Results 31 to 40 of about 2,937,461 (378)

A Weinreb Nitrile Oxide and Nitrone for Cycloaddition. [PDF]

open access: yesChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Richard W. Franck, Ajit K. Parhi
openaire   +4 more sources

1,3-Dipolar cycloadditions of 2-thio-3-chloroacrylamides with nitrile oxides and nitrones [PDF]

open access: yes, 2010
1,3-Dipolar cycloadditions of 2-thio-3-chloroacrylamides with nitrile oxides and nitrones is described. A series of novel isoxazolines are isolated from the nitrile oxide cycloadditions, whilst the isoxazolines generated from the nitrone cycloadditions ...
Kissane, Marie   +2 more
core   +1 more source

Unveiling the Different Chemical Reactivity of Diphenyl Nitrilimine and Phenyl Nitrile Oxide in [3+2] Cycloaddition Reactions with (R)-Carvone through the Molecular Electron Density Theory

open access: yesMolecules, 2020
The [3+2] cycloaddition (32CA) reactions of diphenyl nitrilimine and phenyl nitrile oxide with (R)-carvone have been studied within the Molecular Electron Density Theory (MEDT). Electron localisation function (ELF) analysis of these three-atom-components
Mar Ríos-Gutiérrez   +4 more
doaj   +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

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

Stereospecific synthesis of syn-alpha-oximinoamides by a three-component reaction of isocyanides, syn-chlorooximes, and carboxylic acids [PDF]

open access: yes, 2011
A stereospecific multicomponent reaction among isocyanides, nitrile N-oxides and carboxylic acids provides an efficient synthesis of biologically relevant syn \u3b1 ...
Galli, Simona   +3 more
core   +1 more source

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  

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   +1 more source

[3 + 2] Cycloaddition reactions of nitrile oxides generated in situ from aldoximes with alkenes and alkynes under ball-milling conditions

open access: yesGreen Chemistry Letters and Reviews, 2022
A convenient and efficient [3 + 2] cycloaddition reaction of alkenes and alkynes with the in situ generated nitrile oxides from aldoximes in the presence of NaCl, Oxone and Na2CO3 has been developed to afford a series of isoxazoles and isoxazolines at ...
Run-Kai Fang   +3 more
doaj   +1 more source

The Participation of 3,3,3-Trichloro-1-nitroprop-1-ene in the [3 + 2] Cycloaddition Reaction with Selected Nitrile N-Oxides in the Light of the Experimental and MEDT Quantum Chemical Study

open access: yesMolecules, 2021
The regioselective zw-type [3 + 2] cycloaddition (32CA) reactions of a series of aryl-substituted nitrile N-oxides (NOs) with trichloronitropropene (TNP) have been both experimentally and theoretically studied within the Molecular Electron Density Theory
Karolina Zawadzińska   +6 more
doaj   +1 more source

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