Results 131 to 140 of about 21,746 (290)

Insights into the Structural Determinants Required for High-Affinity Binding of Chiral Cyclopropane-Containing Ligands to α4β2-Nicotinic Acetylcholine Receptors: An Integrated Approach to Behaviorally Active Nicotinic Ligands

, 2012
Han-Kun Zhang, J. Brek Eaton, Li-Fang Yu, Mieke Nys, Angelica Mazzolari, René van Elk, August B. Smit, Vadim Alexandrov, Taleen Hanania, Emily Sabath, Allison Fedolak, Daniela Brunner, Ronald J. Lukas, Giulio Vistoli, Chris Ulens, Alan P. Kozikowski   +15 more
openalex   +2 more sources

Pyrazolines XI. Determination of the Stereochemical Changes at Carbons-3 and -5 of 1-Pyrazolines on Their Thermal Conversion to Cyclopropanes [PDF]

, 1971
Donald E. McGreer, James W. McKinley
openalex   +1 more source

Ring Strain‐Promoted Activation of Pyridines by a Saturated BSi2 Cycle

Angewandte Chemie International Edition, Volume 65, Issue 1, 2 January 2026.
We report a highly strained boratadisilirane with the elusive anionic BSi2 ring motif. Cleavage of the Si─Si bond during reactions with pyridine derivatives activates them in three different ways: 1) for pyridine itself selective ortho‐CH activation and concomitant hydrogen transfer to a second pyridine molecule occurs, 2) with dimethylaminopyridine ...
Nasrina Parvin, Ankur, Philipp Willmes, Bernd Morgenstern, Cem B. Yildiz, David Scheschkewitz   +5 more
wiley   +1 more source

Studies on Nitrogen-containing Heterocyclic Compounds. XLVII. On the Preparations of Spiro [cyclopropane-cyclopropa [c]-quinoline] Derivatives from Quinaldine

, 1980
Yoshiki Hamada, Michiharu Sugiura
openalex   +2 more sources

Citrus reticulata Blanco: A Review on Chemical Composition and Biological Activities

Chemistry &Biodiversity, Volume 23, Issue 1, January 2026.
This review compiles chemical information and biological activities from 49 studies on Citrus reticulata. The fruit peels stand out for their high content of methoxylated monoterpenes and flavonoids with antioxidant, anti‐inflammatory, and antimicrobial activities.
José Walber Gonçalves Castro, Geane Gabriele de Oliveira Souza, José Galberto Martins da Costa, Fabíola Fernandes Galvão Rodrigues   +3 more
wiley   +1 more source

Lewis acid-catalyzed cycloaddition reactions of donor-acceptor cyclopropanes

, 2019
Shanina D. Sanders
openalex   +2 more sources

Hydroboration of Substituted Cyclopropane: A Density Functional Theory Study [PDF]

, 2014
Satya P. Singh, Pompozhi Protasis Thankachan   +1 more
openalex   +1 more source

About Bases and Superbases

CHIMIA, 1996
Butyllithium requires activation in order to become capable of abstracting a proton from weakly acidic hydrocarbons like cyclopropanes, simple olefins, or arenes.
Florence Mongin, Raimondo Maggi, Manfred Schlosser   +2 more
doaj   +2 more sources

Silatranylnitrilium Hexachloridoantimonate, its Brønsted Base‐Assisted CC‐Bond Formation and Transformation to an Unprecedented Carbene‐Type SbCl5 Complex

ChemistryEurope, Volume 4, Issue 1, January 2026.
Reacting 1‐hydridosilatrane with triphenylcarbenium hexachloridoantimonate in acetonitrile solution and in the presence of 4‐dimethylaminopyridine combines the world of silatranes with the world of carbenes, giving an unprecedented carbene‐type antimony pentachloride complex. This finding offers a new playground for exciting new chemistry.
David Mroß, Matthias Mawick, Lyuba Iovkova, Dieter Schollmeyer, Serhiy Demeshko, Viatcheslav Jouikov, Norbert Krause, Klaus Jurkschat   +7 more
wiley   +1 more source

Directing Group Enhanced Carbonylative Ring Expansions of Amino Substituted Cyclopropanes [PDF]

, 2013
John F. Bower
openalex   +1 more source