Results 181 to 190 of about 8,655 (241)

Strong deshielding in aromatic isoxazolines

Magnetic Resonance in Chemistry, 2015
AbstractVery strong proton deshielding was found in di/tri‐aromatic isoxazoline regioisomers prepared from acridin‐4‐yl dipolarophiles and stable benzonitrile oxides (BNO). Three alkenes, (acridin‐4‐yl)‐CHCH‐R (R = COOCH3, Ph, and CONH2), reacted with three BNO dipoles (2,4,6‐trimethoxy, 2,4,6‐trimethyl, 2,6‐dichloro) to give pairs of target ...
Lucia, Ungvarská Maľučká, Mária, Vilková, Jozef, Kožíšek, Ján, Imrich   +3 more
openaire   +2 more sources

The discovery of isocycloseram: A novel isoxazoline insecticide

, 2021
Isocycloseram is a novel insecticide discovered at Syngenta Crop Protection. It is a new member of the isoxazoline class of insecticides, which acts as a noncompetitive antagonist of the invertebrate γ-aminobutyric acid (GABA) receptor at a site distinct
J. Cassayre, T. Smejkal, Judith Blythe, P. Hoegger, P. Renold, T. Pitterna, C. Prasanna, Helmars Smits, E. Godineau, Torsten Luksch, Guillaume Berthon, Girish K. Rawal, Rupesh E. Patre, M. Lal, Mohamed Boussemghoune, Simonetta Masala, Fabien Barreteau, Michael Flaeschel, J. Vogt, Myriem El Qacemi   +19 more
semanticscholar   +1 more source

Discovery, development, chemical diversity and design of isoxazoline-based insecticides.

Bioorganic & Medicinal Chemistry, 2020
Isoxazoline is a 5-membered heterocycle present in the active compounds of many commercial veterinary anti-ectoparasitic products. The molecular target of isoxazolines is the inhibition of GABA-gated chloride channels in insects.
I. Gonçalves, Gustavo Machado das Neves, Luciano Porto Kagami, V. Eifler-Lima, A. Merlo   +4 more
semanticscholar   +1 more source

Insecticidal quinoline and isoquinoline isoxazolines

Bioorganic & Medicinal Chemistry Letters, 2014
A series of quinoline and isoquinoline isoxazolines have been designed as pesticides for crop protection. Herein we reported the chemical synthesis, biological activity and structure-activity relationships. The isoquinoline derivative, such as 3i, is discovered as potent new class of isoxazoline insecticide which is competitive with commercial ...
Ming, Xu, Ty, Wagerle, Jeffrey K, Long, George P, Lahm, James D, Barry, Rejane M, Smith   +5 more
openaire   +2 more sources

Solid-Phase Synthesis of Isoxazolines

Journal of Combinatorial Chemistry, 2002
The polymer-supported synthesis of isoxazolines is described via nitrile oxide intermediates, starting from primary nitroalkanes in a one-pot process.
S, Chandrasekhar, Abbas, Raza, M Venkat, Reddy, J S, Yadav   +3 more
openaire   +2 more sources

Design, synthesis and herbicidal evaluation of novel uracil derivatives containing an isoxazoline moiety.

Pest Management Science, 2020
BACKGROUND Glyphosate is the most widely used and successful herbicide discovered to date, but its utility is now threatened by the occurrence of several glyphosate-resistant weed species.
Ji-Chun Yang, Ai-Ying Guan, Qiao Wu, Dong-Liang Cui, Chang-Ling Liu   +4 more
semanticscholar   +1 more source

Isoxazoline- and isoxazole-liquid crystalline schiff bases: A puzzling game dictated by entropy and enthalpy effects

, 2020
Two series of Schiff base (SB) liquid crystals (LC) containing the 5-membered rings isoxazoline or isoxazole were synthesized and characterized; 27 isoxazoline and 20 isoxazole compounds were obtained.
Luma Fritsch, L. A. Baptista, I. H. Bechtold, Guilherme D. E. Araujo, R. Mandle, A. Merlo   +5 more
semanticscholar   +1 more source

Non-food bioactive products: Design and semisynthesis of novel (+)-nootkatone derivatives containing isoxazoline moiety as insecticide candidates

Industrial crops and products (Print), 2019
(+)-Nootkatone, isolated from the heartwood of Alaska yellow cedar, Citrus Rutaceae and Alpinia Zingiberaceae, is a natural bicyclic sesquiterpene.
Yong Guo, Qian Zhang, Zhiyan Liu, Chongnan Bao, Jiangping Fan, Ruige Yang   +5 more
semanticscholar   +1 more source

Photochemistry of condensed isoxazolines

Monatshefte für Chemie Chemical Monthly, 1994
The condensed bridged isoxazolines4 are rearranged on irradiation with a low-pressure mercury lamp exclusively into condensed derivatives of tetrahydropyridine5. The selectivity of the rearrangement is due to a stabilization of the biradical8 by the overlap of the radical-electrons with π-electrons of the C=C double bond and the heterocyclic ring ...
V. Ondruš, L'. Fišera, N. Prónayová
openaire   +1 more source

Preparation of Viscosity-Sensitive Isoxazoline/Isoxazolyl-Based Molecular Rotors and Directly Linked BODIPY-Fulleroisoxazoline from the Stable meso-(Nitrile Oxide)-Substituted BODIPY.

Organic Letters, 2019
We developed a simple methodology for the preparation of stable meso-(nitrile oxide)-substituted BODIPYs, which were characterized by spectroscopic methods and X-ray crystallography.
Yuriy V. Zatsikha, N. Didukh, Rachel K Swedin, V. Yakubovskyi, Tanner S. Blesener, Andrew T. Healy, David E. Herbert, D. Blank, V. Nemykin, Yu. P. Kovtun   +9 more
semanticscholar   +1 more source