Results 71 to 80 of about 82,167 (149)
Chemistry – A European Journal, Volume 32, Issue 26, 11 July 2026.Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis +2 more
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2014 Diethyl 2-fluoromalonate ester is utilised as a building block for the synthesis of 2-fluoro-2-arylacetic acid and fluorooxindole derivatives by a strategy involving nucleophilic aromatic substitution reactions with ortho-fluoronitrobenzene substrates ...
Antal Harsanyi +3 more
doaj +1 more source
ChemElectroChem, Volume 13, Issue 12, 17 June 2026.Redox‐active guanidines, comprising guanidino‐functionalized aromatics (GFAs) and redox‐active urea azines (RAAs), are electron donors and strong Lewis and Brønsted bases that are used in several applications. They act as redox‐active ligands in bistable coordination compounds and as reagents in dehydrogenative coupling reactions and proton‐coupled ...
Hans‐Jörg Himmel
wiley +1 more source
Estudos de reações de transesterificação com lipases imobilizadas e determinação de coeficiente de difusão de ésteres em organo-gel / [PDF]
, 1999 Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.As lipases de Chromobacterium viscosum, Pseudomonas sp, Microbial e Lipolase, imobilizadas em organo-gel (MBG) de hexano foram usadas como ...
João, Jair Juarez
core
Regioselective carbon–carbon bond formation of 5,5,5-trifluoro-1-phenylpent-3-en-1-yne
Beilstein Journal of Organic Chemistry, 2013 The regioselective carbon–carbon bond formation was studied using 5,5,5-trifluoro-1-phenylpent-3-en-1-yne as a model substrate, and predominant acceptance of electrophiles β to a CF3 group as well as a deuterium trap experiment of the lithiated species ...
Motoki Naka +2 more
doaj +1 more source
Three step synthesis of single diastereoisomers of the vicinal trifluoro motif
Beilstein Journal of Organic Chemistry, 2009 A three step route to single diastereoisomers of the vicinal trifluoromethyl motif is described. The route starts from either syn- or anti-α,β-epoxy alcohols and takes a direct approach in that each of the three steps introduces a fluorine atom in a ...
Vincent A. Brunet +2 more
doaj +1 more source
Electrochemical Properties of Nonflammable Organo-Fluorine Compounds for Lithium Ion Batteries [PDF]
, 2010 Electrochemical behavior of organo-fluorine compounds with high oxidation stability has been investigated. Oxidation currents of fluorine compound-containing EC/DEC solutions were much smaller than those of EC/DEC and EC/DEC/PC at the higher potentials ...
core +1 more source
Diastereoselectivity in the Staudinger reaction of pentafluorosulfanylaldimines and ketimines
Beilstein Journal of Organic Chemistry, 2013 β-Lactams were diastereoselectively formed by the reaction of SF5-containing aldimines, or an SF5-containing ketimine, with benzyloxyketene in a conrotatory ring closure process. Imine formation and cyclization were possible in spite of the acidification
Alexander Penger +3 more
doaj +1 more source
New methodology for the synthesis of fluorinated aromatics [PDF]
, 1990 This thesis is concerned with new methodology for the introduction of fluorine atoms, and trifluoromethyl groups into aromatic systems and the following approaches have been adopted: (i) The possibility of selective cleavage of the aryl-silicon bond of ...
Rock, Michael Harold
core
Chemical diffusion of fluorine in jadeite melt at high pressure [PDF]
, 1984 The chemical diffusion of fluorine in jadeite melt has been investigated from 10 to 15 kbars and 1200 to 1400°C using diffusion couples of Jadeite melt and fluorine-bearing jadeite melt (6.3 wt.% F). The diffusion profile data indicate that the diffusion
Scarfe, Christopher M. +1 more
core +1 more source