Results 101 to 110 of about 30,052 (257)

The Expanding Role of Diazirines in Synthetic Methodology

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Beyond their established role in photoaffinity labeling, diazirines have emerged as versatile reagents in synthetic chemistry. This review highlights their dual reactivity as carbene and nitrogen‐transfer precursors, showcasing mechanistic insights and diverse applications in cyclopropanations, cycloadditions, skeletal editing, amination, heterocycle ...
Viktor Savic   +3 more
wiley   +1 more source

Ceria–Zirconia-Supported Pt as an Efficient Catalyst for the Sustainable Synthesis of Hydroxylamines and Primary Amines via the Hydrogenation of Oximes Under Ambient Conditions

open access: yesMolecules
Amines and hydroxylamines are essential compounds in the synthesis of pharmaceuticals and other functionalized molecules. However, the synthesis of primary amines and particularly hydroxylamines remains a challenging task.
Elena Redina   +5 more
doaj   +1 more source

(E)-3,5-Dimethoxybenzaldehyde oxime

open access: yes, 2010
In the title compound, C9H11NO3, the oxime grouping is twisted by 12.68 (6)° with respect to the dimethoxylbenzene ring. In the crystal, molecules are linked into an infinite [100] chain via O—H...N hydrogen bonds, instead of
Bin Dong, Yu Zhang, Jin-Zhe Chen
core   +1 more source

Coupled Environmental Effects in Competitive Inhibition of Dynamic Hydrazone Hydrogels

open access: yesMacromolecular Rapid Communications, EarlyView.
Environment Alters Competitive Inhibition of Crosslinks. Ion concentration, pH, and buffer composition govern exchange kinetics and network stability in dynamic benzyl‐hydrazone hydrogels. These factors are particularly important when utilizing small‐molecule competitors for enhanced control over gel mechanics, underscoring the need to control the ...
Sirilak Mekcham   +5 more
wiley   +1 more source

SYNTHESIS OF NEW NITROGEN-CONTAINING DRIMANE AND HOMODRIMANE SESQUITERPENOIDS FROM SCLAREOLIDE [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2015
The synthesis of new nitrogen-containing drimane and homodrimane sesquiterpenoids in cycle B is reported. A comparative study of the microwave (MW) assisted synthesis of drimenone versus classical conditions has been done.
Lidia Lungu
doaj  

Formaldehyde Oxime ⇌ Nitrosomethane Tautomerism

open access: yes, 2016
Formaldehyde oxime ⇌ nitrosomethane tautomerism, isomeric nitrone, and their common cations and anions are studied with Gaussian-2 theory using MP2(full)/6-31G* geometries and with density functional theory using B3LYP/6-311+G**.
Judy A. Long (3029184)   +2 more
core   +1 more source

Analysis of Carbohydrates and Glycoconjugates by Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2023–2024

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The use of MALDI mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this comprehensive review is the twelfth update of the original article published in 1999 and brings coverage of the literature to the end of 2024.
David J. Harvey
wiley   +1 more source

The Study of Electrochemical Behavior of Mono and Dinuclear Co(III) Complexes, trans-[pyCo((DO)(DOH)pn)(L)]PF6 and [{pyCo((DO)(DOH)pn)}2(μ-dicyd)](PF6)2 [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2005
Electrochemical behavior of the new mono and dinuclear Co (III)  complexes of  the types trans-[pyCo((DO)(DOH)pn )(L)]PF6   and [{py Co((DO)(DOH)pn)}2 (μ-dicyd)] (PF6)2   have been studied in acetonitrile solution.
Ali Reza Rezvani, Hassan Hadadzadeh
doaj  

Formaldehyde oxime - nitrosomethane tautomerism

open access: yes, 2001
Formaldehyde oxime ⇌ nitrosomethane tautomerism, isomeric nitrone, and their common cations and anions are studied with Gaussian-2 theory using MP2(full)/6-31G* geometries and with density functional theory using B3LYP/6-311+G**.
Long, J.A., Lammertsma, K., Harris, N.J.
core   +1 more source

Quinolines from oxime o-acetates [PDF]

open access: yes, 2004
The photochemistry of a number of arylidenecyclopentanone oxime 0 - acetates has been investigated Irradiation in methanol leads to initial E-Z geometrical isomérisation and ultimately to the formation of nitrogen containing heterocycles, via a 6îr ...
Tully, Ray
core   +2 more sources

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