Results 241 to 250 of about 28,372 (298)

Demethylenation of Cyclopropanes via Photoinduced Guest-to-Host Electron Transfer in an M6 L4 Cage.

Angewandte Chemie, 2019
Unusual demethylenation reactions of cyclopropanes under UV-light irradiation were found within a cavity of a photoactive coordination cage. The reaction proceeded via a guest-to-host electron transfer owing to the highly electron-deficient nature of the
W. Cullen, Hiroki Takezawa, M. Fujita
semanticscholar   +1 more source

Imidazol-5-one as an Acceptor in Donor-Acceptor Cyclopropanes: Cycloaddition with Aldehydes.

Organic Letters, 2020
Spiro[imidazol-5-one-4,1'-cyclopropanes] behave as donor-acceptor (D-A) cyclopropanes in a formal cycloaddition reaction with aldehydes. The activation of such type of cyclopropanes is achieved with an equivalent of Brønsted acid.
A. Mikhaylov, A. V. Kuleshov, P. Solyev, A. Korlyukov, P. Dorovatovskii, K. Mineev, M. Baranov   +6 more
semanticscholar   +1 more source

Cyclopropanes in organocatalytic transformations

, 2020
Organocatalysis represents a powerful and reliable tool in modern organic chemistry. Cyclopropanes are a versatile compound class whose reactivity exceeds that of other cyclic hydrocarbons.
C. Apel, M. Christmann
semanticscholar   +1 more source

Visible-Light-Mediated Synthesis of β-Chloro Ketones from Aryl Cyclopropanes.

Angewandte Chemie, 2019
We report the visible-light-mediated synthesis of β-chloro ketones from aryl cyclopropanes, oxygen, hydrochloric acid, and nitric acid. The operationally simple and catalyst-free method uses cheap standard laboratory reagents and displays broad ...
D. Petzold, Pardeep Singh, F. Almqvist, Burkhard König   +3 more
semanticscholar   +1 more source

Metal-catalysed C–C bond formation at cyclopropanes

Nature Reviews Chemistry, 2023
Alexis L. Gabbey, Katerina Scotchburn, Sophie A. L. Rousseaux   +2 more
semanticscholar   +1 more source

Cyclopropanation

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

CYCLOPROPANE

Medical Journal of Australia, 1942
M, BURNELL, R H, ORTON
openaire   +3 more sources

Lewis Acid Catalyzed Nucleophilic Ring Opening and 1,3-Bisfunctionalization of Donor-Acceptor Cyclopropanes with Hydroperoxides: Access to Highly Functionalized Peroxy/(α-Heteroatom Substituted)Peroxy Compounds.

Journal of Organic Chemistry, 2019
The Lewis acid catalyzed ring opening reaction of Donor-Acceptor (D-A) cyclopropanes with alkyl hydroperoxides is reported to furnish various peroxycarbonyls and 1,3-haloperoxygenated compounds in good to excellent yields.
Kuldeep Singh, Tishyasoumya Bera, Vandana Jaiswal, Subrata Biswas, Biplab Mondal, Dinabandhu Das, Jaideep Saha   +6 more
semanticscholar   +1 more source

Cyclopropan

AINS - Anästhesiologie · Intensivmedizin · Notfallmedizin · Schmerztherapie, 1995
H, Böhrer, M, Goerig
openaire   +2 more sources

Asymmetric Catalytic Reactions of Donor–Acceptor Cyclopropanes

Angewandte Chemie - International Edition, 2021
Xiaohua Liu, Feng, Xiaoming, Yong Xia
exaly