Results 41 to 50 of about 6,879 (216)
ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
Química Nova, 2021 Sinningia reitzii (Hoehne) L. E. Skog (Gesneriaceae) is a subshrub native to Brazil, where it is distributed in two disjunctive populations around the 26°S and 23°S parallels.
Vanessa Winiewski +5 more
doaj +1 more source
Chemistry – A European Journal, EarlyView.Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley +1 more source
, 2016 Unprecedented Directing Effect of Bromine on the Regioselectivity of Addition of Stannylated Oxazolines to Substituted 2-Bromo-1,4-naphthoquinones.
John S. Harwood (1645678) +2 more
core +1 more source
Cells, 2022 Natural naphthoquinones and their derivatives exhibit a broad spectrum of pharmacological activities and have thus attracted much attention in modern drug discovery.
Ming-Jen Hsu +4 more
doaj +1 more source
POLYPHENOLS AND NAPHTHOQUINONES EXTRACTION FROM WALNUTS PELLICULA: THE IMPACT ON KERNELS QUALITY [PDF]
Journal of Engineering Science (Chişinău), 2020 Walnuts change their appearance during storage, becoming brown and bitter. The aim of this paper was to determine the polyphenols and naphthoquinones extraction process parameters from the pellicle of kernels, and to assess the influence of extraction on
Baerle, Alexei +2 more
doaj +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Left: Desulphurization method application. Right: Novel desulphurization method. Abstract The presence of hydrogen sulphide (H2S) in biogas poses significant environmental and operational challenges due to its corrosive and toxic properties. Thus, this study aimed to develop a dual‐function desulphurization system using a cation exchange resin (CIER ...
Matheus Damásio Thrun +6 more
wiley +1 more source
Natural and Synthetic Naphthoquinones as Potential Anti-Infective Agents
, 2021 Background: Naphthoquinones are a class of aromatic compounds relevant for their chemical characteristics, structural properties, and biological activity. These compounds are found in nature with a wide range of effects, highlighting their antibacterial,
Trofymchuk, Oleksandra S. +7 more
core +1 more source
Synthesis and Cytotoxic Evaluation of a Series of 2-Amino-Naphthoquinones against Human Cancer Cells
Molecules, 2014 The cytotoxicity of a series of aminonaphthoquinones resulting from the reaction of suitable aminoacids with 1,4-naphthoquinone was assayed against SF-295 (glioblastoma), MDAMB-435 (breast), HCT-8 (colon), HCT-116 (colon), HL-60 (leukemia), OVCAR-8 ...
Thiago A. P. de Moraes +8 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A sulfur‐containing heterocyclic quinone cathode for rechargeable magnesium batteries is coupled with a GO/MWCNTs–COOH separator that establishes a confinement–adsorption regulation mechanism, thereby significantly accelerating Mg2+ reaction kinetics and minimizing active‐material loss.
Xiquan Qi +3 more
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 27, 1 July 2026.Molecular recognition guest binding can comprehensively modulate photoinduced charge‐transfer dynamics in the cyclophane host, including charge separation and recombination, via coherent superexchange and incoherent hopping. Unlike covalent donor–bridge–acceptor systems, this supramolecular approach avoids tedious syntheses and offers precise tuning of
Xueze Zhao +11 more
wiley +2 more sources