Results 1 to 10 of about 142,321 (265)
ON PYRIDINE HEMOCHROMOGEN [PDF]
Journal of General Physiology, 1929 1. Cyanide hemochromogen probably contains one cyanide group per heme group. 2. The equilibrium between pyridine hemochromogen and its components, pyridine and reduced heme, is complicated to an unknown extent by the precipitation of reduced heme and the aggregation of pyridine hemochromogen. 3.
A E, Mirsky, M L, Anson
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Acta Crystallographica Section E: Crystallographic Communications, 2021 In the title molecule, C21H20N2O3S, the styryl and ester substituents are displaced to opposite sides of the plane of the pyridine ring. In the crystal, C—H...O hydrogen bonds form chains extending parallel to the a-axis direction, which pack with ...
Safiyyah A. H. Al-Waleedy +5 more
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From Pyridine to (−)‐Agelastatin A
Advanced Synthesis & Catalysis, 2023 Abstract(−)‐Agelastatin A was synthetized employing a flow photorearrangement of a pyridinium salt, constructing in one step the cyclopentene core possessing the desired functionalities and relative configurations. A flow enzymatic kinetic resolution of the resulting bicyclic vinyl aziridine delivered the enantiopure precursor to the natural product ...
Vale, João R. +5 more
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Bulletin of Chemical Reaction Engineering & Catalysis, 2017 A novel Eu(III) complex, [Eu(L)2(H2O)4]·(NO3)·(H2O)4 (1) (H2L = 4-imidazolecarboxaldehyde-pyridine-2-carbohydrazide), was synthesized. Its structure has been characterized by elemental analysis, IR, and X-ray single crystal diffraction analysis.
Li-Hua Wang, Lei Liang, Peng-Fei Li
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Metastable Transitions in Pyridine and Pyridine Derivatives [PDF]
Zeitschrift für Naturforschung A, 1981 The kinetic energy released in metastable transitions in pyridine, 2, 3, 4 acetylpyridine and 2, 3, 4 aminopyridine differs for the different isomers. This indicates that the dissociation path-way of these compounds depends on the position of the nitrogen atom in the isomer.
Th. M. El-Sherbini +2 more
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Anticancer Evaluation of 4-substituted-N-(quinolin-8-yl)pyridine-3-sulfonamides
Medical Sciences Forum, 2022 During our research of biological activity of different N-aryl-4-substututed-pyridine-3-sulfonamides, we have found that compounds bearing a N-(quinolin-8-yl) substituent possess a significant anti-tumor activity.
Krzysztof Szafrański +2 more
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Molecules, 2015 In this work, 3-bromoacetylcoumarin was used as the key starting material for the synthesis of pyran, pyridine, thiophene, thiazole and pyrazole derivatives through its reaction with different reagents.
Rafat M. Mohareb, Nadia Y. MegallyAbdo
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Pharmaceutics, 2023 Due to the urgent need for finding effective and free of secondary effect treatments for every clinical form of Leishmaniasis, a series of synthetic xylene, pyridine and, pyrazole azamacrocycles were tested against three Leishmania species. A total of 14
Álvaro Martín-Montes +7 more
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Parallel interactions of aromatic and heteroaromatic molecules [PDF]
Hemijska Industrija, 2016 Parallel interactions of aromatic and heteroaromatic molecules are very important in chemistry and biology. In this review, recent findings on preferred geometries and interaction energies of these molecules are presented.
Malenov Dušan P., Zarić Snežana D.
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4-[3-(Pyridin-3-yl)prop-2-enoyl]phenyl 4-dodecyloxybenzoate
Molbank, 2015 Steglich esterification between 1-(4-hydroxyphenyl)-3-(pyridin-3-yl)prop-2-en-1-one and 4-dodecyloxybenzoic acid has produced a new compound, 4-[3-(pyridin-3-yl) prop-2-enoyl]phenyl 4-dodecyloxybenzoate. The title compound was characterized by IR and NMR
Sie-Tiong Ha, Yi-Jun Lau
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