Results 21 to 30 of about 2,967 (176)

Liver and spleen of hosts of Rhipicephalus linnaei exposed to synthetic (afoxolaner) and natural acaricides (esters from castor oil). A comparative clinical-morphological study [PDF]

Revista Brasileira de Parasitologia Veterinária, 2023
In dogs, Rhipicephalus linnaei transmits pathogens such as Ehrlichia canis, Babesia vogeli, and Hepatozoon canis. The veterinary market has synthetic acaricides to ticks control. Esters derived from castor oil are efficient.
Luís Fernando Sodelli, Odaiza da Silva, Bruna Jéssyca Nascimento Araújo, Maria Izabel Camargo-Mathias   +3 more
doaj   +1 more source

Ultrasound Assisted One-Pot Synthesis of Novel 3-(Aryl)-5-((4-(phenyldiazenyl)phenoxy)methyl)isoxazolines in Water

Molbank, 2022
In this work, we present an efficient one-pot method for the synthesis of three new azo-isoxazoline derivatives (4a–c) from aromatic aldehydes, hydroxylamine hydrochloride and 4-(allyloxy)azobenzene.
Ayoub El Mahmoudi, Khalid Karrouchi, Hamza Tachallait, Khalid Bougrin   +3 more
doaj   +1 more source

Introduction of an isoxazoline unit to the β-position of porphyrin via regioselective 1,3-dipolar cycloaddition reaction

Beilstein Journal of Organic Chemistry, 2019
Isoxazoline-linked porphyrins have been synthesized by a regioselective 1,3-dipolar cycloaddition reaction between vinylporphyrin 2 and nitrile oxides. The steric interaction directed the reaction trajectory, in which only the product with a link between
Xiujun Liu, Xiang Ma, Yaqing Feng
doaj   +1 more source

Síntese e avaliação preliminar da atividade antinociceptiva de novas isoxazolil-aril-hidrazonas

Química Nova, 2011
New 2-isoxazoline aldehydes were synthesized, in good yields, from cycloadduct of the 1,3-dipolar cycloaddition reaction between endocyclic enecarbamate and carboethoxyformonitrile oxide (CEFNO). Condensation of these 2-isoxazoline aldehydes with several
Sílvio Leandro Gonçalves Bomfim Reis, Valderes Moraes de Almeida, Gleybson Correia de Almeida, Karinna Moura Boaviagem, Charles Christophe Du Barriere Mendes, Antônio Rodolfo de Faria, Alexandre José da Silva Góes, Laudelina Rodrigues Magalhães, Teresinha Gonçalves da Silva   +8 more
doaj   +1 more source

Synthesis of some 3,5-diarylisoxazoline derivatives in ionic liquids media [PDF]

Journal of the Serbian Chemical Society, 2012
Biologically active isoxazoline derivatives were efficiently synthesized in excellent yields and in less reaction time using mild, effective and environmentally friendly butylmethylimidazolium bromide as solvent and catalyst.
Safaei-Ghomi Javad, Ghasemzadeh Ali Mohammad   +1 more
doaj   +1 more source

The Chemoselective Reduction of Isoxazoline γ-Lactams Through Iminium Aza-Diels-Alder Reactions: A Short-Cut Synthesis of Aminols as Valuable Intermediates towards Nucleoside Derivatives

The Scientific World Journal, 2012
Isoxazoline γ-lactams are prepared starting from the regioisomeric cycloadducts of benzonitrile oxide to the N-alkyl 2-azanorbornenes taking advantage of the efficient catalytic oxidation by RuO4.
Misal Giuseppe Memeo, Mariella Mella, Paolo Quadrelli   +2 more
doaj   +1 more source

Kinetic Study on the Base-Catalyzed Imine-Enamine Tautomerism of a Chiral Biologically Active Isoxazoline Derivative by HPLC on Amylose Tris(3,5-dimethylphenylcarbamate) Chiral Stationary Phase

Molecules, 2023
Isoxazoline is a nitrogen- and oxygen-containing five-membered heterocyclic scaffold with diverse biological profiles such as antimicrobial, fungicidal, anticancer, antiviral, analgesic and anti-inflammatory activity.
Daniele Sadutto, Paolo Guglielmi, Simone Carradori, Daniela Secci, Roberto Cirilli   +4 more
doaj   +1 more source

Discovery of a Novel Class of Acylthiourea-Containing Isoxazoline Insecticides against Plutella xylostella

Molecules, 2023
Isoxazoline structures are widely found in natural products and are rich in biological activities. This study discloses the development of a series of novel isoxazoline derivatives by introducing acylthiourea fragments to access insecticidal activity ...
Fangyi Li, Biaobiao Jiang, Yuqin Luo, Siqi He, Di Feng, Deyu Hu, Runjiang Song   +6 more
doaj   +1 more source

Navigating Nitration Chemistry: A Practical Guide to Reagents, Mechanisms, and Selectivity

Angewandte Chemie, Volume 138, Issue 20, 11 May 2026.
This review highlights key contributions of modern nitration chemistry, emphasizing sustainable mechanistic platforms and comparing the performance of both organic and inorganic reagents across aromatic, ipso‐, olefin, alkyne, and heteroatom nitration. It provides the community with a clearer, unified perspective on current advances and facilitates the
Harry Lecomte, Anthony J. Fernandes, Dmitry Katayev   +2 more
wiley   +2 more sources

Synthesis and Pharmacological Significance of Isoxazoline Derivatives: A Mini review

Academic Science Journal
Five-membered heterocycles, like isoxazolines, are an important class of compounds of bioorganic and pharmacological importance. They have been treated as useful intermediates for the transformation of a large number of bioactive molecules.
mohammed alwan
doaj   +1 more source