Results 91 to 100 of about 2,936 (205)
A modular approach to prepare enantioenriched cyclobutanes: synthesis of (+)-rumphellaone A [PDF]
, 2019 A modular synthesis of enantioenriched polyfunctionalized cyclobutanes was developed that features an 8-aminoquinolinamide directed C–H arylation reaction. The C–H arylation products were derivatized through subsequent decarboxylative coupling processes.
Beck, Jordan C. +3 more
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The Thermal Decomposition of Cyclobutane [PDF]
Proceedings of the National Academy of Sciences, 1952 F, Kern, W D, Walters
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SYNTHESIS OF CYCLOBUTANE ANALOGUES
Bulletin of the Chemical Society of Ethiopia, 2009 2-(3-Acetyl-2,2-dimethylcyclobutyl)acetic acid (pinonic acid) was synthesized using α-pinene as raw material and potassium permanganate as oxidant. This compound reacted with substituted aniline to produce eight kinds of derivatives with cyclobutane moiety. The yields of the cyclobutane analogues ranged from 24.9 to 78.2 %. KEY WORDS: Cyclobutane
Yan Bai Yin +4 more
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Revista de Ciências Farmacêuticas Básica e Aplicada, 2010 O objetivo deste trabalho é avaliar a eficácia e a segurança da dose de 20 mg/dia de sibutramina em voluntários obesos, com IMC superior a 35, e compará-las com a dose de 10 mg/dia e à mudança de estilo de vida de pacientes com IMC inferior a 35 (a ...
Carlos Alberto Menezes +4 more
doaj
Chemo- and Regioselective Synthesis of Alkynyl Cyclobutanes by Visible Light Photocatalysis
, 2018 Here is the first visible light catalytic intermolecular cross [2 + 2] cycloaddition of enynes with alkenes to alkynyl cyclobutanes established with good functional group tolerance and high reaction efficiency and selectivity.
Tung, Chen-Ho +23 more
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, 1965 The temperature dependence of the geminal fluorine-fluorine chemical-shift differences in a variety of unsymmetrically substituted cyclobutanes is interpreted in terms of a classical equilibrium between axial and equatorial conformations.
Roberts, John D., Lambert, Joseph B.
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, 2016 A highly diastereoselective and enantioselective Cu(II)/SaBOX-catalyzed [2 + 2] cycloaddition of methylidenemalonate and multisubstituted alkenes was developed to furnish optically active cyclobutanes in high yields with >99/1 dr and up to >99% ee.
Yong Tang (161879) +5 more
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, 2016 The treatment of readily available propargylic indole-3-acetates with a catalytic amount of AuCl(PPh3)/AgSbF6 leads to tandem activations of the propargylic esters and the in situ generated allenylic esters, resulting in expeditious access to highly ...
Liming Zhang (213971)
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Carbocycles and heterocycles are highly valuable synthetic building blocks, especially when they incorporate functional handles, such as amines. Palladium-catalyzed alkene difunctionalization is a mild and versatile method for the construction of these ...
Hatt, Jessica
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