Results 1 to 10 of about 10,845 (167)

Strain engineering of single-site Cu on SWCNTs for highly efficient diene cyclopropanation [PDF]

open access: yesNature Communications
Cyclopropane-based aerospace fuels exhibit the excellent volumetric calorific value, leading to broad application prospects in aircrafts. However, due to the highly rigid structure of the cyclopropane (compared to cyclobutane or cyclopentane, etc.) and ...
Yuan Yao   +5 more
doaj   +2 more sources

Thermodynamics and polarity-driven properties of fluorinated cyclopropanes [PDF]

open access: yesBeilstein Journal of Organic Chemistry
Cyclopropane is a significant alicyclic motif, widely utilized in medicinal chemistry, while fluorination serves as a powerful tool to modulate properties that enhance the performance of pharmaceuticals and materials. This quantum-chemical study explores
Matheus P. Freitas
doaj   +2 more sources

Regulation of membrane protein activity by cyclopropane fatty acids in Escherichia coli lipid environment [PDF]

open access: yesCommunications Biology
Membrane proteins are crucial in cellular processes like signal and energy transduction and are influenced by the properties of the surrounding lipid bilayer.
Kazumasa Hori   +9 more
doaj   +2 more sources

The Formation of Small Amounts of Cyclopropane during Pulsed Pyrolysis of C4–C5 Acyclic Alkanes in the Adiabatic Compression Reactor

open access: yesReactions, 2023
During high-temperature pulse pyrolysis of acyclic butanes and pentanes under adiabatic compression conditions, cyclopropane, a stressed cyclic hydrocarbon, was found among the reaction products in small quantities for the first time. The analysis of the
Igor V. Bilera
doaj   +1 more source

Antitumor Profile of Carbon-Bridged Steroids (CBS) and Triterpenoids

open access: yesMarine Drugs, 2021
This review focuses on the rare group of carbon-bridged steroids (CBS) and triterpenoids found in various natural sources such as green, yellow-green, and red algae, marine sponges, soft corals, ascidians, starfish, and other marine invertebrates.
Valery M. Dembitsky   +2 more
doaj   +1 more source

Synthesis of Novel C/D Ring Modified Bile Acids

open access: yesMolecules, 2022
Bile acid receptors have been identified as important targets for the development of new therapeutics to treat various metabolic and inflammatory diseases.
Roselis A. Landaeta Aponte   +6 more
doaj   +1 more source

The Synthesis of Functionalized Dimethylphosphinoyl Cyclopropanes and Cyclobutanes

open access: yesЖурнал органічної та фармацевтичної хімії, 2023
A simple preparative approach to a series of functionalized dimethylphosphinoyl-containing cyclopropanes and cyclobutanes has been developed; it is based on cyclocondensation of dimethylphosphinoyl acetonitrile with 1,2- and 1,3-dibromoalkanes. Synthetic
Anastasiia M. Aleksandrova   +2 more
doaj   +1 more source

Lipophilicity trends upon fluorination of isopropyl, cyclopropyl and 3-oxetanyl groups

open access: yesBeilstein Journal of Organic Chemistry, 2020
A systematic comparison of lipophilicity modulations upon fluorination of isopropyl, cyclopropyl and 3-oxetanyl substituents, at a single carbon atom, is provided using directly comparable, and easily accessible model compounds.
Benjamin Jeffries   +9 more
doaj   +1 more source

Synthesis of Thiadiazoles and 1,2,4-Triazoles Derived from Cyclopropane Dicarboxylic Acid

open access: yesMolecules, 2005
New heterocyclic derivatives of cyclopropane dicarboxylic acid comprising thiadiazole and 1,2,4-triazole moieties are reported. Reaction of 1,1-cyclopropane dicarboxylic acid (1) with thiosemicarbazide and phosphorous oxychloride resulted in 1,1-bis (2 ...
M. Aouad   +3 more
doaj   +1 more source

Recent Developments in Stereoselective Reactions of Sulfonium Ylides

open access: yesOrganics, 2022
This review describes advances in the literature since the mid-1990s in the area of reactions of sulfonium ylide chemistry, with particular attention paid to stereoselective examples.
Mukulesh Mondal   +4 more
doaj   +1 more source

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