Results 71 to 80 of about 5,322 (210)

Fluorocyclization of N‑Propargylamides to Oxazoles by Electrochemically Generated ArIF2

open access: yes, 2019
A sustainable synthesis of 5-fluoromethyl-2-oxazoles by use of electrochemistry has been demonstrated. Hypervalent ArIF2 is generated by direct electrochemical oxidation of iodoarene ArI in Et3N·5HF and mediates the fluorocyclization of N-propargylamides
John D. Herszman (7378742)   +2 more
core   +1 more source

Modification of the existing maximum residue levels for propyzamide in oilseeds and honey

open access: yesEFSA Journal, Volume 24, Issue 10, October 2026.
Abstract In accordance with Article 6 of Regulation (EC) No 396/2005, the applicant Corteva submitted a request to the competent national authority in Sweden to modify the existing maximum residue levels (MRLs) for the active substance propyzamide in oilseed rape, mustard seeds, gold of pleasure seeds, linseeds, sesame seeds, hemp seeds, borage seeds ...
European Food Safety Authority (EFSA)   +25 more
wiley   +1 more source

Synthesis of Functionalized Oxazoles Via Silver Catalyzed Cyclization of Propargylamides and Allenylamides

open access: yes, 2013
Synthesis of Functionalized Oxazoles Via Silver Catalyzed Cyclization of Propargylamides and ...
易如霞, 吴凡, 万伯顺, 呼延成
core  

Synthesis of some Heterocyclic Compounds Derived from

open access: yesمجلة بغداد للعلوم, 2013
The 4-(?-bromo acetyl)-4?-toluene sulfonanilide (2) was used as key intermediate to synthesize new heterocyclic compounds. This bromo compound was synthesized via sulfonation of amino group of p-amino acetophenone using Hinsburg method with 4-toluene ...
Baghdad Science Journal
doaj   +1 more source

Evaluation of In Vitro Anti-inflammatory Activity of Azomethines of Aryl Oxazoles

open access: yesE-Journal of Chemistry, 2011
Ability to inhibit erythrocyte hemolysis is often used as a characteristic of the membrane stabilising action of chemical compounds. Azomethines of aryl oxazoles were evaluated for anti-inflammatory by in vitro hemolytic membrane stabilising study.
V. Niraimathi, A. Jerad Suresh, T. Latha
doaj   +1 more source

New heterocycles having double characters; as antimicrobial and surface active agents.

open access: yesGrasas y Aceites, 2004
Fatty acids isothiocyanate (1) was used as a starting material to synthesize some important heterocycles such as triazoles, oxazoles, thiazoles, benzoxazoles and quinazolines by treating with different types of nucleophiles such as nitrogen nucleophiles,
M. S. Amine   +4 more
doaj   +1 more source

A Direct Synthesis of Oxazoles from Aldehydes

open access: yes, 2016
An expedient method for the direct conversion of aldehydes to 2,4-disubstituted oxazoles is presented. The method relies on the oxidation of an oxazolidine formed from the condensation of serine with an aldehyde and proceeds through a 2,5-dihydrooxazole ...
Thomas H. Graham (2141350)
core   +2 more sources

Synthesis of substituted oxazoles via Pd-catalyzed tandem oxidative cyclization

open access: yes, 2017
An easy approach to access multisubstituted oxazoles via tandem oxidative cyclization is developed.
Wei Zhang   +4 more
core   +1 more source

Gallium-containing polymer brush film as efficient supported Lewis acid catalyst in a glass microreactor

open access: yesBeilstein Journal of Organic Chemistry, 2013
Polystyrene sulfonate polymer brushes, grown on the interior of the microchannels in a microreactor, have been used for the anchoring of gallium as a Lewis acid catalyst.
Rajesh Munirathinam   +7 more
doaj   +1 more source

Synthesis of Highly Substituted Oxazoles through Iodine(III)-Mediated Reactions of Ketones with Nitriles

open access: yesMolecules, 2012
In the presence of trifluoromethanesulfonic acid (TfOH) or bis(trifluoromethane-sulfonyl)imide (Tf2NH), iodosobenzene (PhI=O) efficiently promoted the reactions of dicarbonyl compounds as well as monocarbonyl compounds with nitriles to give 2,4 ...
Yuji Hanzawa, Akio Saito, Nao Hyodo
doaj   +1 more source

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