Articles with "alkene" as a keyword



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Metabolomics-based profiling of three terminal alkene-producing Jeotgalicoccus spp. during different growth phase.

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Published in 2019 at "Journal of bioscience and bioengineering"

DOI: 10.1016/j.jbiosc.2018.06.014

Abstract: Production of terminal alkenes by microbes has gained importance due to its role as a chemical feedstock in commercial industries. Jeotgalicoccus species has been widely unexplored despite being well-known as a natural producer of terminal… read more here.

Keywords: phase; production; terminal alkene; jeotgalicoccus ... See more keywords
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Towards enantiopure macrocyclic trans-dinucleating hemilabile P-Alkene ligands: Syntheses, structures, and Chiral Pd-Complexes

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Published in 2019 at "Journal of Organometallic Chemistry"

DOI: 10.1016/j.jorganchem.2019.120876

Abstract: Abstract Dibenzazepinyl dichlorophosphine 2 reacts with (R,R)-2,3-O-isopropylidene-threitol (3) in Et2O solution to afford gram-quantities of the enantiopure macrocylic phosphoramidite (all-R)-6, which may be seen as a formal dimer of classic phosphoramidite P-alkene hybrid ligands. Complexation… read more here.

Keywords: dinucleating hemilabile; towards enantiopure; trans dinucleating; macrocyclic trans ... See more keywords
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η2-Alkene Complexes of [Rh(PONOP-iPr)(L)]+ Cations (L = COD, NBD, Ethene). Intramolecular Alkene-Assisted Hydrogenation and Dihydrogen Complex [Rh(PONOP-iPr)(η-H2)]+

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Published in 2021 at "Inorganic Chemistry"

DOI: 10.1021/acs.inorgchem.0c03687

Abstract: Rhodium-alkene complexes of the pincer ligand κ3-C5H3N-2,6-(OPiPr2)2 (PONOP-iPr) have been prepared and structurally characterized: [Rh(PONOP-iPr)(η2-alkene)][BArF4] [alkene = cyclooctadiene (COD), norbornadiene (NBD), ethene; ArF = 3,5-(CF3)2C6H3]. Only one of these, alkene = COD, undergoes a reaction… read more here.

Keywords: dihydrogen complex; ethene; alkene; ponop ipr ... See more keywords
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Bisbiphenyl Phosphines: Structure and Synthesis of Gold(I) Alkene π-Complexes with Variable Phosphine Donicity and Enhanced Stability

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Published in 2020 at "Organometallics"

DOI: 10.1021/acs.organomet.0c00278

Abstract: This paper describes the synthesis and characterization of RP­(o-biphenyl)2 phosphine ligands (where R = PhO, Ph, and t-Bu), corresponding gold­(I) chloride precatalysts, gold­(I) triflate catalysts, and gold­(I) π-complexes. All ligands and gold chlorides and three… read more here.

Keywords: biphenyl; phosphine donicity; gold; stability ... See more keywords
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Macrolactam Synthesis via Ring-Closing Alkene-Alkene Cross-Coupling Reactions.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c03801

Abstract: Reported herein is a practical method for macrolactam synthesis via a Rh(III)-catalyzed ring closing alkene-alkene cross-coupling reaction. The reaction proceeded via a Rh-catalyzed alkenyl sp2 C-H activation process, which allows access to macrocyclic molecules of… read more here.

Keywords: alkene alkene; macrolactam synthesis; closing alkene; synthesis via ... See more keywords
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Copper-Catalyzed Difluoroalkylation of Alkene/Nitrile Insertion/Cyclization Tandem Sequences: Construction of Difluorinated Bicyclic Amidines.

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Published in 2021 at "Organic letters"

DOI: 10.1021/acs.orglett.1c03802

Abstract: A copper-catalyzed difluoroalkylation of an alkene/nitrile insertion/cyclization tandem sequence of N-cyanamide alkene was described, which provided a convenient synthetic approach for accessing difluorinated bicyclic amidines bearing imine moieties in a sustainable fashion. This protocol is… read more here.

Keywords: alkene; copper catalyzed; catalyzed difluoroalkylation; alkene nitrile ... See more keywords
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Fluorogenic protein labeling using a genetically encoded unstrained alkene† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c6sc03635j Click here for additional data file.

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Published in 2017 at "Chemical Science"

DOI: 10.1039/c6sc03635j

Abstract: A new fluorogenic bioorthogonal reaction between styrene (an unstrained alkene) and a tetrazine was developed. read more here.

Keywords: protein labeling; labeling using; fluorogenic protein; unstrained alkene ... See more keywords
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14-Electron Rh and Ir silylphosphine complexes and their catalytic activity in alkene functionalization with hydrosilanes.

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Published in 2021 at "Dalton transactions"

DOI: 10.1039/d1dt00677k

Abstract: Herein we report an experimental and computational study of a family of four coordinated 14-electron complexes of Rh(iii) devoid of agostic interactions. The complexes [X-Rh(κ3(P,Si,Si)PhP(o-C6H4CH2SiiPr2)2], where X = Cl (Rh-1), Br (Rh-2), I (Rh-3), OTf… read more here.

Keywords: silylphosphine complexes; electron silylphosphine; complexes catalytic; catalytic activity ... See more keywords
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Visible-light-mediated β-acylative divergent alkene difunctionalization with Katritzky salt/CO2

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Published in 2023 at "Green Chemistry"

DOI: 10.1039/d3gc00143a

Abstract: Multicomponent cross-coupling reactions involving alkene under visible-light photoredox catalysis have tremendous potential to achieve molecular complexity and modularity from renewable feedstocks in sustainable manner. Here we disclose, two similar yet... read more here.

Keywords: light mediated; divergent alkene; visible light; acylative divergent ... See more keywords
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Efficient and environmentally-friendly access to 4,5-unsaturated sulfonamides through a ligand-free copper-BF3-catalyzed three-component alkene carbo-sulfonamidation

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Published in 2023 at "Organic Chemistry Frontiers"

DOI: 10.1039/d3qo00268c

Abstract: Though sulfonamides are biologically important molecules, the scope of their structures is narrow due to the limited methods available for synthesis. Alkene functionalization has recently gained attention for synthesis of... read more here.

Keywords: efficient environmentally; environmentally friendly; access unsaturated; unsaturated sulfonamides ... See more keywords
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Ruthenium-Catalyzed Intermolecular Alkene-Alkyne Couplings in Biologically Relevant Media

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Published in 2023 at "Chemical Science"

DOI: 10.1039/d3sc01254a

Abstract: Cationic cyclopentadienyl Ru(II) catalysts can efficiently promote mild intermolecular alkyne-alkene couplings in aqueous media, even in the presence of different biomolecular components, and in complex media like DMEM. The method... read more here.

Keywords: alkene alkyne; ruthenium catalyzed; catalyzed intermolecular; alkyne couplings ... See more keywords