Results 11 to 20 of about 18,659 (282)

A Chitosan Hydrochloride Mediated, Simple and Efficient Approach for the Synthesis of Hydrazones, their in vitro Antimycobacterial Evaluations, and Molecular Modeling Studies (Part III)

SynOpen, 2023
A simple, eco-friendly and straightforward synthesis of hydrazones has been devised that is conducted in the presence of chitosan Hydrochloride (chitosan·HCl) as catalyst in aqueous-ethanol medium at room temperature.
Suraj N. Mali, Anima Pandey, Bapu Thorat
doaj   +1 more source

Synthesis of indoles via alkylidenation of acyl hydrazides [PDF]

, 2009
Indoles have been synthesised via alkylidenation of acyl phenylhydrazides using phosphoranes and the Petasis reagent, followed by in situ thermal rearrangement of the product enehydrazines.
Commeureuc, A.G.J., EPSRC (Funder), Hisler, K., Murphy, J.A., WestCHEM (Funder), Zhou, S.Z.   +5 more
core   +1 more source

Palladium-catalyzed sulfonylative coupling of benzyl(allyl) carbonates with arylsulfonyl hydrazides

Green Synthesis and Catalysis, 2022
An efficient palladium-catalyzed sulfonylative coupling for the synthesis of benzyl(allyl) sulfones from sulfonyl hydrazides and carbonates was developed.
Bozhen Gong, Haibo Zhu, Yishuai Liu, Qian Li, Liu Yang, Guorong Wu, Qiangwen Fan, Zongbo Xie, Zhanggao Le   +8 more
doaj   +1 more source

Readily accessible sp3-rich cyclic hydrazine frameworks exploiting nitrogen fluxionality [PDF]

, 2020
Increased molecular complexity correlates with improved chances of success in the drug development process. Here, a strategy for the creation of sp3-rich, non-planar heterocyclic scaffolds suitable for drug discovery is described that obviates the need ...
Carson, Nessa, Clarkson, Guy J., Dean, Conor, Jones, Matthew L., Rajkumar, Sundaram, Roesner, Stefan, Shipman, Michael, Wills, Martin   +7 more
core   +1 more source

On the Nature of the Rotational Energy Barrier of Atropisomeric Hydrazides

Molecules, 2023
N-N atropisomers represent a useful class of compounds that has recently received important attention from many research groups. This article presents an in-depth analysis of the energy barrier needed for the racemization process of atropoisomeric ...
Andrea Pellegrini, Laura Marcon, Paolo Righi, Giovanni Centonze, Chiara Portolani, Marco Capodiferro, Shilashi Badasa Oljira, Simone Manetto, Alessia Ciogli, Giorgio Bencivenni   +9 more
doaj   +1 more source

An overview of the synthesis of acyl hydrazides from aldehydes and reactions of the products thereof [PDF]

, 2017
Herein a review on the methods for the formation and reaction of acyl hydrazides will be given. There is particular focus on the synthesis of acyl hydrazides from aldehyde precursors with examination of the various approaches (e.g.
Chudasama, V, Shamsabadi, A
core   +1 more source

2-([1,2,4]triazolo[1,5-c]quinazoline-2-yl-)alkyl-(alkaryl-,aryl-)-amines and their derivatives. Message 2. The synthesis of (3Н-quinazoline-4-ylidene)hydrazides N-protected aminoacids, using a variety of amine-protecting approaches. Physical-chemical prop

Zaporožskij Medicinskij Žurnal, 2018
The synthetic potential of (3H-quinazoline-4-ylidene)hydrazides of carboxylic acids is significant in the context of new s-triazoloquinazolines creation and the obtained data of biological activity is a valid reason for the development of new methods of ...
Yu. V. Martynenko, M. S. Kazunin, I. S. Nosulenko, G. G. Berest, S. І. Kоvalenko, O. M. Kamyshnyi, N. M. Polishchuk   +6 more
doaj   +1 more source

Synthesis and Antibacterial Activity of New Azole, Diazole and Triazole Derivatives Based on p-Aminobenzoic Acid

Molecules, 2021
The p-aminobenzoic acid was applied for the synthesis of substituted 1-phenyl-5-oxopyrrolidine derivatives containing benzimidazole, azole, oxadiazole, triazole, dihydrazone, and dithiosemicarbazide moieties in the structure.
Birutė Sapijanskaitė-Banevič, Vykintas Palskys, Rita Vaickelionienė, Jūratė Šiugždaitė, Povilas Kavaliauskas, Birutė Grybaitė, Vytautas Mickevičius   +6 more
doaj   +1 more source

A facile, one-pot procedure for the conversion of aromatic aldehydes to esters, as well as thioesters and amides, via acyl hydrazide intermediates [PDF]

, 2015
In the present work, an effective and facile one-pot dealloying strategy has been developed to synthesize monolithic asymmetry-patterned nanoporous copper ribbons (AP-NPCRs) from melt-spun bi-phase Al 32 at% Cu alloy with trace α-Al.
Akhbar, AR, Baggs, H, Chudasama, V, Lee, MTW, Maruani, A, Richards, DA, Shamsabadi, A, Watkins, G   +7 more
core   +1 more source

Síntese e caracterização de um novo complexo de platina (IV) a partir de seu análogo de platina (II) utilizando iodo molecular como agente oxidante: uma rota sintética interessante para obtenção de novos complexos de platina Synthesis and characterization of a novel platinum (IV) complex from its platinum (II) analogue using molecular iodine as an oxidizing agent: an interesting synthetic route for the preparation of new platinum complexes

Química Nova, 2007
In an attempt to reduce toxicity and widen the spectrum of activity of cisplatin and its analogues, much attention has been focused on designing new platinum complexes.
Wendell Guerra, Heveline Silva, Mauro Vieira de Almeida, Ana Paula Soares Fontes   +3 more
doaj   +1 more source