Results 51 to 60 of about 73,246 (246)

New possibilities for the synthesis of reactive functional aminopolysilanes using azide pathway [PDF]

open access: yesMemoirs of the Scientific Sections of the Romanian Academy, 2014
Two new reaction frameworks with high stereospecificity and high yields are described. Azidopolysilanes offers multiple options for obtaining aminopolysilanes, either by reducing the azido group using the Staudinger technique or by Huisgen 1,3 ...
Andrei Dascalu   +2 more
doaj  

Preparation and Crystal Structure of 5-Azido-3-nitro-1H-1,2,4-triazole, Its Methyl Derivative and Potassium Salt

open access: yesCrystals, 2012
5-Azido-3-nitro-1H-1,2,4-triazole, its methyl derivative and potassium salt were synthesized and characterized by various spectroscopic methods. The crystal structures were determined by low temperature single crystal X-ray diffraction.
Thomas M. Klapötke, Dániel Izsák
doaj   +1 more source

Metal-free double azide addition to strained alkynes of an octadehydrodibenzo[12]annulene derivative with electron-withdrawing substituents

open access: yesBeilstein Journal of Organic Chemistry
Strain-promoted azide–alkyne cycloaddition (SpAAC) is a powerful tool in the field of bioconjugation and materials research. We previously reported a regioselective double addition of organic azides to octadehydrodibenzo[12]annulene derivatives with ...
Naoki Takeda   +3 more
doaj   +1 more source

Chemistry of Tetradentate [C,N : C,N] Iminophosphorane Palladacycles: Preparation, Reactivity and Theoretical Calculations

open access: yesChemistryOpen, 2020
A theoretical and experimental study of tetradentate [C,N : C,N] iminophosphorane palladacycles was carried out for the purpose of elucidating their behavior as compared to the parent Schiff base analogues to determine the prospect of encountering new A ...
Dr. Paula Munín‐Cruz   +5 more
doaj   +1 more source

Arrangement of Azidomethyl Group in Lupinine Azide: Structural and Spectroscopic Properties

open access: yesMolecules
Quinolizidine derivatives are an important class of substances that are used in the pharmaceutical industry. In previous studies, the synthesis of these substances is carried out using lupinine azide (IUPAC: 1-(azidomethyl)octahydro-2H-quinolizine ...
Kymbat Kopbalina   +4 more
doaj   +1 more source

Continuous multistep synthesis of 2-(azidomethyl)oxazoles

open access: yesBeilstein Journal of Organic Chemistry, 2018
An efficient three-step protocol was developed to produce 2-(azidomethyl)oxazoles from vinyl azides in a continuous-flow process. The general synthetic strategy involves a thermolysis of vinyl azides to generate azirines, which react with bromoacetyl ...
Thaís A. Rossa   +4 more
doaj   +1 more source

Two-Step Azidoalkenylation of Terminal Alkenes Using Iodomethyl Sulfones

open access: yesMolecules, 2019
The radical azidoalkylation of alkenes that was initially developed with α-iodoesters and α-iodoketones was extended to other activated iodomethyl derivatives.
Nicolas Millius   +2 more
doaj   +1 more source

EFFECTS OF MECHANICAL FAULT IN THE ENERGETICALLY ACTIVE WHISKERS

open access: yesВестник Кемеровского государственного университета, 2014
The paper considers the results on flexural deformation detected by the authors in whiskers of lead azides and potassium nitrate when exposed to light, electric field and temperature.
F. I. Ivanov, E. V. Isakova
doaj  

Copper-on-Magnetically Activated Carbon-Catalyzed Azide-Alkyne Click Cycloaddition in Water [PDF]

open access: gold, 2022
Noura Aflak   +6 more
openalex   +1 more source

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