A continuous process for glyoxal valorisation using tailored Lewis-acid zeolite catalysts
文献情報
Pierre Y. Dapsens, Cecilia Mondelli, Bright T. Kusema, René Verel, Javier Pérez-Ramírez
The aqueous-phase heterogeneously catalysed isomerisation of bio-oil derived glyoxal is herein introduced as a novel route for the sustainable production of glycolic acid. While commercial ultra-stable Y zeolites displayed only moderate performance, their evaluation enabled us to highlight the crucial role of Lewis acidity in the reaction. Gallium incorporation into these zeolites boosted the glycolic acid yield, although the best catalytic results were obtained over tin-containing MFI-type zeolites, reaching 91% yield of the desired product at full conversion. These materials comprised hydrothermally-synthesised Sn-MFI as well as a novel catalyst obtained by the introduction of tin into silicalite-1 by means of a simpler and more scalable method, i.e. alkaline-assisted metallation. In-depth spectroscopic characterisation of these systems uncovered a substantial similarity of the tin centres obtained by the top-down and bottom-up synthetic approaches. NMR spectroscopic studies gave evidence that the reaction follows a 1,2-hydride shift mechanism solely catalysed by Lewis-acid sites. The Sn-MFI analogue could be reused in 5 cycles without the need for intermediate calcination, did not evidence any tin leaching, and demonstrated suitability for utilisation under continuous-flow operation. The tin-based zeolites exhibited remarkable performance also in alcoholic solvents, leading to the one-pot production of relevant alkyl glycolates.
関連文献
Unravelling the mechanisms of reactive oxygen species formation in nanohybrid systems of porphyrins and enriched (6,5) single-walled carbon nanotubes for photosensitization
Camila S. Monteiro, Daniele C. Ferreira, Gustavo A. M. Sáfar, Rafael N. Gontijo, Cristiano Fantini, Dayse C. S. Martins, Ynara M. Idemori, Maurício V. B. Pinheiro, Klaus Krambrock
DOI: 10.1039/C6CP03366K
Electrical impedance spectroscopy of a PET chip sandwiched between two disk electrodes: understanding the contribution of the polymer/electrode interface
L. Chaal, V. Vivier, B. Tribollet, J. Gamby
DOI: 10.1039/C6CP03042D
Near infrared absorbing near infrared emitting highly-sensitive luminescent nanothermometer based on Nd3+ to Yb3+ energy transfer
Ł. Marciniak, A. Bednarkiewicz, M. Stefanski, R. Tomala, D. Hreniak, W. Strek
DOI: 10.1039/C5CP03861H
Carbon and proton Overhauser DNP from MD simulations and ab initio calculations: TEMPOL in acetone
Sami Emre Küçük, Timur Biktagirov, Deniz Sezer
DOI: 10.1039/C5CP04405G
Ion segregation in an ionic liquid confined within chitosan based chemical ionogels
A. Guyomard-Lack, N. Buchtová, B. Humbert, J. Le Bideau
DOI: 10.1039/C5CP04198H
Thermoelectric performance enhancement of Mg2Sn based solid solutions by band convergence and phonon scattering via Pb and Si/Ge substitution for Sn
Binghui Ge, Qing Jie, Udara Saparamadu, Weishu Liu, Zhifeng Ren
DOI: 10.1039/C6CP03944H
Thermodynamic and redox properties of graphene oxides for lithium-ion battery applications: a first principles density functional theory modeling approach
Ki Chul Kim
DOI: 10.1039/C6CP02692C
On the fractality of the Freundlich adsorption isotherm in equilibrium and non-equilibrium cases
Przemysław Borys, Zbigniew J. Grzywna
DOI: 10.1039/C6CP03356C
Interaction of l-alanyl-l-valine and l-valyl-l-alanine with organic vapors: thermal stability of clathrates, sorption capacity and the change in the morphology of dipeptide films
Marat A. Ziganshin, Nadezhda S. Gubina, Alexander V. Gerasimov, Valery V. Gorbatchuk, Sufia A. Ziganshina, Anton P. Chuklanov, Anastas A. Bukharaev
DOI: 10.1039/C5CP03309H
Aqueous biphasic systems composed of ionic liquids and polypropylene glycol: insights into their liquid–liquid demixing mechanisms
Catarina M. S. S. Neves, Jesus Lemus, Jorge F. B. Pereira, Mara G. Freire, João A. P. Coutinho
DOI: 10.1039/C6CP04023C
こちらもおすすめ
4-アミノフェノール酸ナトリウム水和物とは何ですか?
4-アミノフェノール酸ナトリウム水和物は、CAS番号206557-08-6の化合物で、4-アミノフェノールとナトリウムが結合した塩と水和物です。この化合物は、白...
Methyl 3-methyl-N-{[(2-methyl-2-propanyl)oxy]carbonyl}-L-histidinateの代替品はありますか?
この化合物は特定の合成プロセスに使用される可能性がありますが、代替品として、他の类似的な化合物、例えばMethyl 3-methyl-N-{[(2-methyl...
4-Boc-2-哌嗪甲酸の市場動向や研究トレンドはどうですか?
4-Boc-2-哌嗪甲酸は、薬品開発や合成化学分野で広く使用されており、その需要は継続的に推移しています。特に、新薬開発における合成化学分野での需要が高まってい...
4,4'-二羟甲基联苯の物理化学的性質は何ですか?
4,4'-二羟甲基联苯のCAS番号は1667-12-5です。この化合物は白色の結晶粉末で、分子量は154.20です。水にわずかに溶けますが、アルコールや有機溶媒...
5-甲硫基戊腈はどの業界で使用されていますか?
5-甲硫基戊腈は医薬品産業で使用される可能性があります。また、ポリマー合成の触媒として、センサー製造の一部として、半導体製造のプロセス改善に使用される可能性があ...
CAS番号1311961-50-8の化合物はどのように合成されますか?
この化合物は、1-abieta-8,11,13-trien-19-イルと6'-メトキシシンコナナン-9-基を含有する窒素含有化合物から合成されます。一般的な合成...
6-ブロモベンジジミダゾール-2-カルビルデオキシドはどのように保存すればよいですか?
6-ブロモベンジジミダゾール-2-カルビルデオキシドは、避光・乾燥した容器(密閉容器)で-20℃~4℃の低温で保存してください。高温や直射日光、湿気は避けてくだ...
Boc-N-甲基氨甲环酸とは何ですか?
621-65-8のCAS番号を持つBoc-N-甲基氨甲环酸は、化学式C7H13NO5を有する化合物です。この化合物は白色の結晶性粉末で、吸湿性があります。
乙基三氟硼酸钾はどのように合成されますか?
乙基三氟硼酸钾は、トリフLUオール酸カリウムとエチルブロミドを反応させて合成されます。この反応は高い選択性と収率を持ち、触媒を用いることで効率的に進行します。
2-フロウロ-5-クロロ-4-アミノフェノールはどのように保存すればよいですか?
2-フロウロ-5-クロロ-4-アミノフェノールは、直射日光を避けて冷却された暗所で保存し、密閉容器に保管してください。温度は常温か低温が適しています。
掲載誌
Green Chemistry

Green Chemistry provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on, but not limited to, the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998). Green chemistry is the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry is at the frontiers of this continuously-evolving interdisciplinary science and publishes research that attempts to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. Submissions on all aspects of research relating to the endeavour are welcome. The journal publishes original and significant cutting-edge research that is likely to be of wide general appeal. To be published, work must present a significant advance in green chemistry. Papers must contain a comparison with existing methods and demonstrate advantages over those methods before publication can be considered. For more information please see this Editorial. Coverage includes the following, but is not limited to: Design (e.g. biomimicry, design for degradation/recycling/reduced toxicity…) Reagents & Feedstocks (e.g. renewables, CO2, solvents, auxiliary agents, waste utilization…) Synthesis (e.g. organic, inorganic, synthetic biology…) Catalysis (e.g. homogeneous, heterogeneous, enzyme, whole cell…) Process (e.g. process design, intensification, separations, recycling, efficiency…) Energy (e.g. renewable energy, fuels, photovoltaics, fuel cells, energy storage, energy carriers…) Applications (e.g. electronics, dyes, consumer products, coatings, pharmaceuticals, preservatives, building materials, chemicals for industry/agriculture/mining…) Impact (e.g. safety, metrics, LCA, sustainability, (eco)toxicology…) Green chemistry is, by definition, a continuously-evolving frontier. Therefore, the inclusion of a particular material or technology does not, of itself, guarantee that a paper is suitable for the journal. To be suitable, the novel advance should have the potential for reduced environmental impact relative to the state of the art. Green Chemistry does not normally deal with research associated with 'end-of-pipe' or remediation issues.










![6,7-Dihydro-5H-pyrrolo[1,2-a]imidazole-6-carboxylic acid structure 6,7-Dihydro-5H-pyrrolo[1,2-a]imidazole-6-carboxylic acid structure](https://static.chemtradehub.com/structs/136/1369160-12-2-6524.webp)



![Methyl 3-({2'-[(E)-(hydroxyhydrazono)methyl]-4-biphenylyl}methyl)-2-oxo-2,3-dihydro-1H-benzimidazole-4-carboxylate structure Methyl 3-({2'-[(E)-(hydroxyhydrazono)methyl]-4-biphenylyl}methyl)-2-oxo-2,3-dihydro-1H-benzimidazole-4-carboxylate structure](https://static.chemtradehub.com/structs/149/1499167-72-4-034a.webp)