Regioselective Formation of 2,5-Disubstituted Oxazoles Via Copper(I)-Catalyzed Cycloaddition of Acyl Azides and 1-Alkynes [PDF]
, 2011 The reaction of 1-alkynes with acylazides in the presence of [Tpm*,BrCu(NCMe)]BF4 (Tpm*,Br = tris(3,5-dimethyl-4-bromopyrazolyl)methane) as the catalyst provides 2,5-oxazoles in moderate to high yields.
Cano Rico, Israel +3 more
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Defluorinative Cyclization of Enamides with Fluoroalkyl Halides Through Two Vicinal C(sp3)─F Bonds Functionalization [PDF]
Advanced ScienceIntroducing distinctive functional groups to expand the structural diversity and improve the intrinsic properties of parent molecules has been an essential pursuit in organic chemistry.
Yu‐Lan Chen +7 more
doaj +2 more sources
Synthesis of Highly Substituted Oxazoles through Iodine(III)-Mediated Reactions of Ketones with Nitriles [PDF]
Molecules, 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 +2 more sources
Carbon-13 nuclear magnetic resonance spectra of oxazoles [PDF]
, 1979 Hiemstra, Henk +3 more
core +4 more sources
Formation of oxazoles from 2-methylsulfanyl-N-phenacylpyridinium salts
ARKIVOC, 2001 Eugene V. Babaev, Anatoliy F. Nasonov
doaj +3 more sources
The Journal of Chemical Physics, 2022 We have measured, analyzed, and simulated the ground state valence photoelectron spectrum, x-ray absorption (XA) spectrum, x-ray photoelectron (XP) spectrum as well as normal and resonant Auger–Meitner electron (AE) spectrum of oxazole at the carbon, oxygen, and nitrogen K-edge in order to understand its electronic structure.
Anna Kristina Schnack-Petersen +8 more
openaire +3 more sources
Suzuki Coupling of Oxazoles [PDF]
Organic Letters, 2006 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.
Flegeau, Emmanuel Ferrer +2 more
openaire +5 more sources
Performance Analysis of Regularized Linear Regression Models for Oxazolines and Oxazoles Derivatives Descriptor Dataset [PDF]
published International Journal of Computational Science and
Information Technology (IJCSITY) Vol.1, No.4, November 2013, 2013 Regularized regression techniques for linear regression have been created the last few ten years to reduce the flaws of ordinary least squares regression with regard to prediction accuracy. In this paper, new methods for using regularized regression in model choice are introduced, and we distinguish the conditions in which regularized regression ...
Chanabasayya .M
openalex +2 more sources
Weak Intermolecular Interactions in a Series of Bioactive Oxazoles
Molecules, 2021 The intermolecular interactions in a series of nine similar 4,5-phenyl-oxazoles were studied on the basis of crystal structures determined by X-ray diffraction. The crystal architectures were analyzed for the importance and hierarchies of different, weak
Anita M. Grześkiewicz +2 more
doaj +1 more source
Synthesis and Characterization of Novel Heterocyclic Chalcones from 1-Phenyl-1H-pyrazol-3-ol
Molecules, 2022 An efficient synthetic route to construct diverse pyrazole-based chalcones from 1-phenyl-1H-pyrazol-3-ols bearing a formyl or acetyl group on the C4 position of pyrazole ring, employing a base-catalysed Claisen–Schmidt condensation reaction, is described.
Arminas Urbonavičius +9 more
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