Results 41 to 50 of about 19,839 (247)
IUCrData, 2016 In the racemic title compound, C14H16O3, the dihedral angle formed by the mean planes of the cyclopropane and benzene rings is 5.0 (2)°. In the crystal, a pair of weak C—H...O hydrogen bonds connect two molecules related by a twofold rotation axis, thus ...
Alan J. Lough +2 more
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Synthesis of a novel chemotype via sequential metal-catalyzed cycloisomerizations
Beilstein Journal of Organic Chemistry, 2012 Sequential cycloisomerizations of diynyl o-benzaldehyde substrates to access novel polycyclic cyclopropanes are reported. The reaction sequence involves initial Cu(I)-mediated cycloisomerization/nucleophilic addition to an isochromene followed by ...
Bo Leng +4 more
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Redox‐Modulated σ‐Bond Reactivity in a Radical‐Anion Dimer
Angewandte Chemie International Edition, Volume 65, Issue 44, 26 October 2026.A radialene‐based radical anion σ‐dimer comprising an elongated C‐C bond exhibits orthogonal stimuli responsiveness. Homolytic cleavage of the dimer to the radical state is triggered by mechanical strain and high temperature. Dimer scission is also achieved via oxidation, resulting in formation of neutral radialenes.
Sushil Ranjan Bhatta +8 more
wiley +2 more sources
ChemistryEuropeA chiral N‐9‐Anth‐PyBidine‐Co(OAc)2 complex catalyzed the kinetically controlled asymmetric Michael/alkylation reaction of 3‐chlorooxindoles with alkylidenemalononitriles to give gem‐dicyano‐spirocyclopropyl oxindoles in a highly diastereo‐ and ...
Takaaki Saito +4 more
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Journal of Lipid Research, 1974 Many anaerobic bacteria have a high proportion of 1-alk-1′-enyl ethers (plasmalogens) among their phospholipids. We have examined the effects of growth temperature on the phospholipid, fatty acid, and alk-1-enyl group compositions of Clostridium ...
G.K. Khuller, Howard Goldfine
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, 2011 (Dicyclopropylmethylene)cyclopropane underwent efficient Bronsted acid catalyzed hydrations and hydroaminations with H2O and basic amines, respectively, occurring with conservation of all three cyclopropane rings.Fonds der Chemischen Industrie; EPSRC ...
Dmitry Yufit +7 more
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Angewandte Chemie, EarlyView.Ein Biosynthese‐Gencluster aus Streptomyces sp. YIM 121038 wurde untersucht, wobei die Produktion des Sesterterpens Tibonen A und seines Oxidationsprodukts Tibonon nachgewiesen wurde. Der Cyclisierungsmechanismus zu Tibonen A wurde mittels Isotopenmarkierungsexperimenten, DFT‐Berechnungen und Eingriffen in die Enzym‐Substrat‐Wechselwirkung durch ...
Min Wang +6 more
wiley +1 more source
Organophotocatalyst Enabled Deoxycyclopropanation of Alcohols
Advanced ScienceCyclopropane fragments, which widely exist in marketed drugs and natural products, can confer special pharmacological properties to small‐molecule drugs. Therefore, developing methods to construct cyclopropanes is of great significance. Nevertheless, the
Yongsheng Zhang +7 more
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Electrochemistry CommunicationsCyclopropanated and polycyclopropanated hydrocarbons are attractive high-energy-density fuel candidates for aviation and maritime applications, but scalable routes from renewable feedstocks remain limited. Kolbe electrosynthesis could address this gap by
Hanlin Lin, Robert John Patterson
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The Search for Biologically Active Compounds in the Series of N-ethoxyethylpiperidine Derivatives
Eurasian Chemico-Technological Journal, 2019 With the aim to introduce fragment of cyclopropane and fragments of p-, m-, o-fluorophenyls into the structures of N-ethoxyethylpiperidines, acylation of oxime and phenylacetylenic alcohol of 1-(2-ethoxyethyl)-4-ketopiperidine by ...
U. B. Issayeva +5 more
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