Results 91 to 100 of about 5,265 (218)
Tomato fruit extract: an environmentally benign catalytic medium for the synthesis of isoxazoles derivatives [PDF]
, 2021 1362-1367One-pot multicomponent reaction between aromatic aldehyde, hydroxylamine hydrochloride and ethyl acetoacetate/ methyl acetoacetate for the synthesis of isoxazoles derivatives by employing tomato fruit extract as a catalytic medium has been ...
Meshram, Gangadhar A +2 more
core
, 1997 5-Alkoxy-isoxazoles and N,N-disubstituted-5-isoxazolamines were found to isomerize to azirine derivatives by the use of iron dichloride as catalyst.
A. Bini +3 more
core +1 more source
Sugar Isoxazole Conjugate Synthesis via Glucose С(З) Modification
Modification of С(З) position in glucose leads to discovery of new previously unknown isoxazole sugar conjugates. As а starting material we hаvе used inexpensive diacetone-D-glucose and have transformed it to the isoxazoles containing ...
Lugiņina, Jevgeņija +3 more
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Regioselective Synthesis of Polysubstituted Pyrazoles and Isoxazoles
, 2016 A regioselective synthesis has been developed for the preparation of unsymmetrical 1,3,5-triaryl-4-alkylpyrazolines and -pyrazoles by treatment of α-benzotriazolyl-α,β-unsaturated ketones with monosubstituted hydrazines followed by alkylation at the 4 ...
Peter J. Steel (1724674) +4 more
core +1 more source
Effects of Isoxazolyl Steroids on Key Genes of Sonic Hedgehog Cascade Expression in Tumor Cells
MoleculesActivation of the Hedgehog (Hh) signaling pathway is often associated with the progression of various types of cancer. The purpose of study was to search for inhibitors of the Hh signaling pathway among eight compounds belonging to the group of ...
Anna Aleksandrova +10 more
doaj +1 more source
Iterative Assembly of Nitrile Oxides and Ynamides: Synthesis of Isoxazoles and Pyrroles
, 2019 Described is an iterative assembly of nitrile oxides and ynamides for the synthesis of isoxazoles and pyrroles. The nitrile oxides could undergo Cu(I)-free cyclization with terminal ynamides for accessing isoxazoles, which could engage in another ...
Changwei Chen (4018946) +1 more
core +2 more sources
Journal of the Brazilian Chemical Society, 2006 The reactions of a serie of the 2-trifluoroacetyl-1-methoxy-1-cycloalkenes (1a-1e) and 2-trifluoroacetylcycloalkanones (2a-2e) with molecular bromine to obtain omega-bromo-alpha-trifluoroacetylcycloalkanones (3a-3e, 4a) is reported. Was determined that 2-
Flores Alex F. C. +5 more
doaj
, 2012 International audienceAn efficient approach has been described for the synthesis of 3,5-disubstituted isoxazoles from propargylic alcohols. The strategy involves a one-pot p-TSA-catalyzed N-propargylation of protected hydroxylamines followed by a TBAF ...
Jithender, Enukonda +4 more
core +1 more source
, 1996 The synthesis of furo[3,4-d]isoxazoles (3) and inter- and intramolecular cycloaddition reactions (to 4, 5a,b) are reported. The structures of 3k, 5b and 6 have been clarified by X-ray crystallography.
Friedrichsen, W +5 more
core +1 more source