Results 71 to 80 of about 8,235 (246)

Ultrasound-assisted one-pot green synthesis of new N- substituted-5-arylidene-thiazolidine-2,4-dione-isoxazoline derivatives using NaCl/Oxone/Na3PO4 in aqueous media.

Ultrasonics sonochemistry, 2020
A rapid and green method for the synthesis of novel N-thiazolidine-2,4-dione isoxazoline derivatives 5 from N-allyl-5-arylidenethiazolidine-2,4-diones 3 as dipolarophiles with arylnitrile oxides via 1,3-dipolar cycloaddition reaction. The corresponding N-
Fatima Zahra Thari, Hamza Tachallait, Nour-Eddine El Alaoui, Aicha Talha, S. Arshad, E. Álvarez, K. Karrouchi, K. Bougrin   +7 more
semanticscholar   +1 more source

Stereoselective Synthesis of 1-Nitrobicyclo[3.1.0]hexanes and Fused Isoxazoline-N-oxides from Primary Nitro Compounds

, 2016
The one-step preparation of 1-nitrobicyclo[3.1.0]­hexane and bicycloisoxazoline-N-oxide was readily achieved from conjugate adducts of nitro alkenes and allylmalonates by treatment with Ag2O and iodine under basic conditions.
Akio Kamimura (1754224), Ryota Takeuchi (2108365), Kosuke Ikeda (2108362), Michinori Sumimoto (1848757), Takaaki Moriyama (2108359)   +4 more
core   +3 more sources

Synthesis and In Silico Analysis of New Polyheterocyclic Molecules Derived from [1,4]-Benzoxazin-3-one and Their Inhibitory Effect against Pancreatic α-Amylase and Intestinal α-Glucosidase

Molecules
This study focuses on synthesizing a new series of isoxazolinyl-1,2,3-triazolyl-[1,4]-benzoxazin-3-one derivatives 5a–5o. The synthesis method involves a double 1,3-dipolar cycloaddition reaction following a “click chemistry” approach, starting from the ...
Mohamed Ellouz, Aziz Ihammi, Abdellah Baraich, Ayoub Farihi, Darifa Addichi, Saliha Loughmari, Nada Kheira Sebbar, Mohamed Bouhrim, Ramzi A. Mothana, Omar M. Noman, Bruno Eto, Fatiha Chigr, Mohammed Chigr   +12 more
doaj   +1 more source

Application of chiral 2-isoxazoline for the synthesis of syn-1,3-diol analogs

Beilstein Journal of Organic Chemistry, 2019
The asymmetric cycloaddition of TIPS nitronate catalyzed by “Cu(II)-bisoxazoline” gave the 2-isoxazoline product in 95% yield, which was converted into tert-butyl (3S,5R)-6-hydroxy-3,5-O-isopropylidene-3,5-dihydroxyhexanoate in 14 steps through a β ...
Juanjuan Feng, Tianyu Li, Jiaxin Zhang, Peng Jiao   +3 more
doaj   +1 more source

Molybdenum-Mediated Cleavage Reactions of Isoxazoline Rings Fused in Bicyclic Frameworks

, 2002
The molybdenum-mediated cleavage reactions of isoxazoline rings fused in bicyclic frameworks were investigated. A tandem N−O bond cleavage-retro aldol reaction of an isoxazoline ring fused in a bicyclic framework led to the cleavage of the bicyclic ...
Tam, William, Geoffrey K. Tranmer, Tranmer, Geoffrey K., William Tam   +3 more
core   +1 more source

Knowledge mapping of risk mitigation measures against vector‐borne diseases

EFSA Journal, Volume 24, Issue 5, May 2026.
Abstract A comprehensive synthesis of current evidence on surveillance, prevention and control measures for 25 selected vector‐borne diseases (VBDs) affecting animals in the EU is presented here. The assessment integrates evidence from systematic literature reviews, modelling studies, field investigations and expert judgement.
European Food Safety Authority (EFSA), Ieva Baltusyte, Fabio Bigoni, Alessandro Broglia, Sofie Dhollander, Stefania Tampach, Jordi Figuerola, Hans Hermann Thulke, Miguel Ángel Chueca Miranda   +8 more
wiley   +1 more source

3,5-Bis(4-methoxyphenyl)-4,5-dihydroisoxazole

Acta Crystallographica Section E, 2011
In the title compound, C17H17NO3, the five-membered isoxazoline ring adopts an envelope conformation with the chiral C atom at the flap position and 0.133 (2) Å out of the mean plane formed by the other four atoms.
S. Samshuddin, Ray J. Butcher, Mehmet Akkurt, B. Narayana, H. S. Yathirajan   +4 more
doaj   +1 more source

Spatial Control Over Tether‐Tunable Coordination on Palladium for Divergent Synthesis of Bicyclo[n.1.0]alkanes via Oxidative Cyclopropanation of Enynes

Advanced Science, Volume 13, Issue 19, 2 April 2026.
We have developed a Pd‐catalyzed oxidative cyclopropanation of 1,n‐enynes employing cyclic diacyl peroxides as bifunctional reagents that serve as both tether‐tunable oxidants and spatially controlled dicarboxylate anions. ABSTRACT Bicyclo[n.1.0]alkanes are highly valuable scaffolds in drug discovery and synthetic chemistry.
Ting Yuan, Lei Shi
wiley   +1 more source

Synthesis and Study Biological Activity of Some New Isoxazoline and Pyrazoline derivatives

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
   This work involves synthesis of novel Schiff bases derivatives contining isoxazoline or pyrazoline units starting with chalcons . 4-Aminoacetophenone was reacted with 3-nitrobenzaldehyde in basic medium giving chalcone [I] by claisen-schemidt ...
Muna S. Al-Rawi, Jumbad H. Tomma, Rana M. Abdullah   +2 more
doaj  

A one-pot synthesis of 3-trifluoromethyl-2-isoxazolines from trifluoromethyl aldoxime

Beilstein Journal of Organic Chemistry, 2013
Functionalized 3-trifluoromethyl-2-isoxazolines and 3-trifluoromethylisoxazoles were easily prepared from trifluoromethyl aldoxime 2 under mild conditions by using DIB as oxidant.
Raoni S. B. Gonçalves, Michael Dos Santos, Guillaume Bernadat, Danièle Bonnet-Delpon, Benoit Crousse   +4 more
doaj   +1 more source