nucleophilic


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nucleophilic

(ˌnjuːklɪəʊˈfɪlɪk)
adj
(Chemistry) chem having or involving an affinity for positive charge. Nucleophilic reagents (nucleophiles) are molecules, atoms, and ions that behave as electron donors. Compare electrophilic
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations
nucléophile
References in periodicals archive ?
GSTs catalyze the nucleophilic addition of the thiol of reduced glutathione to electrophilic centers in endogenous and exogenous compounds.
Contributors, who are chemists and others from Europe, the US, and Asia, describe the physical and chemical properties of water; acid catalysis; metal-mediated C-C bond formations; pericyclic reactions; catalyzed reductions; oxidations; nucleophilic additions and substitutions; reactions in nearcritical water; biocatalysis; organic synthesis in aqueous suspension; and the chemical manufacturing industry perspective on the topic.
has been granted a patent for a process for preparing a polymer-modified pigment which is comprised of combining, in any order, at least one pigment having attached at least one nucleophilic group comprising a group having the formula X-Sp-[PA], at least one polymer comprising at least one carboxylic acid group or salt thereof, and at least one coupling agent, wherein X, which is directly attached to the pigment, represents an arylene, heteroarylene, or alkylene group, Sp represents a spacer group, and PA represents a polyamine group, a salt thereof, or an acyl derivative thereof, and wherein PA further comprises at least one substituent group attached to the pigment.
Although DBNPA is compatible with many chemical classes, including oxidizing agents, it will react readily with nucleophilic agents and sulfur-containing reducing agents.
The Flexsys patents identified in the lawsuit cover its invention of a process, discovered after a series of experiments to probe the mechanism of nucleophilic aromatic substitution of hydrogen reactions, for producing 4-aminodiphenylamine and its alkylated derivatives.
At these pH values, the nucleophilic attack of an R-N[H.sub.2] on one of the two outer backbone carbon atoms of dimethyl pimelimidate produces a tetrahedral intermediate that splits into the amidine link and methanol.
The polymers were synthesized by a nucleophilic activated aromatic substitution reaction of an aromatic diol compound and 4,4'-dichloro diphenylsulfone (2,3).
Further investigation of the enzymatic mechanism of the mu-class glutathione S-transferase led to the structure determation of enzyme complexes with a transitionstate analogue, 1-(S-glutathionyl)-2,4,6-trinitrocyclohexadienate, and a product, 1-(S-glutathionyl)-2,4-dinitrobenzene, of a nucleophilic aromatic substitution (SNAr) reaction at 1.9 [Angstrom] and 2.0 [Angstrom] resolution, respectively (70).
The carbocations were scavenged by the nucleophilic solvent to yield the N-benzylacetonitrilium ion.
Acylation, alkylation, alkyl lithium reactions, amidation, bromination, chlorination, cyclization, decarboxylation, electrochemistry, electrophilic substitution, esterification, fluoride exchange, hydrogenation, nucleophilic substitutions, organometallic reactions, oxidations, palladium catalyzed carbonylation, phase transfer catalysis, photochemistry, reductions, sulfonation, vapor phase catalysis.
Based on the product, the global polyetherketone market is segmented as: Electrophilic substitution Nucleophilic substitution Based on the application, the global polyetherketone market is segmented as: Machine parts Nuclear power-plant equipment Automobile parts Aerospace components Cable insulation Pump parts Others Nucleophilic substitution polyetherketone is anticipated to showcase remarkable growth rate during the forecast period due to its wide scale application.