Results 81 to 90 of about 32,281 (298)
Simple Access to Isoxazole-Containing Heterocyclic Hybrids: Isoxazole/Oxazole and Isoxazole/Pyridine
Abstract The synthesis of substituted isoxazole–oxazole hybrids by the noncatalytic reaction of methyl 2-diazo-2-(alkyl/aryl/hetarylisoxazol-5-yl)acetates with alkyl and aryl cyanides has been reported. According to DFT calculations, the reaction proceeds through the intermediate formation of a nitrile ylide and its ...
A. E. Taishev+3 more
openaire +1 more source
A novel and convenient silver-catalyzed radical cascade cyclization toward a large variety of 1,5-/1,3-dicarbonyl heterocycles containing a chroman-4-one, indanone, or 2,3-dihydroquinolin-4(1 H)-one moiety was developed, by reacting various 2 ...
Haoxiang Hu+10 more
semanticscholar +1 more source
This review summarizes the synthetic methodologies of the nitro‐substituted Donor‐Acceptor cyclopropanes (NCPs). Particularly from nitroalkenes including the Michael Initiated Ring Closure and the Oxidative Ring Closure of Michael Adducts, from Diazo Compounds bearing Nitro Group, from Nitromethane and its Derivatives; and after Oxidation of ...
Andriani G. Chaidali+2 more
wiley +1 more source
In pursuit of unsymmetrical precursors for the novel series of anthracenyl-isoxazole amide (AIM) antitumor agents, a series of substituted anthracenes were subjected to bromination and re-aromatization in our study, during which we solved four single ...
Michael J. Campbell+4 more
doaj +1 more source
3-Benzyl-5-methyl-1,2-benzoxazole 2-oxide
In the title compound, C15H13NO2, the isoxazole unit and the attached benzene ring are almost coplanar, making a dihedral angle of 1.42 (8)°.
G. Anuradha+3 more
doaj +1 more source
Synthesis of Isoxazoles via Electrophilic Cyclization. [PDF]
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Richard C. Larock, Jesse Waldo
openaire +4 more sources
Advances in Mechanochemical Methods for One‐Pot Multistep Organic Synthesis
Mechanochemical synthesis has emerged as a powerful and more sustainable alternative to conventional solution‐based methods, offering advantages such as no or only minimal solvent use, reduced reaction times, and simplified operational conditions.
Michael Schnürch, Nina Biedermann
wiley +1 more source
A novel series of thiophenes having biologically active sulfonamide 2-11, 3-methylisoxazole 12, 4-methoxybenzo[d] thiazole 13, quinoline 14, 15, benzoylphenylamino 16, and anthracene-9,10-dione 17 moieties were prepared.
Ghorab Mostafa M.+2 more
doaj +1 more source
The review focuses on relationships of oxadiazole derivative structures and their antimycobacterial activity including target structures in mycobacteria, in vitro or in vivo pharmacokinetic parameters, and toxicity. Apart from direct antimycobacterial activity, some 1,2,4‐oxadiazole derivatives can potentiate the antimycobacterial effect of ethionamide
Marta Kučerová‐Chlupáčová
wiley +1 more source
Crystal structure of (5-chloro-2-hydroxyphenyl)(3-methylisoxazolo[5,4-b]pyridin-5-yl)methanone
In the title compound, C14H9ClN2O3, the fused pyridine and isoxazole rings are approximately planar, making a dihedral angle of 1.14 (16)°. The molecule is twisted with the benzene ring and the mean plane through the fused pyridine-isoxazole ring system ...
Rajamani Raja+3 more
doaj +1 more source