Results 101 to 110 of about 8,057 (210)

Synthesis methods of 1,2,4-triazole-3-thiones: review

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki
1,2,4-Triazole-containing compounds are unique heterocyclic compounds present in an array of pharmaceuticals and biologically important compounds used in drug-discovery studies against cancer cells, microbes, and various types of diseases in the human ...
Yu. S. Frolova   +3 more
doaj   +1 more source

New Route to 3-Alkylthiazolo[3,2-a]benzimidazole Derivatives

open access: yesMolecules, 2005
3-Alkyl-thiazolo[3,2-a]benzimidazole derivatives are obtained in high yieldsvia the corresponding 4-alkyl-N-3-(2-aminophenyl)-thiazoline-2-thiones which are easilyprepared from 1,2-diaminobenzene, CS2 and halogenoketones.
Nicolas Vanthuyne   +4 more
doaj   +1 more source

Synthese, Kristallstruktur und Eigenschaften von Tetraaminophosphonium-iodid P(NH2)4I [PDF]

open access: yes, 1994
The title compound has been prepared starting from phosphorothionic triamide SP(NH2)3 by methylation of the sulfur atom and subsequent ammonolysis reaction in dry acetonitrile and dichloromethane, respectively, both at room temperature.
Horstmann, Stefan, Schnick, Wolfgang
core   +1 more source

Synthesis of new chiral organosulfur donors with hydrogen bonding functionality and their first charge transfer salts [PDF]

open access: yes, 2013
The syntheses of a range of enantiopure organosulfur donors with hydrogen bonding groups are described including TTF related materials with two, four, six and eight hydroxyl groups and multiple stereogenic centres and a pair of chiral N-substituted BEDT ...
Akutsu, H   +11 more
core   +1 more source

Crystal structure of 5-(adamantan-1-yl)-3-= (4-chloroanilino)methyl-2,3-dihydro-1,3,4-oxadiazole-2-thione, C19H22ClN3OS [PDF]

open access: yes, 2016
C19H22ClN3OS, orthorhombic, P212121 (no. 19), a = 7.0418(2) Å, b = 10.8802(3) Å, c = 23.5506(6) Å, V = 1804.36(8) Å3, Z = 4, R gt (F) = 0.0413, wR ref (F 2
Al-Alshaikh, M. A.   +5 more
core   +1 more source

Design, synthesis, in silico and in vitro antimicrobial screenings of novel 1,2,4-triazoles carrying 1,2,3-triazole scaffold with lipophilic side chain tether

open access: yesChemistry Central Journal, 2017
Background 1,2,4-Triazoles and 1,2,3-triazoles have gained significant importance in medicinal chemistry. Results This study describes a green, efficient and quick solvent free click synthesis of new 1,2,3-triazole-4,5-diesters carrying a lipophilic side
Mohamed Reda Aouad   +6 more
doaj   +1 more source

Transalkylidation reaction: green, catalyst-free synthesis of thiosemicarbazones and solving the NMR conflict between their acyclic structure and intramolecular cycloaddition products

open access: yesGreen Chemistry Letters and Reviews, 2019
A series of arylidene thiosemicarbazides have been prepared by a new method, which was titled as transalkylidation. This method is an effective, fast, green and clean method. The mechanism of this reaction has been discussed.
Mohamed A. El-Atawy   +3 more
doaj   +1 more source

Spiro-fused carbohydrate oxazoline ligands: Synthesis and application as enantio-discrimination agents in asymmetric allylic alkylation

open access: yesBeilstein Journal of Organic Chemistry, 2016
In the present work, we describe a convenient synthesis of spiro-fused D-fructo- and D-psico-configurated oxazoline ligands and their application in asymmetric catalysis.
Jochen Kraft   +2 more
doaj   +1 more source

Synthesis, Antimicrobial, and Anti-inflammatory Activities of Novel 5-(1-Adamantyl)-4-arylideneamino-3-mercapto-1,2,4-triazoles and Related Derivatives

open access: yesMolecules, 2010
The reaction of 5-(1-adamantyl)-4-amino-3-mercapto-1,2,4-triazole (5) with various aromatic aldehydes in ethanol or acetic acid yielded the corresponding 4-arylideneamino derivatives 6a–v.
Mohamed A. Al-Omar   +5 more
doaj   +1 more source

Synthesis, physical-chemical properties and further transformation of 5-(quinoline-2-yl, 2-hydroxyquinoline-4-yl)-4-R-2,4-dyhydro-3Н-1,2,4-triazole-3-thiones

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2016
The aim of this work was the synthesis of new highly effective and low-toxic substances in a series of 5-(quinoline-2-yl, 2-hydroxyquinoline-4-yl)-4-R1-2,4-dyhydro-3Н-1,2,4-triazole-3-thiones and its derivatives, and also establishment of physical ...
T. M. Kaplaushenko
doaj   +1 more source

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