Results 231 to 240 of about 17,490 (306)

Telangiectasias induced by combination tucatinib and ado-trastuzumab emtansine in a patient with metastatic breast cancer. [PDF]

Breast Dis
Rodriguez GF, Shah A, Maderal AD.
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Electrochemical Organoselenium Catalysis for the Selective Activation of Alkynes: Easy Access to Carbonyl-pyrroles/oxazoles from N-Propargyl Enamines/Amides.

Organic Letters, 2023
Intramolecular electro-oxidative addition of enamines or amides to nonactivated alkynes was attained to access carbonyl-pyrroles or -oxazoles from N-propargyl derivatives. Organoselenium was employed as the electrocatalyst, which played a crucial role as
Mrinmay Baidya, Jhilik Dutta, Suman De Sarkar   +2 more
semanticscholar   +1 more source

Electrochemical Synthesis of Polysubstituted Oxazoles from Ketones and Acetonitrile.

Organic Letters, 2022
Herein we report an electrochemical strategy for the construction of polysubstituted oxazoles from easily available ketones and acetonitrile under room temperature.
Liang Bao, Chen Liu, Wenyi Li, Jiage Yu, Min Wang, Yunfei Zhang   +5 more
semanticscholar   +1 more source

Chemodivergent Synthesis of Oxazoles and Oxime Ethers Initiated by Selective C-N/C-O Formation of Oximes and Diazo Esters.

Organic Letters, 2021
Chemodivergent reactions of oximes and diazo esters involving Rh-catalyzed [3+2] annulation and photodriven O-H insertion have been developed to generate oxazoles and oxime ethers.
Zhenjie Qi, Shaozhong Wang
semanticscholar   +1 more source

Merging Gold/Copper Catalysis and Copper/Photoredox Catalysis: An Approach to Alkyl Oxazoles from N-Propargylamides.

Journal of Organic Chemistry, 2021
Here, we report a mild and highly efficient approach to alkyl oxazoles through merging gold/copper catalysis and copper/photoredox catalysis. Various alkyl oxazoles are synthesized from N-propargylamides with alkyl halides in good to excellent yields ...
Yantao Liu, Keyong Zhu, Yuting Kong, X. Li, J. Cui, Yifan Xia, Jingjing Zhao, S. Duan, Pan Li   +8 more
semanticscholar   +1 more source

Imidazoles and Oxazoles from Lapachones and Phenanthrene‐9,10‐dione: A Journey through their Synthesis, Biological Studies, and Optical Applications

The chemical record, 2021
Diverse structural frameworks are found in natural compounds and are well known for their chemical and biological properties; such compounds include the imidazoles and oxazoles.
Gleiston G. Dias, Esther R S Paz, Mateus P. Nunes, Renato L Carvalho, M. Rodrigues, F. Rodembusch, Eufrânio N. da Silva Júnior   +6 more
semanticscholar   +1 more source

ChemInform Abstract: Synthesis of Functionalized Oxazoles and Bis‐Oxazoles. [PDF]

ChemInform, 1998
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Christopher J. Moody, Richard T. Buck, Mark C. Bagley, S. L. Hind   +3 more
openaire   +1 more source

Cycloaddition of Fluorinated Oxazoles. [PDF]

ChemInform, 2005
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.
N. V. Vasil'ev, G. V. Zatonskii, M. Yu. Antipin, D. V. Romanov, K. A. Lyssenko, V. M. Koshelev   +5 more
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Synthesis and Reactions of Oxazoles [PDF]

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
David C. Palmer, Srikanth Venkatraman
openaire   +1 more source

Fluorocyclization of N-Propargylamides to Oxazoles by Electrochemically Generated ArIF2.

Organic Letters, 2019
A sustainable synthesis of 5-fluoromethyl-2-oxazoles by use of electrochemistry has been demonstrated. Hypervalent ArIF2 is generated by direct electrochemical oxidation of iodoarene ArI in Et3N·5HF and mediates the fluorocyclization of N-propargylamides
John D Herszman, M. Berger, S. Waldvogel
semanticscholar   +1 more source