Results 41 to 50 of about 929 (177)
Ultrasonics Promoted Synthesis of 5-(Pyrazol-4-yl)-4,5-Dihydropyrazoles Derivatives
Applied Sciences, 2013 A series of new 1,3-diaryl-5-(1-phenyl-3-methyl-5-chloropyrazol-4-yl)-4,5-dihydropyrazole derivatives have been synthesized under sonication conditions in ethanol or methanol/glacial acetic acid mixture (5/1 ratio) with two equivalents of hydrazines and ...
Manuel Nogueras +4 more
doaj +1 more source
Molecules, 2018 The one-pot synthesis of a series of pyrazoline derivatives containing the bioactive thiazole ring has been performed through a 1,3-dipolar cycloaddition reaction of N-thiocarbamoylpyrazoline and different hydrazonoyl halides or α-haloketones in the
Mastoura M. Edrees +5 more
doaj +1 more source
Synthesis of Some substituted (Pyrazolines) Derived From Benzotriazole [PDF]
Kirkuk Journal of Science, 2016 In this paper , a number of heterocyclic compounds with five-memberd pyrazolines were prepared , the ester compound (1) was synthesized from the reaction of benzotriazole with ethyl chloroacetate , the hydrazide (2) was prepared from the reaction of ...
Fariq Salah Ahmed +2 more
doaj +1 more source
European Journal of Organic Chemistry, Volume 29, Issue 23, 16 June 2026.1,1‐Disubstituted vinylbromides are key intermediates for constructing nitrogen‐containing heterocycles. This review provides an overview of the synthetic applications of 1,1‐disubstituted vinylbromides and summarizes recent developments in reaction methodologies, mechanistic insights, and the structural diversity of N‐heterocyclic compounds accessible
Anne Westermeyer +6 more
wiley +1 more source
Synthesis and Crystal Structures of 4,5-Dihydroimidazo[1,5-b]pyrazol-6-ones
SynOpen, 2020 The synthesis of previously unattainable 2,5-disubstituted 4,5-dihydroimidazo[1,5-b]pyrazol-6-ones has been developed. Electrochemical reductions of readily available 2,2,2-trichloroethylideneacetophenones were followed by reaction with hydrazine ...
Antonio Guirado +6 more
doaj +1 more source
Aggregate, Volume 7, Issue 6, June 2026.This review surveys recent advances in light‐controlled peptide self‐assembly for the design of smart soft matter. It summarizes the underlying physicochemical principles, including thermodynamic control for reshaping free‐energy landscapes, and nonequilibrium control to produce kinetically trapped states and dissipative structures.
Lidong Chen +7 more
wiley +1 more source
Orbital: The Electronic Journal of Chemistry, 2012 A new method for the construction of novel fluorine-containing indole ring system has been reported. These indoles were converted into a new series of fluorine-containing indolyl chalcones (1a-g) and pyrazolines (2a-g). All the newly synthesized
Mazahar Farooqui +2 more
doaj +1 more source
Synthesis, biological evaluation and molecular docking of methoxy
Pakistan Journal of Pharmaceutical Sciences, 2022 This research aims to synthesize some N-phenylpyrazoline derivatives with methoxy substituents and study their activity as potent anticancer agents as well as their interaction with the EGFR receptor on cancer cells.
Setiawati +5 more
doaj +1 more source
Pyrazoline as a medicinal scaffold [PDF]
Bionatura, 2019 Heterocyclic Chemistry is the backbone of medicinal compounds that exhibits numerous biological activities. Pyrazole and its derivatives possess nitrogen atom along with carbon atom as a substitution and show a diversity of biological activities such as antibacterial, antimicrobial, anti-inflammatory, antioxidant, antidiabetic, anticancer, antifungal ...
Gurinderdeep Singh +3 more
openaire +1 more source
Molbank, 2020 (E)-1-(4-Ethoxycarbonylphenyl)-5-(3,4-dimethoxyphenyl)-3-(3,4-dimethoxystyryl)-2-pyrazoline was synthesized via the cyclization reaction between the monocarbonyl curcuminoid (2E,6E)-2,6-bis(3,4-dimethoxybenzylidene)acetone and ethyl hydrazinobenzoate in ...
Dimitris Matiadis +5 more
doaj +1 more source