Results 61 to 70 of about 48,393 (330)

Overturning established chemoselectivities : selective reduction of arenes over malonates and cyanoacetates by photoactivated organic electron donors [PDF]

, 2013
The prevalence of metal-based reducing reagents, including metals, metal complexes, and metal salts, has produced an empirical order of reactivity that governs our approach to chemical synthesis.
Asensio X., Atherton N. M., Baizer M. M., Benkeser R. A., Bhaskar Mondal, Birch A. J., Bodnar B. S., Bouveault L., Cahard E., Carbery D. R., Cram D. J., Cutulic S. P. Y., Cutulic S. P. Y., Doni E., Eswararao Doni, Finley K. T., Fischer H., Garnier J., Garnier J., Garnier J., Hunter C. A., John A. Murphy, Jolly P. I., Kang H.-Y., Kohn W., Krishnan R., Krollpfeiffer F., Lam K., Lam K., Maslak P., Maslak P., McLean A. D., Mortensen J., Murphy J. A., Murphy J. A., Murphy J. A., Murphy J. A., Murphy J. A., Newcomb M., Parmar D., Parr R. G., Portella C., Rühlmann K., S. Grimme S., Sautier B., Steven O’Sullivan, Studer A., Sword R., Szostak M., Tanko J. M., Tell Tuttle, Tomasi J., Xu Q.   +52 more
core   +1 more source

Mesomorphic properties of cyanobiphenyl dimers with a central malonate unit

, 2018
A series of cyanobiphenyl dimers attached via alkoxy spacers to a central malonate were prepared, and the mesomorphic behaviour was studied by differential scanning calorimetry (DSC), polarised optical microscopy and X-ray diffraction (Wide-angle X-ray ...
M. Grunwald, J. C. Haenle, K. Kreß, Robert Forschner, Tobias Wöhrle, W. Frey, F. Giesselmann, S. Laschat   +7 more
semanticscholar   +1 more source

Mice Deficient in Cellular Glutathione Peroxidase Show Increased Vulnerability to Malonate, 3-Nitropropionic Acid, and 1-Methyl-4-Phenyl-1,2,5,6-Tetrahydropyridine

Journal of Neuroscience, 2000
Glutathione peroxidase (GSHPx) is a critical intracellular enzyme involved in detoxification of hydrogen peroxide (H2O2) to water. In the present study we examined the susceptibility of mice with a disruption of the glutathione peroxidase gene to the ...
P. Klivényi, Ole A. Andreassen, R. Ferrante, A. Dedeoglu, Gerald Mueller, E. Lancelot, M. Bogdanov, Julie K. Andersen, D. Jiang, M. Beal   +9 more
semanticscholar   +1 more source

Crystal structure and identification of resonance forms of diethyl 2-(3-oxoiso-1,3-dihydrobenzofuran-1-ylidene)malonate

Acta Crystallographica Section E: Crystallographic Communications, 2017
The reaction of diethyl malonate with phthaloyl chloride in acetonitrile in the presence of triethylamine and magnesium chloride results in the formation of the title compound, diethyl 2-(3-oxo-1,3-dihydro-2-benzofuran-1-ylidene)propanedioate, C15H14O6 ...
Mikhail S. Tyumentsev, Mark R. StJ. Foreman, Britt-Marie Steenari, Alexandra M. Z. Slawin   +3 more
doaj   +1 more source

On the role of the oxidation in the methylation of guanidoacetic acid [PDF]

, 1947
There are two, at least, methyl transfer reactions promoted by liver slices in vitro (2).
Borsook, Henry, Dubnoff, Jacob W.
core  

Weak Acids Enhance Halogen Activation on Atmospheric Water’s Surfaces [PDF]

, 2011
We report that rates of I_2(g) emissions, measured via cavity ring-down spectroscopy, during the heterogeneous ozonation of interfacial iodide: I^–(surface, s) + O_3(g) + H+(s) →→ I_2(g), are enhanced several-fold, whereas those of IO·(g) are unaffected,
Colussi, Agustín J., Enami, Shinichi, Hayase, Sayaka, Hoffmann, Michael R., Kawasaki, Masahiro, Yabushita, Akihiro   +5 more
core   +2 more sources

Citrate and malonate increase microbial activity and alter microbial community composition in uncontaminated and diesel-contaminated soil microcosms

, 2016
. Petroleum hydrocarbons (PHCs) are among the most prevalent sources of environmental contamination. It has been hypothesized that plant root exudation of low molecular weight organic acid anions (carboxylates) may aid degradation of PHCs by stimulating ...
B. C. Martin, S. George, C. Price, E. Shahsavari, A. Ball, M. Tibbett, M. Ryan   +6 more
semanticscholar   +1 more source

Untargeted Metabolomics Reveals Seasonal and Tissue‐Specific Metabolic Shifts in Holothuria cinerascens

Chemistry &Biodiversity, EarlyView.
Untargeted metabolic profiling of three body tissues from Holothuria cinerascens in South Africa using 1H‐NMR and UPLC–QTOF–MS revealed distinct tissue‐specific and seasonal metabolic variations, with the body wall and gut/mesentery exhibiting high metabolite diversity.
Cassandra Upton, Gerhard Prinsloo, Paul Steenkamp, Moses Okpeku   +3 more
wiley   +1 more source

A new purple sulfur bacterium from saline littoral sediments, Thiorhodotvibrio winogradskyi gen. nov. and sp. nov. [PDF]

, 1992
Two strains of a new purple sulfur bacterium were isolated in pure culture from the littoral sediment of a saline lake (Mahoney Lake, Canada) and a marine microbial mat from the North Sea island of Mellum, respectively.
BB Jørgensen, BB Jørgensen, C Kämpf, CLM Steenbergen, E Reynolds, E Siefert, EF Hartree, GA Horridge, GW Luther, H Gemerden van, J Overmann, JAM Nicholson, K Schmidt, M Meshbah, M Takahashi, N Pfennig, N Pfennig, N Pfennig, N Pfennig, PT Visscher, R Wit De, R Wit de, RM Cole, TB Parkin, TW Goodwin, W Bavendamm   +25 more
core   +1 more source

CuH‐Catalyzed Asymmetric Desymmetrization of Cyclobutenes via Stereodivergent Hydroamination

ChemistryEurope, EarlyView.
The CuH‐catalyzed stereodivergent hydroamination through asymmetric desymmetrization of cyclobutenes has been achieved, yielding a range of trisubstituted aminocyclobutanes with excellent results. A series of subsequent transformations, including the first asymmetric synthesis of two pharmaceutically active molecules, have been realized, and density ...
Xiang Lei, Peng Luo, Shouang Lan, Wennan Dong, Chao Xu, Jinggong Liu, Shuang Yang, Qi Zhang, Xinqiang Fang   +8 more
wiley   +1 more source