Catalytic conversion of biomass-derived levulinic acid into alcohols over nanoporous Ru catalyst

2018 ◽  
Vol 8 (4) ◽  
pp. 975-979 ◽  
Author(s):  
Jinkun Lv ◽  
Zeming Rong ◽  
Liming Sun ◽  
Chengyun Liu ◽  
An-Hui Lu ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
High Selectivity ◽  
Catalytic Conversion ◽  
Monohydric Alcohol ◽  
Ru Catalyst ◽  
Mild Conditions

1,4-pentanediol or monohydric alcohol were achieved with high selectivity from levulinic acid under relatively mild conditions using nanoporous Ru.

scholarly journals Chemoselective hydrogenation of heteroarenes and arenes by Pd–Ru–PVP under mild conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44191-44195
Author(s):  
Chandan Chaudhari ◽  
Katsutoshi Sato ◽  
Yoshihide Nishida ◽  
Tomokazu Yamamoto ◽  
Takaaki Toriyama ◽  
...  
Keyword(s):  
Ru Catalyst ◽  
Mild Conditions ◽  
Chemoselective Hydrogenation

Recyclable Pd0.5Ru0.5–PVP catalyst showed higher activity than monometallic Pd or Ru catalyst for the hydrogenation of quinoline. Furthermore, Pd0.5Ru0.5–PVP was able to hydrogenate different arenes.

Eco-Friendly Synthesis of Sulphonic Acid Oxime Esters Catalyzed by 2-(1H-Benzotriazole-1-yl)-1,1,3,3-Tetramethyluronium Tetrafluoroborate

2014 ◽  
Vol 525 ◽  
pp. 93-96
Author(s):  
Wei Shi ◽  
Ji Ming Zhang ◽  
Jian Hua Zhou ◽  
Jian Hua Zhou ◽  
Song Song Ding
Keyword(s):  
High Selectivity ◽  
Sulphonic Acid ◽  
Present Approach ◽  
High Yield ◽  
Facile Synthesis ◽  
Reaction Duration ◽  
Mild Conditions ◽  
Environmental Friendly

Herein we describle a facile synthesis of sulphonic acid oxime esters in acetonitrile from the corresponding sulphonic acids and oximes catalyzed by the environmental friendly 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (TBTU) in the presence of triethylamine (TEA) under mild conditions. The present approach offers the advantages of a clean reaction, simple methodology, employing readily available catalyst, short reaction duration, high selectivity and high yield.

Highly Selective Oxidation of Cinnamaldehyde to Benzaldehyde by Hydrogen Peroxide in Mild Conditions

2014 ◽  
Vol 522-524 ◽  
pp. 458-464
Author(s):  
Yuan Mei Nie ◽  
Yong Peng An ◽  
Cai Hua Peng ◽  
Xing Dong Yao
Keyword(s):  
Hydrogen Peroxide ◽  
Hydrogen Bond ◽  
Sodium Bicarbonate ◽  
Propylene Glycol ◽  
Selective Oxidation ◽  
High Selectivity ◽  
Protic Solvent ◽  
Hydrogen Bond Interaction ◽  
Mild Conditions ◽  
Effect Of Solvent

Benzaldehyde was produced from oxidation of cinnamaldehyde by hydrogen peroxide in propylene glycol in the presence of sodium bicarbonate. Protic solvent demonstrated high selectivity and the yield of benzaldehyde could reach up to 82% in propylene glycol. The effect of solvent on the selectivity was attributed to hydrogen bond interaction between the oxidation intermediate epoxide and the solvent.

scholarly journals Continuous Flow Synthesis of High Valuable N-Heterocycles via Catalytic Conversion of Levulinic Acid

2019 ◽  
Vol 7 ◽  
Author(s):  
Daily Rodríguez-Padrón ◽  
Alain R. Puente-Santiago ◽  
Alina M. Balu ◽  
Mario J. Muñoz-Batista ◽  
Rafael Luque
Keyword(s):  
Continuous Flow ◽  
Levulinic Acid ◽  
Catalytic Conversion ◽  
Flow Synthesis

scholarly journals Catalytic Production of Levulinic Acid (LA) from Actual Biomass

Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2760 ◽  
Author(s):  
Michela Signoretto ◽  
Somayeh Taghavi ◽  
Elena Ghedini ◽  
Federica Menegazzo
Keyword(s):  
Green Chemistry ◽  
Levulinic Acid ◽  
Complex Structure ◽  
Reaction System ◽  
Catalytic Conversion ◽  
Crucial Issue ◽  
Recent Approach ◽  
Different Types ◽  
Pros And Cons ◽  
The Impact

Catalytic conversion of actual biomass to valuable chemicals is a crucial issue in green chemistry. This review discusses on the recent approach in the levulinic acid (LA) formation from three prominent generations of biomasses. Our paper highlights the impact of the nature of different types of biomass and their complex structure and impurities, different groups of catalyst, solvents, and reaction system, and condition and all related pros and cons for this process.

Catalytic Conversion of Levulinic Acid to γ-Valerolactone over Hierarchical AlPO4-5 Supported Nickel Catalysts

2019 ◽  
Vol 93 (13) ◽  
pp. 2620-2627
Author(s):  
Yanyan Xu ◽  
Tianliang Lu ◽  
Ningning Bu ◽  
Qianqian Luo ◽  
Yashi Qing ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Catalytic Conversion ◽  
Nickel Catalysts ◽  
Supported Nickel Catalysts

Catalytic conversion of ferrous carbonate to higher hydrocarbons under mild conditions and its application in transformation of CO2 to liquid fuels

2020 ◽  
Vol 4 (1) ◽  
pp. 96-100 ◽  
Author(s):  
Yulv Yu ◽  
Jin Huang ◽  
Yuan Wang
Keyword(s):  
Catalytic Conversion ◽  
Liquid Fuels ◽  
Mild Conditions ◽  
Higher Hydrocarbons ◽  
Ferrous Carbonate ◽  
Long Chain

Coupling conversion of CO32− to hydrocarbons with carbonation of ferrous species by CO2 leads to the generation of long-chain hydrocarbons.

One-pot catalytic conversion of microalgae (Chlorococcum sp.) into 5-hydroxymethylfurfural over the commercial H-ZSM-5 zeolite

2016 ◽  
Vol 18 (2) ◽  
pp. 452-460 ◽  
Author(s):  
J. J. Wang ◽  
Z. C. Tan ◽  
C. C. Zhu ◽  
G. Miao ◽  
L. Z. Kong ◽  
...  
Keyword(s):  
Catalytic Conversion ◽  
Experimental Results ◽  
High Yield ◽  
One Pot ◽  
Mild Conditions ◽  
Zeolite P

A high yield of HMF is directly obtained from aquatic microalgae over a commercial acidic zeolite under mild conditions. Experimental results reveal that proteins and lipids in microalgal cells benefit the HMF stability in water.

scholarly journals Biomimetic and bioinspired molecular electrets. How to make them and why does the established peptide chemistry not always work?

2020 ◽  
Vol 92 (2) ◽  
pp. 275-299 ◽  
Author(s):  
Kamil Skonieczny ◽  
Eli M. Espinoza ◽  
James B. Derr ◽  
Maryann Morales ◽  
Jillian M. Clinton ◽  
...  
Keyword(s):  
High Selectivity ◽  
Science And Engineering ◽  
Peptide Chemistry ◽  
Nitrobenzoic Acid ◽  
Biological Inspiration ◽  
Mild Conditions ◽  
Amide Coupling ◽  
Synthetic Polypeptides ◽  
Electric Dipoles ◽  
Nitro Reduction

Abstract“Biomimetic” and “bioinspired” define different aspects of the impacts that biology exerts on science and engineering. Biomimicking improves the understanding of how living systems work, and builds tools for bioinspired endeavors. Biological inspiration takes ideas from biology and implements them in unorthodox manners, exceeding what nature offers. Molecular electrets, i.e. systems with ordered electric dipoles, are key for advancing charge-transfer (CT) science and engineering. Protein helices and their biomimetic analogues, based on synthetic polypeptides, are the best-known molecular electrets. The inability of native polypeptide backbones to efficiently mediate long-range CT, however, limits their utility. Bioinspired molecular electrets based on anthranilamides can overcome the limitations of their biological and biomimetic counterparts. Polypeptide helices are easy to synthesize using established automated protocols. These protocols, however, fail to produce even short anthranilamide oligomers. For making anthranilamides, the residues are introduced as their nitrobenzoic-acid derivatives, and the oligomers are built from their C- to their N-termini via amide-coupling and nitro-reduction steps. The stringent requirements for these reduction and coupling steps pose non-trivial challenges, such as high selectivity, quantitative yields, and fast completion under mild conditions. Addressing these challenges will provide access to bioinspired molecular electrets essential for organic electronics and energy conversion.

Towards the sustainable production of pyridines via thermo-catalytic conversion of glycerol with ammonia over zeolite catalysts

2015 ◽  
Vol 17 (4) ◽  
pp. 2426-2435 ◽  
Author(s):  
Lujiang Xu ◽  
Zheng Han ◽  
Qian Yao ◽  
Jin Deng ◽  
Ying Zhang ◽  
...  
Keyword(s):  
High Selectivity ◽  
Catalytic Conversion ◽  
Sustainable Production ◽  
Zeolite Catalysts ◽  
High Yield

Thermo-catalytic conversion of renewable glycerol with ammonia over HZSM-5 for producing pyridines with high yield and high selectivity.

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