scholarly journals Erratum: Corrigendum: High-throughput screening of metal-porphyrin-like graphenes for selective capture of carbon dioxide

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Hyeonhu Bae ◽  
Minwoo Park ◽  
Byungryul Jang ◽  
Yura Kang ◽  
Jinwoo Park ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Throughput ◽  
High Throughput Screening ◽  
Metal Porphyrin

scholarly journals Redox-neutral Photocatalytic C-H Carboxylation of Arenes and Styrenes with CO2

2020 ◽  
Author(s):  
Matthias Schmalzbauer ◽  
Thomas D. Svejstrup ◽  
Florian Fricke ◽  
Peter Brandt ◽  
Magnus J. Johansson ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Organic Synthesis ◽  
High Throughput ◽  
Electron Affinity ◽  
Aromatic Compounds ◽  
High Throughput Screening ◽  
Computational Analysis ◽  
High Energy ◽  
Radical Anions ◽  
Light Excitation

Carbon dioxide (CO<sub>2</sub>) is an attractive one-carbon (C1) building block in terms of sustainability and abundance. However, its low reactivity limits applications in organic synthesis as typically high-energy reagents are required to drive transformations. Here, we present a redox-neutral C−H carboxylation of arenes and styrenes using a photocatalytic approach. Upon blue-light excitation, the anthrolate anion photocatalyst is able to reduce many aromatic compounds to their corresponding radical anions, which react with CO<sub>2</sub> to afford carboxylic acids. High-throughput screening and computational analysis suggest that a correct balance between electron affinity and nucleophilicity of substrates is essential. This novel methodology enables the carboxylation of numerous aromatic compounds, including many that are not tolerated in classical carboxylation chemistry. Over 50 examples of C−H functionalizations using CO<sub>2</sub> or ketones illustrate a broad applicability. The method opens new opportunities for late-stage C−H carboxylation and valorization of common arenes.

scholarly journals Redox-neutral Photocatalytic C-H Carboxylation of Arenes and Styrenes with CO2

2020 ◽  
Author(s):  
Matthias Schmalzbauer ◽  
Thomas D. Svejstrup ◽  
Florian Fricke ◽  
Peter Brandt ◽  
Magnus J. Johansson ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Organic Synthesis ◽  
High Throughput ◽  
Electron Affinity ◽  
Aromatic Compounds ◽  
High Throughput Screening ◽  
Computational Analysis ◽  
High Energy ◽  
Radical Anions ◽  
Light Excitation

Carbon dioxide (CO<sub>2</sub>) is an attractive one-carbon (C1) building block in terms of sustainability and abundance. However, its low reactivity limits applications in organic synthesis as typically high-energy reagents are required to drive transformations. Here, we present a redox-neutral C−H carboxylation of arenes and styrenes using a photocatalytic approach. Upon blue-light excitation, the anthrolate anion photocatalyst is able to reduce many aromatic compounds to their corresponding radical anions, which react with CO<sub>2</sub> to afford carboxylic acids. High-throughput screening and computational analysis suggest that a correct balance between electron affinity and nucleophilicity of substrates is essential. This novel methodology enables the carboxylation of numerous aromatic compounds, including many that are not tolerated in classical carboxylation chemistry. Over 50 examples of C−H functionalizations using CO<sub>2</sub> or ketones illustrate a broad applicability. The method opens new opportunities for late-stage C−H carboxylation and valorization of common arenes.

scholarly journals High-throughput screening of metal-porphyrin-like graphenes for selective capture of carbon dioxide

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Hyeonhu Bae ◽  
Minwoo Park ◽  
Byungryul Jang ◽  
Yura Kang ◽  
Jinwoo Park ◽  
...  
Keyword(s):  
Transition Metal Complexes ◽  
High Throughput ◽  
First Principles ◽  
High Throughput Screening ◽  
Flue Gases ◽  
Metal Porphyrin ◽  
Gaseous Mixtures ◽  
Metal Organic ◽  
Low Pressures ◽  
Capture Capacity

Abstract Nanostructured materials, such as zeolites and metal-organic frameworks, have been considered to capture CO2. However, their application has been limited largely because they exhibit poor selectivity for flue gases and low capture capacity under low pressures. We perform a high-throughput screening for selective CO2 capture from flue gases by using first principles thermodynamics. We find that elements with empty d orbitals selectively attract CO2 from gaseous mixtures under low CO2 pressures (~10 −3 bar) at 300 K and release it at ~450 K. CO2 binding to elements involves hybridization of the metal d orbitals with the CO2 π orbitals and CO2-transition metal complexes were observed in experiments. This result allows us to perform high-throughput screening to discover novel promising CO2 capture materials with empty d orbitals (e.g., Sc– or V–porphyrin-like graphene) and predict their capture performance under various conditions. Moreover, these findings provide physical insights into selective CO2 capture and open a new path to explore CO2 capture materials.

High-throughput screening program for botanical extracts

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
L Hingorani ◽  
NP Seeram ◽  
B Ebersole
Keyword(s):  
High Throughput ◽  
High Throughput Screening ◽  
Screening Program ◽  
Botanical Extracts

High throughput screening of microbial biodiversity for the discovery of novel cosmeceutical agents

Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
K Georgousaki ◽  
N DePedro ◽  
AM Chinchilla ◽  
N Aliagiannis ◽  
F Vicente ◽  
...  
Keyword(s):  
High Throughput ◽  
High Throughput Screening ◽  
Microbial Biodiversity

High throughput screening to investigate Brazilian Cerrado biome plant extract bank chemical diversity

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
LS Espindola ◽  
RG Dusi ◽  
KR Gustafson ◽  
J McMahon ◽  
JA Beutler
Keyword(s):  
High Throughput ◽  
Plant Extract ◽  
High Throughput Screening ◽  
Chemical Diversity ◽  
Brazilian Cerrado ◽  
Cerrado Biome

High-throughput screening revealed a clinically relevant drug to induce sperm motility

2014 ◽  
Author(s):  
Clair Cochrane ◽  
Halil Ruso ◽  
Anthony Hope ◽  
Rosemary G Clarke ◽  
Christopher Barratt ◽  
...  
Keyword(s):  
Sperm Motility ◽  
High Throughput ◽  
High Throughput Screening
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