Results 1 to 10 of about 3,323 (237)
Comparative Nitrene-Transfer Chemistry to Olefins Mediated by First-Row Transition Metal Catalysts Supported by a Pyridinophane Macrocycle with N4 Ligation [PDF]
MoleculesA 12-membered pyridinophane scaffold containing two pyridine and two tertiary amine residues is examined as a prototype ligand (tBuN4) for supporting nitrene transfer to olefins.
Himanshu Bhatia +6 more
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Ligand-controlled regiodivergent and enantioselective hydrophosphorylation of styrenes by palladium [PDF]
Nature CommunicationsAsymmetric hydrophosphorylation of unsaturated compounds is a straightforward and atom-economic approach to obtain chiral organophosphorus compounds.
Chun Ma +4 more
doaj +2 more sources
Silver‐Catalyzed Decarboxylative Coupling of Oxamic Acids with Styrenes to Synthesize E‐Cinnamamides: A Distinguish Reaction Pathway [PDF]
ChemistryOpenA silver‐catalyzed decarboxylative coupling of oxamic acids with styrenes has been developed to produce E‐cinnamamides. Oxamic acids act as efficient precursors for carbamoy radicals.
Ru‐Han A +2 more
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A three-step, one-pot strategy to unsymmetrical 1,1-diarylalkenes [PDF]
BMC Research NotesObjective Develop a one-pot, three-step procedure for effective access to diverse unsymmetrical 1,1-diarylalkenes from readily accessible reagents, catalysts and substrates.
Vijayaragavan Elumalai +5 more
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Atropisomerism in Styrene: Synthesis, Stability, and Applications
SynOpen, 2021 Atropisomeric styrenes are a class of optically active compounds, the chirality of which results from restricted rotation of the C(vinyl)–C(aryl) single bond.
Jia Feng, Zhenhua Gu
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Frustrated Lewis pair catalyzed C–F activation of α-trifluoromethylstyrenes
Tetrahedron Chem, 2023 A frustrated Lewis pair approach is used for the monoselective C–F activation of α-trifluoromethyl styrenes. Selective C–F activation of α-trifluoromethyl styrenes with trispentafluorophenylborane (BCF) in partnership with tri(ortho-tolyl)phosphine or 2 ...
Chakyu Richard Chan +2 more
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Olefin–Styrene Copolymers [PDF]
Polymers, 2016 In this review are reported some of the most relevant achievements in the chemistry of the ethylene–styrene copolymerization and in the characterization of the copolymer materials. Focus is put on the relationship between the structure of the catalyst and that of the obtained copolymer.
GALDI, NUNZIA +2 more
openaire +2 more sources
Molecules, 2023 A simple and straightforward addition or defluorination of α-(trifluoromethyl)styrenes with 2-nitroimino-imidazolidine (2a), 2-(nitromethylene)imidazolidine (2b), 2-cyanoimino-thiazolidine (2c), and (E)-1-methyl-2-nitroguanidine (2d), in a controlled ...
Jingjing He +5 more
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Nature Communications, 2023 The precise and efficient construction of axially chiral scaffolds, particularly toward the aryl-alkene atropoisomers with impeccably full enantiocontrol and highly structural diversity, remains greatly challenging. Herein, we disclose an organocatalytic
Fengyuan Guo +4 more
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Carbene-catalyzed atroposelective synthesis of axially chiral styrenes
Nature Communications, 2022 Axially chiral styrenes bearing a chiral axis between a sterically non-congested acyclic alkene and an aryl ring are difficult to prepare due to low rotational barrier of the axis. Here the authors present a method to form axially chiral styrenes bearing
Jia-Lei Yan +8 more
doaj +1 more source