Results 61 to 70 of about 17,328 (234)
Oxidative Generation and Reactivity of the Cyclopropyl Radical From a Martin Silicate
A photoredox strategy employing Martin silicates enables the oxidative generation and controlled capture of cyclopropyl radicals, including the naked one, long considered challenging intermediates. The method affords functionalized cyclopropanes through both Giese‐type additions and dual nickel/photoredox C(sp3)−C(sp2) cross‐couplings.
Amal Lakhal +3 more
wiley +1 more source
The total synthesis of isotopically labelled (9R,10S)-dihydrosterculic acid, a usual cyclopropane fatty acid with biologically relevant toxicity upon desaturation in vivo, is reported. A diastereoselective Corey–Chaykovsky reaction was employed to form
Samuel W. J. Shields +2 more
doaj +1 more source
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley +1 more source
2-(Methoxymethoxy)-1-(4-oxobicyclo[3.1.0]hexan-1-yl)ethyl 4-nitrobenzoate
In the title compound, C17H19NO7, the cyclopentane ring is in an envelope conformation in which the methylene group forming the flap is cis to the cyclopropane group.
Jing Li +2 more
doaj +1 more source
Clathrate hydrate crystallization
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley +1 more source
(E)-3-(2-Chloro-3,3,3-trifluoroprop-1-enyl)-N-(3-methoxyphenyl)-2,2-dimethylcyclopropanecarboxamide
The title compound, C16H17ClF3NO2, was synthesized from 3-[(E)-2-chloro-3,3,3-trifluoroprop-1-enyl]-2,2-dimethylcyclopropanecarboxylic acid and 3-methoxybenzenamine.
Fan-Yong Yan, Dong-Qing Liu
doaj +1 more source
The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida +3 more
wiley +1 more source
Chemoselective hydride abstractor iminometalloids, derived from O‐mesylacetoxime (MAO) using Rh2(II/II) or Cu(I) catalysts, can activate the C–Hα bonds of alcohols and aldehydes ultimately forming ketones, carboxylic acids, and esters even in the presence of C–H bonds with comparable bond strengths.
Raghunath Reddy Anugu +2 more
wiley +1 more source
Accurate dissociation energies of two isomers of the 1-naphthol⋅cyclopropane complex [PDF]
The 1-naphthol⋅cyclopropane intermolecular complex is formed in a supersonic jet and investigated by resonant two-photon ionization (R2PI) spectroscopy, UV holeburning, and stimulated emission pumping (SEP)-R2PI spectroscopy. Two very different structure
Klopper, Wim +20 more
core +1 more source
Single‐electron transfer‐mediated reductive carbonyl–olefin couplings are valuable carbon–carbon bond forming reactions. However, limitations persist for couplings of aliphatic aldehydes with electron‐deficient olefins. Here, we report a simple, photocatalyst‐free protocol that overcomes these limitations by using a Hantzsch ester anion as a ...
Zhihang Li, Adam Noble
wiley +2 more sources

