Results 271 to 280 of about 17,490 (306)
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Imidazole, oxazole and thiazole alkaloids
Natural Product Reports, 2006AbstractChemInform 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.
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Dimerization of Phenylalanine: An Approach to Thiazoles and Oxazoles Involved S/O‐Insertion
, 2018We herein describe the development of a dimerization procedure for amino acids to prepare 2,5-disubstituted thiazoles and oxazoles in the presence of Na2S⋅9H2O and H2O, respectively.
Yan Cheng +8 more
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Synthesis of Substituted Oxazoles by Visible-Light Photocatalysis.
Journal of Organic Chemistry, 2016A simple and practical method for the synthesis of substituted oxazoles has been developed using readily available α-bromoketones and benzylamines by visible-light photocatalysis at room temperature.
T. Chatterjee, Ji-young Cho, E. Cho
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Condensation of oxazoles with dienophiles
Tetrahedron, 1969Abstract Pyridoxine analogues have been synthesized via a Diels—Alder reaction of 5-ethoxyoxazoles with dimethyl maleate followed by reduction. The products on oxidation with manganese dioxide yielded pyridoxal analogues. Pyridoxamine derivatives were obtained by reduction of the pyridoxal oximes. Phosphorylation of the pyridoxamine analogues and the
K. F. Turchin +5 more
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, 2018
A Ni-catalyzed C−F bond functionalization of unactivated aryl fluorides with oxazoles as coupling partners was developed. Various arylated oxazoles could be obtained in moderate to good yields in the presence of Ni(cod)2/IMes catalytic system.
Youzhi Yin +6 more
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A Ni-catalyzed C−F bond functionalization of unactivated aryl fluorides with oxazoles as coupling partners was developed. Various arylated oxazoles could be obtained in moderate to good yields in the presence of Ni(cod)2/IMes catalytic system.
Youzhi Yin +6 more
semanticscholar +1 more source
Journal of Organic Chemistry, 2017
An acid-promoted multicomponent reaction for the synthesis of diverse fully substituted oxazole derivatives from simple and readily available arylglyoxal monohydrates, nitriles, and various C-nucleophiles has been developed.
Rongrong Zhou +5 more
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An acid-promoted multicomponent reaction for the synthesis of diverse fully substituted oxazole derivatives from simple and readily available arylglyoxal monohydrates, nitriles, and various C-nucleophiles has been developed.
Rongrong Zhou +5 more
semanticscholar +1 more source
Organic Letters, 2017
An efficient method for the synthesis of dihydrobenzo[d]isoxazoles and dihydrobenzo[d]oxazoles bearing a quaternary carbon center has been developed. The reaction involves generation of a ketonitrone intermediate in situ from a ketoxime and an aryne.
T. Yao, Beige Ren, Bo Wang, Yanna Zhao
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An efficient method for the synthesis of dihydrobenzo[d]isoxazoles and dihydrobenzo[d]oxazoles bearing a quaternary carbon center has been developed. The reaction involves generation of a ketonitrone intermediate in situ from a ketoxime and an aryne.
T. Yao, Beige Ren, Bo Wang, Yanna Zhao
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Tetrahedron Letters, 1980
Oxazoles are prepared from the ketoximes in a single pot sequence.
Bhatt, MV, Reddy, Gaddam Subba
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Oxazoles are prepared from the ketoximes in a single pot sequence.
Bhatt, MV, Reddy, Gaddam Subba
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Synthesis and Properties of Polyfluorinated Oxazoles.
ChemInform, 2005AbstractChemInform 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.
V. F. Cherstkov +4 more
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