Results 291 to 300 of about 2,301,251 (349)

Ring Transformations in Tetrazole Chemistry

Journal f�r Praktische Chemie/Chemiker-Zeitung, 1998
Transformations of heterocycles into tetrazoles as well as conversions of the latter into other rings are reviewed. The literature is covered through early 1998 (material that has been surveyed by Van der Plas [1] and Benson [2] is resumed in abridged fashion).
openaire   +1 more source

ChemInform Abstract: 1‐AZIRINE RING CHEMISTRY

Chemischer Informationsdienst, 1978
AbstractSynthese und Reaktionen von 1‐Azirinen werden untersucht.
V. NAIR, K. H. KIM
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Chemistry of the solanidane ring system

Journal of the Chemical Society C: Organic, 1971
The reaction of acetyldemissidine and acetylsolanidine with cyanogen bromide is described and the results of the lithium aluminium hydride reduction of the bromo-cyanamides so produced are discussed. The hydrolysis of acetyldemissidine bromo-cyanamide under very mild conditions caused a retro-von Braun reaction to afford the initial alkaloid.
J. A. Beisler, Y. Sato
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A review of fatty epoxide ring opening reactions: Chemistry, recent advances, and applications

Journal of the American Oil Chemists Society, 2022
B. Moser, S. Cermak, K. Doll, J. Kenar, Brajendra K. Sharma   +4 more
semanticscholar   +1 more source

The application of coffee-ring effect in analytical chemistry

Trends in Analytical Chemistry (TrAC), 2022
Mingwei Yang, Dejian Chen, Jie Hu, Xinyu Zheng, Zu-jin Lin, Haomiao Zhu   +5 more
semanticscholar   +1 more source

Medium-ring diphosphines: synthesis and transannular chemistry

Coordination Chemistry Reviews, 1998
Abstract Medium-ring diphosphines offer unique opportunities to study the interactions between phosphorus atoms. In addition, monocyclic medium-ring diphosphines may be very useful ligands in transition metal complexes. A number of useful synthetic routes to these compounds have been developed, but further efforts in this direction might be rewarding.
Alder, RW, Read, D
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Imaging the Photochemical Ring-Opening of 1,3-Cyclohexadiene by Ultrafast Electron Diffraction

, 2018
The ultrafast photoinduced ring-opening of 1,3-cyclohexadiene constitutes a textbook example of electrocyclic reactions in organic chemistry and a model for photobiological reactions in vitamin D synthesis.
T. Wolf, D. Sanchez, J. Yang, R. Parrish, J. P. Nunes, M. Centurion, R. Coffee, J. Cryan, M. Gühr, K. Hegazy, A. Kirrander, R. Li, J. Ruddock, X. Shen, T. Vecchione, S. Weathersby, P. Weber, K. Wilkin, H. Yong, Q. Zheng, X. Wang, M. Minitti, T. Martínez   +22 more
semanticscholar   +1 more source

Chemistry of Small Rings

2023
V. K. Ahluwalia, Renu Aggarwal
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Chemistry and pharmacology of ring-fluorinated catecholamines

Journal of Fluorine Chemistry, 1995
Abstract Naturally-occurring catecholamines have important and diverse physiological roles, including serving as chemical neurotransmitters. The responses of catecholamines functioning as adrenergic agonists can be profoundly altered by ring fluorination, depending on the site of fluorination and the nature of the agonist.
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Conformational Flexibility of Mammalian Cytochrome P450 2B4 in Binding Imidazole Inhibitors with Different Ring Chemistry and Side Chains

Journal of Biological Chemistry, 2006
Bilikallahalli K. Muralidhara, S. Negi, Christopher C Chin, W. Braun, J. Halpert   +4 more
semanticscholar   +1 more source