The 55thBürgenstock Conference under the Banner of Sustainability** DOI
Agnieszka Nowak‐Król, Paweł Dydio

Angewandte Chemie, Journal Year: 2022, Volume and Issue: 134(52)

Published: Dec. 7, 2022

Language: Английский

Synergy Effect of Acid Radical Anchors and Active Sites Protection in Co‐Based Spinel Catalyst for Efficient Amine Solution Regeneration During CO2 Capture DOI Open Access

Xinling Zhong,

Weixin Kong,

Kexuan Yang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract Solid acid catalysts (SACs) have attracted significant attention for their role in enhancing the carbon capture desorption process, primarily due to active sites. By employing a synergistic strategy involving anchoring and structural design, both catalytic activity durability of catalyst throughout process are optimized. The TiO 2 shell layer Mn CoO 4 @TiO /SO 2− (MC@TiO /S) effectively inhibits leaching species into solution, thereby enabling sustained high over ten cycles absorption–desorption testing. protonated groups (SO ) facilitates novel pathway proton transfer solution via proton‐coupled electron (PCET) effect, significantly reducing activation energy this step reaction kinetics. Consequently, CO regeneration capacity rate increase by 103% 111%, respectively, while consumption during decreases ≈44%. Additionally, environmental performance is evaluated using life cycle assessment (LCA), highlighting its sustainable potential future scale‐up applications. This study presents viable metal oxide solid materials facilitate efficient low‐energy solvent processes.

Language: Английский

Citations

0

The Aldol Reaction: Group XIV Enolates DOI
Yasuhiro Yamashita, Masaharu Ueno, Taku Kitanosono

et al.

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0

A chronicle of organic synthesis in water: A trajectory of growth in the intervening quarter century DOI
Taku Kitanosono, Yasuhiro Yamashita, Shu̅ Kobayashi

et al.

Tetrahedron, Journal Year: 2023, Volume and Issue: 143, P. 133474 - 133474

Published: July 11, 2023

Language: Английский

Citations

6

Nanoscale and chiral metal–organic frameworks for asymmetric reactions in water: bridging Lewis acid catalysis and biological systems DOI Creative Commons
Watchara Srimontree, Taku Kitanosono, Yasuhiro Yamashita

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(24), P. 9120 - 9126

Published: Jan. 1, 2024

A new chiral UiO-type MOF with scandium tris(dodecyl sulfate) showed superior catalytic performance to the usual micellar catalysis in presence of proteins, demonstrating ability prevent active Lewis acid sites from mortiferous deactivation.

Language: Английский

Citations

2

Selective hydrolysis of α-oxo ketene N,S-acetals in water: switchable aqueous synthesis of β-keto thioesters and β-keto amides DOI Creative Commons
Haifeng Yu, Wanting Zhang, Xuejing Cui

et al.

Beilstein Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 20, P. 2225 - 2233

Published: Sept. 3, 2024

An eco-friendly selective hydrolysis of chain α-oxo ketene N , S -acetals in water for the switchable synthesis β-keto thioesters and amides is reported. In refluxing water, reactions presence 1.0 equiv dodecylbenzenesulfonic acid effectively afforded excellent yield, while were successfully obtained yield when carried out 3.0 NaOH. The green approach to avoids use harmful organic solvents, thiols thiolacetates as well amines, which could result serious environmental safety issues.

Language: Английский

Citations

1

Impact of Ligand Design on an Iron NHC Epoxidation Catalyst DOI Creative Commons
Tim P. Schlachta, Greta G. Zámbó,

Michael J. Sauer

et al.

ChemistryOpen, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 24, 2024

Abstract An open‐chain iron pyridine‐NHC framework is expanded utilizing a benzimidazole moiety to deepen the understanding of impact electronic variations on NHC epoxidation catalysts, especially regarding stability. The thereby newly obtained iron(II) complex characterized and employed in olefin epoxidation. It remarkably temperature tolerant achieves TOF ca. 10 000 h −1 TON 700 at 60 °C presence Lewis acid Sc(OTf) 3 , displaying equal stability, but lower activity than unmodified (pre‐)catalyst. In addition, synthetic approach towards another ligand containing 2‐imidazoline units described formylation as well hydrolysis hamper its successful synthesis.

Language: Английский

Citations

1

One‐Pot Synthesis of Chiral 1‐Aryl‐2‐Aminoethanols via Ir‐Catalyzed Asymmetric Hydrogenation DOI
Lei Zhang, Liming Cao, Maolin Sun

et al.

Chemistry - A European Journal, Journal Year: 2023, Volume and Issue: 29(29)

Published: March 11, 2023

A straightforward synthesis approach to chiral 1-aryl-2-aminoethanols via the one-pot asymmetric hydrogenation catalyzed by Ir catalyst was developed. This tandem process involves in situ generation of α-amino ketones nucleophilic substitution α-bromoketones with amines and Ir-catalyzed ketone intermediates provide diverse enantiomerically enriched β-amino alcohols. The excellent yields enantioselectivities (up 96 % yield up >99 ee) a wide substrate scope this strategy were obtained.

Language: Английский

Citations

2

The trading of space for time under weakly activated catalysis: expeditious synthesis of β-NH2alcoholsviaa direct ammonolysis of epoxides with ammonia DOI

Guolan Ma,

Chang Xu,

Shaoxiong Yang

et al.

Green Chemistry, Journal Year: 2022, Volume and Issue: 25(2), P. 720 - 727

Published: Dec. 16, 2022

The direct synthesis of β-NH 2 alcohols via flexible ammonolysis epoxides is still a challenging and unresolved problem.

Language: Английский

Citations

3

Recent Developments in Enantioselective Scandium-Catalyzed Transformations DOI Creative Commons

Hélène Pellissier

Chemistry, Journal Year: 2024, Volume and Issue: 6(1), P. 98 - 152

Published: Jan. 11, 2024

This review collects the recent developments in field of enantioselective scandium-catalyzed transformations published since beginning 2016, illustrating power chiral scandium catalysts to promote all types reactions.

Language: Английский

Citations

0

Small-Molecule-Based Strategy for Mitigating Deactivation of Chiral Lewis Acid Catalysis DOI

Fangqiu Lu,

Taku Kitanosono, Yasuhiro Yamashita

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(33), P. 22918 - 22922

Published: Aug. 6, 2024

Chiral Lewis acid catalysts are widely used in organic synthesis due to their diverse applications. However, high acidity makes them susceptible deactivation by basic reagents and water. Here, we present a novel strategy for mitigating this using small molecules. By incorporating weakly coordinating anions into the secondary coordination sphere of metal center, designed highly reusable chiral complex. This complex exhibits excellent thermal stability allows use electron-poor nucleophiles reactions. Spectroscopic titration studies confirmed robustness optimized work provides valuable insights overcoming limitations acids environments, expanding potential chemical synthesis.

Language: Английский

Citations

0