Global ETD Search
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Showing 1 to 5 of 5 for “"Dioxetane"”.
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Mechanisms of Chemiluminescence
3-Acetyl-4,4-dimethyl-1,2-dioxetane (1) was prepared by the base-catalyzed rearrangement of 4-bromo-3-hydroxy-3,5,5-trimethyl-1,2-dioxolane. Thermal decomposition of this dissymmetric dioxetane to acetone and methylglyoxal proceeds with an activation energy of 26.0 (+OR-) 1 kcal/mol and a log A of …
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Design and synthesis of mechanoresponsive materials and multivalent polymer-peptide conjugates
… (HIFU) as a remote force trigger for a dioxetane based mechanophore. Remotely generating light is potentially useful in biomedical applications such as optogenetics where light is needed inside biological systems. In this study, dioxetane mechanophores were incorporated in polymer …
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ΣΥΝΘΕΣΗ ΚΑΙ ΧΗΜΕΙΟΦΩΤΑΥΓΕΙΑ ΔΙΥΠΟΚΑΤΕΣΤΗΜΕΝΩΝ ΣΤΙΛΒΕΝΙΩΝ
… 5,0X10-8. THE REACTION DOES NOT GO THROUGH A 1,2 DIOXETANE INTERMEDIATE AND THE MOLECULE EMITTING LIGHT IS FOUND TO BE STILBENOL ITSELF, PROBABLY VIA A C.I.E.E.L MECHANISM. FURTHERMORE WITTIG REACTIONS OF SEMISTABILIZED YLIDES WERE STUDIED FROM A MECHANISTIC POINT OF VIEW. DIFFERENCES IN …
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Oxygen Atom Transfer Reactions Catalyzed by Molybdenum and Tungsten Oxo Transferase Mimics
… intermediate facilitates the formation of 1,2-dioxetane species, which subsequently decompose into benzophenone and benzaldehyde derivatives. By integrating experimental synthesis, mechanistic studies, and computational modeling, this research provides new insights into bio-inspired OAT …
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Oxidative DNA-Schädigung durch elektronisch angeregte Carbonylverbindungen und daraus gebildete Radikalspezies
Mittels Laserblitz-Photolyse wurden die Triplettlebenszeiten sowie die Löschraten der Triplettzustände verschiedener Acetophenonderivate durch dG, 8-oxodG, DNA, molekularen Sauerstoff und die Ketone selbst bestimmt. Für AP-OAc, AP und BP wurden Triplettlebensdauern von 7-9 µs gemessen, während die …