Results 231 to 240 of about 42,651 (287)
Some of the next articles are maybe not open access.
ESR Studies of Electron Transfer: trans-Stilbene—Stilbene− System
The Journal of Chemical Physics, 1967The rate of electron transfer between the stilbene anion radical and trans-stilbene has been measured in dimethoxyethane and tetrahydrofuran. The second-order rate constants are approximately 109 liters mole−1·sec−1, and the activation energies fall between 2 and 3 kcal mole−1.
R, Chang, C S, Johnson
openaire +2 more sources
Phosphorescence of trans-stilbene, stilbene derivatives, and stilbene-like molecules at 77 K
The Journal of Physical Chemistry, 1989Determination des durees de vie et des energies de l'etat triplet du stilbene, de ses derives substitues, des diaryl-1,2 ethylenes, des styrylpyridines, des dipyridylethylenes dans des solvants polaires et ...
openaire +1 more source
Antidiabetic Stilbenes from Peony Seeds with PTP1B, α-Glucosidase, and DPPIV Inhibitory Activities.
Journal of Agricultural and Food Chemistry, 2019One unusual resveratrol tetramer, paeonilactiflorol (1), and 14 known compounds (2-15) were isolated from peony seeds ( Paeonia lactiflora) under the guidance of bioassay.
Chen-Chen Zhang +4 more
semanticscholar +1 more source
Untersuchungen über Stilbene. IV. 4‐Amino‐stilben‐aldehyd‐(4′)und 4‐Amino‐stilben‐carbonsäure‐(4′)
Journal für Praktische Chemie, 1956AbstractBeide Verbindungen wurden durch Kuppelung der Diazoniumverbindungen des p‐Aminobenzaldehyds bzw. der p‐Aminobenzoesäure mit p‐Acetamino‐zimtsäure als Reaktionspartner dargestellt.
Günther Drefahl +2 more
openaire +1 more source
Phytochemical Analysis, 2019
INTRODUCTION Grapevine wood and roots are by-products obtained during vineyard management. This plentiful biomass is known to be rich in stilbenes and can be used as a source of high-value compounds as well as active natural extracts.
J. Gabaston +7 more
semanticscholar +1 more source
INTRODUCTION Grapevine wood and roots are by-products obtained during vineyard management. This plentiful biomass is known to be rich in stilbenes and can be used as a source of high-value compounds as well as active natural extracts.
J. Gabaston +7 more
semanticscholar +1 more source
Untersuchungen über Stilbene. XXI. Monoquartäre Ammoniumverbindungen der Stilben‐Reihe
Journal für Praktische Chemie, 1959AbstractDarstellung und Eigenschaften quartärer Ammoniumsalze des [4‐Styryl‐benzyl]‐amins werden beschrieben.
Günther Drefahl, Hans Lückert
openaire +1 more source
Chemical Physics Letters, 1994
Abstract Spectra and shifts, fluorescence quantum yields and lifetimes of 4,4′-dimethylaminostilbene (DDS) and the bridged derivatives DDS-B15 and DDS-B24 were measured as a function of solvent polarity and temperature. The behavior of DDS and DDS-B15 is interpreted in terms of the intramolecular rotational relaxation around the single bond ...
Jean-François Létard +2 more
openaire +1 more source
Abstract Spectra and shifts, fluorescence quantum yields and lifetimes of 4,4′-dimethylaminostilbene (DDS) and the bridged derivatives DDS-B15 and DDS-B24 were measured as a function of solvent polarity and temperature. The behavior of DDS and DDS-B15 is interpreted in terms of the intramolecular rotational relaxation around the single bond ...
Jean-François Létard +2 more
openaire +1 more source
Untersuchungen über Stilbene, XXXI. Additionsreaktionen an α‐Nitro‐stilbene
Chemische Berichte, 1960AbstractDie Bromwasserstoff‐, Hydroxylamin‐ und Ammoniak‐Addition an α‐Nitrostilbene wird beschrieben und durch sterische Zuordnung der Reaktionsprodukte der Additionsverlauf aufgeklärt.
Günther Drefahl, Heinz Ehrhardt
openaire +1 more source
Untersuchungen über Stilbene, X. Mitteil. Die Mercurierung des Stilbens
Chemische Berichte, 1957AbstractStilben wird bei 130 bis 140° durch Quecksilber(II)‐acetat in Eisessig zu einem Gemisch der o‐, m‐ und p‐isomeren Acetoxymercuriverbindungen substituiert, die über die Chlormercuriverbindungen voneinander und den begleitenden Polymercurierungsprodukten getrennt werden Können.
Günther Drefahl, Gerhard Langbein
openaire +1 more source
Cytotoxic Stilbenes and Derivatives as Promising Antimitotic Leads for Cancer Therapy.
Current pharmaceutical design, 2019The growing incidence of cancer, the toxic side-effects associated with conventional chemotherapeutic agents and the development of multidrug resistance (MDR) drive the search for novel and more effective drugs with multi-target activity and selectivity ...
C. Faustino +3 more
semanticscholar +1 more source