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   Articles with "carboxylation" as a keyword



Heterogeneous Catalytic Materials for Carbon dioxide Transformation: Efficient Carboxylation Cyclization to Cyclic Carbonates and Oxazolidinones

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recommendations! Published in 2024 at "Asian Journal of Organic Chemistry"

DOI: 10.1002/ajoc.202400492

Abstract: The exacerbation of environmental issues is increasingly attributed to the anthropogenic emissions of carbon dioxide (CO2) . CO2 is a cost‐effective and readily available C1 source. The conversion of CO2 into value‐added organic chemicals, such… read more here.

Keywords: carbon dioxide; co2; carboxylation cyclization; carboxylation ... See more keywords

Improving nitrogen content in the carboxylation and electron transfer component can boost the reproductive biomass of filmless cotton in arid areas

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recommendations! Published in 2024 at "Crop Science"

DOI: 10.1002/csc2.21225

Abstract: Deep drip irrigation combined with high‐density planting is one of the most economical and effective ways to address residual film pollution. This study aimed to explore the photosynthetic potential of and achieve water‐saving and high‐yielding… read more here.

Keywords: rate; nitrogen; nitrogen content; carboxylation ... See more keywords
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Photochemical Carboxylation of Activated C(sp3 )-H Bonds with CO2.

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recommendations! Published in 2017 at "ChemSusChem"

DOI: 10.1002/cssc.201700205

Abstract: From ugly duckling to beautiful C1: Although CO2 may represent an ideal C1 source, it is challenging to use it as a raw material and direct carboxylation with CO2 has mainly been confined to highly… read more here.

Keywords: bonds co2; photochemical carboxylation; sp3 bonds; activated sp3 ... See more keywords

Visible-Light-Enabled Carboxylation of Benzyl Alcohol Derivatives with CO2 Using a Palladium/Iridium Dual Catalyst.

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recommendations! Published in 2022 at "ChemSusChem"

DOI: 10.1002/cssc.202200021

Abstract: Invited for this month's cover is the group of Nobuharu Iwasawa at Tokyo Institute of Technology. The image shows a switchable site-selective carboxylation between benzylic C-O and aryl C-Cl moieties enabled by a palladium/iridium dual… read more here.

Keywords: carboxylation; palladium iridium; dual catalyst; visible light ... See more keywords

Copper(0) Nanoparticles Supported on Al2O3 as Catalyst for Carboxylation of Terminal Alkynes

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recommendations! Published in 2017 at "Catalysis Letters"

DOI: 10.1007/s10562-017-2127-0

Abstract: The copper particles, supported on Al2O3 were for the first time used as heterogeneous, highly active, easily available, and recyclable copper catalyst of direct carboxylation of various terminal alkynes with CO2 (2 bar) in the presence… read more here.

Keywords: supported al2o3; terminal alkynes; copper nanoparticles; catalyst ... See more keywords

Sequential protocol for C(sp)–H carboxylation with CO2: KOtBu-catalyzed C(sp)–H silylation and KOtBu-mediated carboxylation

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recommendations! Published in 2018 at "Science China Chemistry"

DOI: 10.1007/s11426-017-9163-2

Abstract: CO2 incorporation into C–H bonds is an important and interesting topic. Herein a sequential protocol for C(sp)–H carboxylation by employing a metal-free C–H activation/catalytic silylation reaction in conjunction with KOtBu-mediated carboxylation with CO2 was established,… read more here.

Keywords: silylation; kotbu; co2; protocol carboxylation ... See more keywords

Transition metal-free carboxylation of terminal alkynes with carbon dioxide through dual activation: Synthesis of propiolic acids

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recommendations! Published in 2019 at "Journal of CO2 Utilization"

DOI: 10.1016/j.jcou.2019.04.011

Abstract: Abstract The combination use of quaternary ammonium salt and inorganic base in low-boiling-point solvent is presented as a new strategy for terminal alkyne carboxylation with CO2. The carboxylation of terminal alkyne with CO2 proceeded smoothly… read more here.

Keywords: transition metal; dual activation; carboxylation; carboxylation terminal ... See more keywords

Valorization of C5 polyols by direct carboxylation to FDCA: Synthesis and characterization of a key intermediate and role of carbon dioxide

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recommendations! Published in 2019 at "Journal of CO2 Utilization"

DOI: 10.1016/j.jcou.2019.04.013

Abstract: Abstract Replacing fossil-C based plastics with those derived from renewable-C is one of the goals of the modern polymer industry. 2,5-Furan dicarboxylic acid (2,5-FDCA) is a candidate to substitute terephthalic acid as comonomer for polyesters.… read more here.

Keywords: role; direct carboxylation; valorization polyols; carboxylation ... See more keywords

Recent Advances in Electrochemical Carboxylation with CO2.

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recommendations! Published in 2024 at "Accounts of chemical research"

DOI: 10.1021/acs.accounts.4c00417

Abstract: ConspectusCarbon dioxide (CO2) is recognized as a greenhouse gas and a common waste product. Simultaneously, it serves as an advantageous and commercially available C1 building block to generate valuable chemicals. Particularly, carboxylation with CO2 is… read more here.

Keywords: carboxylation co2; co2; electrochemical carboxylation; recent advances ... See more keywords

Ligand-Promoted Nickel-Catalyzed para-Selective Carboxylation of Anisoles.

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recommendations! Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c00417

Abstract: It has always been a challenge in free radical chemistry to control site selectivity during the reaction of free radicals with aromatic rings. Herein, we report the site-selective carboxylation of anisoles through the direct reaction… read more here.

Keywords: selective carboxylation; carboxylation; ligand promoted; para selective ... See more keywords

Electrochemical Deaminative Carboxylation of Aryltriazenes with CO2 to Aryl Carboxylic Acids.

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recommendations! Published in 2025 at "Organic letters"

DOI: 10.1021/acs.orglett.5c01099

Abstract: The utilization of CO2 as an appealing chemical feedstock for diverse synthetically valuable products is constantly evolving, potentially alleviating chemical production that relies on petrochemistry. Herein we report the first example of the electrochemical deaminative… read more here.

Keywords: aryltriazenes co2; electrochemical deaminative; carboxylation; carboxylic acids ... See more keywords