Results 101 to 110 of about 10,973 (280)
Metal-mediated intramolecular hydroamination and hydro(acy)alkoxylation reactions [PDF]
, 2012 This PhD thesis describes work undertaken to effect asymmetric catalysis in hydroamination and hydro(acy)alkoxylation reactions of allenes. The introductory Chapter provides an overview of recent advances in asymmetric heterofunctionalisation reactions ...
Arbour, Jannine Louise +1 more
core +1 more source
Molecules, 2010 Reaction of allyl bromide (Z)-1 and (Z)-2 with N-substituted hydroxylamine hydrochlorides in presence of tert-butoxide in tert-butanol at reflux provides a short and effective route to [1,2]isoxazolidin-5-ones 3 and [1,2]oxazin-6-ones 4.
Imen Beltaïef +2 more
doaj +1 more source
Combined effect of biopriming and polymer coating on chemical constituents of root exudation in chilli (Capsicum annuum L.) cv. K 2 seedlings [PDF]
, 2016 A study was carried out to analyze the different volatile compounds in bioprimed chilli (Capsicum annuum L.) seedlings of 15 and 30 day old. A common compound found in two stages of chilli seedlings was hydroxylamine, dimethoxydimethyl silane ...
Lakshmi, S., Nakkeeran, S., Sathya, S.
core +2 more sources
The Preparation and Intramolecular Radical Cyclisation Reactions of Chiral Oxime Ethers
Journal of the Brazilian Chemical Society, 1998 Chiral oxime ether 2 and Oxime ester 4 have been prepared by alkylation and esterification of the oxime 1. Racemic hydroxylamine 6 and chiral hydroxylamine 10 have been synthesised from N-hydroxysuccinimide and the corresponding alcohol in the presence ...
Booth Susan E. +2 more
doaj
Highly efficient aqueous phase reduction of nitroarenes catalyzed by phosphine-decorated polymer immobilized ionic liquid stabilized PdNPs [PDF]
, 2018 Palladium nanoparticles stabilized by lightly cross-linked phosphine-decorated polymer immobilized ionic liquids (PIIL) and their PEGylated counterparts (PEGPIIL) are highly effective catalysts for the aqueous phase hydrogenation and sodium borohydride ...
Backhouse, T. +9 more
core +1 more source
Facile Synthesis of N (alpha) -Protected Amino/Peptide Hydroxamic Acids Mediated by COMU [PDF]
, 2014 One-pot preparation of N (alpha) -protected amino/peptide hydroxamic acids from corresponding carboxylic acids is described using uronium-type coupling reagent COMU. The present protocol is simple and mild conditions are used.
Basavaprabhu, . +2 more
core +1 more source
High-valent copper in biomimetic and biological oxidations [PDF]
, 2016 A long-standing debate in the Cu-O2 field has revolved around the relevance of the Cu(III) oxidation state in biological redox processes. The proposal of Cu(III) in biology is generally challenged as no spectroscopic or structural evidence exists ...
Gary, J. Brannon
core +1 more source
Ambident Reactivity in the Phenyl + NO Radical Recombination
Chemistry – A European Journal, EarlyView.ABSTRACT The recombination reaction of nitric oxide (NO) with radicals via its oxygen atom, rather than the more common nitrogen site, offers an intriguing pathway to the formation of oxynitrenes. The photochemical isomerization of nitroso compounds into their corresponding oxynitrenes may involve such a step.
Virinder Bhagat +3 more
wiley +1 more source
Photocatalytic Vanadium‐Mediated Amination of Benzene With Hydroxylamine
Chemistry – A European Journal, EarlyView.Photochemical activation of N‐phenylphenothiazine (PPT) enables a selective direct benzene amination with hydroxylamine in the presence of various vanadium catalysts under mild reaction conditions. Spectroscopic and kinetic analyses identify a key vanadium(IV)‐hydroxylamine intermediate, elucidate the crucial roles of the acidic medium, the ...
Dana Králová +6 more
wiley +1 more source
, 2014 Citation: 'hydroxylamines' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.H02913 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source