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Hierarchical Assembly of a Phthalhydrazide-Functionalized Helicene†
Angewandte Chemie - International Edition, 2011 Ken Tanaka +2 more
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Crystallization of poly(lactic acid) enhanced by phthalhydrazide as nucleating agent
Polymer Bulletin, 2013The effect of phthalhydrazide compound on the nonisothermal and isothermal crystallization behavior of bio-based and biodegradable poly(lactic acid) (PLA) was investigated by differential scanning calorimetry and polarized optical microscopy. The nonisothermal melt crystallization of PLA started much earlier in the presence of phthalhydrazide even at a
Changyu Shen, Yaming Wang, Xiao Wang
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Journal of Molecular Structure, 2021
Abstract A series of new phthalhydrazide-coumarin hybrids was obtained in the reaction of phthalhydrazide with corresponding bromopropoxycoumarin derivatives. These reactions were performed in the presence of Cs2CO3, in acetonitrile as solvent, and under reflux for 5 h.
Konstantinos E Litinas +2 more
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Abstract A series of new phthalhydrazide-coumarin hybrids was obtained in the reaction of phthalhydrazide with corresponding bromopropoxycoumarin derivatives. These reactions were performed in the presence of Cs2CO3, in acetonitrile as solvent, and under reflux for 5 h.
Konstantinos E Litinas +2 more
exaly +3 more sources
Development of a novel chemiluminescent probe, 4-(5',6'-Dimethoxybenzothiazolyl) phthalhydrazide
Analytica Chimica Acta, 1995Abstract 4-(5',6'-Dimethoxybenzothiazolyl)phthalhydrazide (DBPH) was synthesized as a new, highly sensitive chemiluminescent reagent. The reagent consists of phthalhydrazide and benzothiazole moieties and generates strong chemiluminescence by reaction with hydrogen peroxide in the presence of potassium hexacyanoferrate(III) or peroxidase.
Junichi Ishida, Kazumi Sasamoto
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Sensitized chemiluminescence in micellar mixtures of phthalhydrazide and selected dyes
Journal of Photochemistry and Photobiology A: Chemistry, 2004Abstract A simplified quantitative model of chemiluminescence intramicellar sensitization is proposed, based on the analytical solution of Forster’s energy transfer function for donor–acceptor pairs residing on micellar spherical surface. To test the usability of the model, the intramicellar sensitization of phthalhydrazide chemiluminescent oxidation
Jan Hrbáč, Kyriakos Papadopoulos
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Mechanism for the chemiluminescent photooxidation of phthalhydrazides
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1985The rate constants were determined for the oxidation of phthalhydrazides sensitized by methylene blue, and a mechanism was proposed. The key role of the Superoxide ion in the generation of chemiluminescence was confirmed. The reaction of the methylene blue radical by oxygen was shown to be the major channel for the generation of the superoxide ion.
A. D. Klimov +2 more
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The photodynamic effect: the comparison of chemiexcitation by luminol and phthalhydrazide
Luminescence, 2010ABSTRACTThe presence of light, oxygen and photosensitizer (organic dye) is required for the photodynamic effect. Light and photosensitizer are harmless by themselves, but when combined with oxygen, reactive oxygen species (ROS) can be produced. This photodynamic effect is used in photodynamic therapy (PDT); the production of ROS as lethal cytotoxic ...
Martina, Bancirova, Jan, Lasovský
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Theoretical calculation pKa values of phthalhydrazide derivatives in its aqueous solutions
Russian Journal of Physical Chemistry B, 2017The pKa values of some phthalhydrazide derivatives were calculated using ab initio and two density functional methods to obtain information about their reaction conditions. The results showed that pKa1 was influenced by structural modification as it varied between 0.47 and 6.99, and that pKa2 was relatively less variable from 16.66 to 21.53.
Bingchun Xue, Erbao Liu
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Tetrahedron Letters, 2008
Abstract Some new phthalazine derivatives were prepared by reaction of phthalhydrazide and dialkyl acetylenedicarboxylates in the presence of N-heterocycles.
Ramin Ghahremanzadeh, Ayoob Bazgir
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Abstract Some new phthalazine derivatives were prepared by reaction of phthalhydrazide and dialkyl acetylenedicarboxylates in the presence of N-heterocycles.
Ramin Ghahremanzadeh, Ayoob Bazgir
exaly +2 more sources
Über den Mechanismus der Chemilumineszenz von Phthalhydrazid
Berichte der Bunsengesellschaft für physikalische Chemie, 1965AbstractDer Mechanismus der Chemilumineszenz der Reaktion zwischen Phthalhydrazid und H2O2, die durch Cu2+ katalysiert wird, wurde durch reaktionskinetische Analyse des zeitlichen Ablaufs der Leuchtintensität und der Sauerstoffentwicklung sowie durch Aufnahme von Differenz‐Absorptionsspektren weiter aufzuklären versucht.Durch Lösen des ...
Joachim Stauff, Gerhard Hartmann
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