-4-oxo-2-thioxo-1,3-thiazolidines (3a-c) react with 4-methoxy and 4-chlorophenylnitrile oxides (4a and b) in pyridine solution to afford one or more of the following compounds: Z-3, Z-2,4-dioxo analogues 5 and 3,6-diaryl-1,4 ...
Ahmed S. A. Youssef, Kamal A. Kandeel
doaj   +1 more source

Synthesis, DFT Study and Antibacterial Activity of some Isoxazoline Derivatives Containing 1,4-benzothiazin-3-one Nucleus Obtained Using 1,3-dipolar Cycloaddition Reaction [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
Novel series of isoxazoline derivatives containing 1,4-benzothiazin-3-one ring (6a-h) were synthesized via 1,3-dipolar cycloaddition reactions of arylnitrile oxides 5a-d on 4-allyl-2-(substituted)-1,4-benzothiazin-3-ones 3 and 4 led to polyheterocyclic ...
Sebbar Nada Kheira   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy