Results 21 to 30 of about 5,925 (227)
Beilstein Journal of Organic Chemistry, 2018 Hypervalent iodine-mediated olefin functionalization provides a rapid gateway towards accessing both various heterocyclic cores and functional groups.
Sang Won Park +6 more
doaj +1 more source
Enantioselective 5-exo-Fluorocyclization of Ene-Oximes
Molecules, 2019 The enantioselective 5-exo-fluorocyclization of ene-oxime compounds was demonstrated under phase-transfer catalysis. Although deprotonative fluorinations competed, the chemical yields and the ee values of the desired isoxazoline products were generally ...
Taiki Rouno +5 more
doaj +1 more source
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 +3 more
doaj +1 more source
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 +8 more
doaj +1 more source
Navigating Nitration Chemistry: A Practical Guide to Reagents, Mechanisms, and Selectivity
Angewandte Chemie, EarlyView.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 +2 more
wiley +2 more sources
Anti-cancer activity of novel dibenzo[b,f]azepine tethered isoxazoline derivatives [PDF]
, 2012 10.1186/1472-6769-12-5BMC Chemical ...
Anilkumar, N.C. +10 more
core +3 more sources
Synthesis and antibacterial studies of some novel isoxazoline derivatives [PDF]
Journal of the Serbian Chemical Society, 2007 A series of 3-[3-(2,4-dichloro-5-fluorophenyl)-5-(2-furyl)-4,5-dihydro-1H-pyrazol-1-yl]-5-(substituted phenyl/2-thienyl)isoxazolines (4a-j) were prepared. The structures of the isoxazoline derivatives were confirmed on the bases of elemental analysis and
TEJASKUMAR SHAH, VIKAS DESAI
doaj +3 more sources
Quelles compétences pour les bibliothèques de recherche ? [PDF]
, 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) +4 more
core +7 more sources
Chemical and Pharmaceutical Bulletin, 1964 5'-Methyl-5α-androstano[16, 17-c]isoxazolin-3β-ol (Va) and 5'-methylandrost-5-eno[16, 17-c]isoxazolin-3β-ol (Vb), were obtained by treatment of 3β, 20α-dihydroxy-5α-pregnan-16-one 3-acetate 16-oxime (IIIa) or 3β, 20α-dihydroxypregn-5-en-16-one 3-acetate 16-oxime (IIIb) with tosyl chloride in pyridine followed by alkaline hydrolysis. Oxidation of Va and
S, NOGUCHI, M, IMANISHI, K, MORITA
openaire +3 more sources