Results 61 to 70 of about 7,389 (151)
Flipping the Card With Enantiodivergent Organocatalysis
Chemistry – A European Journal, Volume 32, Issue 29, 7 August 2026.This minireview elaborates on recent organocatalytic strategies for achieving enantiodivergence—the ability to access both product enantiomers using a single chiral catalyst. It highlights how achiral stimuli, such as solvent polarity and chemical additives, along with minimal catalyst modifications, trigger stereochemical inversions in reactions ...
Debora Iapadre +3 more
wiley +1 more source
N-halossacarinas: reagentes úteis (e alternativos) em síntese orgânica
Química Nova, 2006 N-halosaccharins proved to be useful and alternative reagents for diverse organic transformations, such as halogenation of aromatic compounds, benzylic and alpha-carbonylic positions, cohalogenation of alkenes, oxidation of secondary alcohols, etc. Their
Soraia P. L. de Souza +2 more
doaj +1 more source
ChemCatChem, Volume 18, Issue 15, 14 August 2026.The synthesis of an industrial indanyl fragrance is achieved here from inexpensive raw materials and with catalytic sub–nanometric (3–4 atoms) Pd clusters and zeolites, circumventing the currently performed, waste–generating Friedel–Crafts route with stoichiometric amounts of the harmful reagents TiCl4 and BF3·OEt2.
Belén Lerma‐Berlanga +3 more
wiley +1 more source
Selective G-Quadruplex DNA Recognition by a New Class of Designed Cyanines
Molecules, 2013 A variety of cyanines provide versatile and sensitive agents acting as DNA stains and sensors and have been structurally modified to bind in the DNA minor groove in a sequence dependent manner. Similarly, we are developing a new set of cyanines that have
Markus W. Germann +8 more
doaj +1 more source
Redox Modulation in Truxene‐Based Phosphaalkenes Through Peripheral Substitution
ChemistryEurope, Volume 4, Issue 8, August 2026.Peripheral halogenation, followed by the sequential incorporation of one, two, and three phosphaalkene acceptor units, induces progressive distortion of the truxene framework, modulates the frontier molecular orbital energies, and systematically shifts the reduction potentials to milder values.
Toma Bhowmick +3 more
wiley +1 more source
Palladium-catalyzed cross coupling reactions of 4-bromo-6H-1,2-oxazines
Beilstein Journal of Organic Chemistry, 2009 A number of 4-aryl- and 4-alkynyl-substituted 6H-1,2-oxazines 8 and 9 have been prepared in good yields via cross coupling reactions of halogenated precursors 2, which in turn are easily accessible by bromination of 6H-1,2-oxazines 1. Lewis-acid promoted
Reinhold Zimmer +5 more
doaj +1 more source
Molecules, 2012 The Brønsted-acidic ionic liquid 1-methyl-3-(4-sulfobutyl)imidazolium triflate [BMIM(SO3H)][OTf] was demonstrated to act efficiently as solvent and catalyst for the halogenation of activated organic compounds with N-halosuccinimides (NXS) under ...
Stojan Stavber +3 more
doaj +1 more source
Drug Development Research, Volume 87, Issue 5, August 2026.ABSTRACT Drug‐resistant bacteria such as Methicillin‐resistant Staphylococcus aureus (MRSA) and Quinolone‐resistant S. aureus (QRSA), are a growing problem, creating a need for the development of novel antimicrobial agents. In this study, we designed and synthesized two novel 1,4‐naphthoquinone derivatives, LHN‐1034 and LHN‐1035, and evaluated their ...
HyunChan Song +5 more
wiley +1 more source
Beilstein Journal of Organic ChemistryA series of 2,3-dihalo-1,1,1,4,4,4-hexafluorobutanes and 2-halo-1,1,1,4,4,4-hexafluorobut-2-enes were prepared from commercially available hydrofluoroolefins 1,1,1,4,4,4-hexafluorobut-2-enes and their 1H, 19F and 13C chemical shifts measured.
Nataliia V. Kirij +4 more
doaj +1 more source
GelsThe de-halogenation of highly concentrated halo-organic compounds using Zero Valent Iron entrapped in silica matrices as a catalyst was investigated. This study aimed to evaluate the effectiveness of the Zero Valent Iron-entrapped organically modified ...
Gifty Sara Rolly +4 more
doaj +1 more source