Results 21 to 30 of about 62,467 (179)
Chemistry Proceedings, 2022 The data obtained by the authors in the field of chemistry of substituted borolanes and 2,3-dihydro-1H-boroles are summarized. The authors developed a selective method for the synthesis of five-membered boracarbocycles via transmetalation of ...
Liliya I. Tulyabaeva +2 more
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Effect of polarity and steric on the rate addition of free radicals to Alkenes [PDF]
Kirkuk Journal of Science, 2009 In this investigation, the effective factors on the addition rate for hydroxy methyl and cynomethyl free radicals to some alkenes have been studied using quantum mechanics methods. Where in this study, physical properties like the electron density on the
Najla.J. Khalil, Mostafa.R. Aeyd
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Direct C–H trifluoromethylation of di- and trisubstituted alkenes by photoredox catalysis
Beilstein Journal of Organic Chemistry, 2014 Background: Trifluoromethylated alkene scaffolds are known as useful structural motifs in pharmaceuticals and agrochemicals as well as functional organic materials.
Ren Tomita +3 more
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Allylic C‒H Alkylation of Internal and Terminal Alkenes with Alkenes by Rare-Earth Catalysts [PDF]
Allylic C−H functionalization of simple alkenes presents a step-economical route to access functionalized alkenes. However, current approaches are generally focused on the transformation of α-alkenes, the conversion of internal alkenes was challenging ...
Tao, Mao +6 more
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Synthesis of Binary Ti-Si Mixed Oxides Nanoparticles with Rutile Structure as Selective Catalyst for Epoxidation of Alkenes [PDF]
Journal of Sciences, Islamic Republic of Iran, 2007 The nanoparticles of Ti-Si mixed oxides (NTSO) with Rutile structure were prepared by sol-gel method in a mixture of alcohol and water as solvent. The solid product was characterized by XRD, FTIR, SEM, TEM, UV, TGA and laser Raman spectroscopy.
F. Farzaneh
doaj
Anomeric Amide‐Enabled Alkene‐Arene and Alkene‐Alkene Aminative Coupling
Angewandte Chemie International EditionAbstractDespite the prominence of C−N bond forming cross‐coupling reactions as a strategy to assemble molecular fragments, aminative coupling approaches, in which two fragments are assembled directly at the heteroatom, represents a rarely exploited retrosynthetic strategy. Herein, we report the design, synthesis, and implementation of an anomeric amide
Colin Stein +5 more
openaire +2 more sources
, 2018 Density functional theory calculations were performed to investigate the iridium-catalyzed isomerization of 1-alkenes to trans-2-alkenes. The computations show that the originally proposed π-allyl mechanism is kinetically unfeasible.
Lingfei Hu +5 more
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Catalytic Enantioselective Addition of Organozirconium Reagents to Aldehydes
Molecules, 2018 A catalytic enantioselective addition reaction of alkylzirconium species to aromatic aldehydes is reported. The reaction, facilitated by a chiral nonracemic diol ligand complex with Ti(OiPr)4, proceeds under mild and convenient conditions, and no premade
Ricard Solà +5 more
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Chemistry of novel fluorinated alkenes [PDF]
, 1986 The work described in this thesis is concerned with three areas relating to nueleophilic reactions of novel-polyfluorinated alkenes-. a) Very highly strained fluorinated epoxides have been synthesised from bicyclic internal alkenes using Ca(OCl)(_2 ...
Bayliff, Andrew E.
core
Enantioselective Mercuriocyclization of γ-Hydroxy-cis-alkenes
, 2016 Asymmetric mercuriocyclization of γ-hydroxy-(Z)-alkenes has been achieved using Hg(II) complexed with tartrate-derived 4-(2-naphthyl)bisoxazoline as chiral ligand to give rise to 2-monosubstituted tetrahydrofurans in 86−95% ee.
Sung Ho Kang (2230765) +1 more
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