Efficient Transfer Hydrogenation of Alkyl Levulinates and Levulinic Acid to γ‑Valerolactone Over Mesoporous Reduced Cuo Catalyst

2021 ◽  
Author(s):  
Neda Ayashi ◽  
Alireza Najafi Chermahini ◽  
Nasim Amiri Ramsheh ◽  
Rafael Luque
Keyword(s):  
Levulinic Acid ◽  
Transfer Hydrogenation ◽  
Alkyl Levulinates ◽  
Efficient Transfer

Efficient Transfer Hydrogenation of Levulinic Acid (LA) to γ-Valerolactone (GVL) over Ni/NiO-MC (MC=Mesoporous Carbon)

2021 ◽  
Author(s):  
Xinyu Liu ◽  
Zhaohui Li
Keyword(s):  
Ion Exchange ◽  
Mesoporous Carbon ◽  
Levulinic Acid ◽  
Exchange Process ◽  
Transfer Hydrogenation ◽  
Nio Nanoparticles ◽  
Ion Exchange Process ◽  
Polymer Framework ◽  
Efficient Transfer

Ni/NiO-MC (MC=Mesoporous carbon), in which Ni and NiO nanoparticles well distributed on MC, has been successfully synthesized by a pyrolysis of Ni/mesostructured polymer framework precursor prepared via an ion-exchange process...

Efficient transfer hydrogenation of biomass derived furfural and levulinic acid via magnetic zirconium nanoparticles: Experimental and kinetic study

2020 ◽  
Vol 145 ◽  
pp. 112133 ◽  
Author(s):  
Jing Gu ◽  
Jun Zhang ◽  
Yazhuo Wang ◽  
Denian Li ◽  
Hongyu Huang ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Levulinic Acid ◽  
Transfer Hydrogenation ◽  
Efficient Transfer

Transfer hydrogenation of biomass-derived levulinic acid to γ-valerolactone over supported Ni catalysts

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 59753-59761 ◽  
Author(s):  
A. M. Hengne ◽  
B. S. Kadu ◽  
N. S. Biradar ◽  
R. C. Chikate ◽  
C. V. Rode
Keyword(s):  
Levulinic Acid ◽  
Transfer Hydrogenation ◽  
Complete Conversion ◽  
Catalytic Transfer Hydrogenation ◽  
Ni Catalysts ◽  
Catalytic Transfer ◽  
Supported Ni Catalysts ◽  
Supported Ni

A bifunctional Ni/MMT catalyst for catalytic transfer hydrogenation of levulinic acid to γ-valerolactone with complete conversion and selectivity.

Efficient transfer hydrogenation of nitro compounds over a magnetic palladium catalyst

2016 ◽  
Vol 41 (48) ◽  
pp. 22983-22990 ◽  
Author(s):  
Liang Jiang ◽  
Zehui Zhang
Keyword(s):  
Palladium Catalyst ◽  
Nitro Compounds ◽  
Transfer Hydrogenation ◽  
Efficient Transfer

Ultra-high Loading Single CoN3 Sites in N-doped Graphene-like Carbon for Efficient Transfer Hydrogenation of Nitroaromatics

2021 ◽  
Author(s):  
Fengwei Zhang ◽  
Jingjing Li ◽  
Peizhi Liu ◽  
Huan Li ◽  
Shuai Chen ◽  
...  
Keyword(s):  
Transfer Hydrogenation ◽  
High Loading ◽  
Doped Graphene ◽  
Efficient Transfer

scholarly journals Improved Catalytic Transfer Hydrogenation of Levulinate Esters with Alcohols over ZrO2 Catalyst

2020 ◽  
Vol 2 (1) ◽  
pp. 28
Author(s):  
Tommaso Tabanelli ◽  
Paola Blair Vásquez ◽  
Emilia Paone ◽  
Rosario Pietropaolo ◽  
Nikolaos Dimitratos ◽  
...  
Keyword(s):  
Gas Flow ◽  
Agricultural Waste ◽  
High Surface ◽  
High Surface Area ◽  
Tetragonal Zirconia ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
Flow Conditions ◽  
Catalytic Transfer ◽  
Alkyl Levulinates

Levulinic acid (LA) and its esters (alkyl levulinates) are polyfunctional molecules that can be obtained from lignocellulosic biomass. Herein, the catalytic conversion of methyl and ethyl levulinates into γ-valerolactone (GVL) via catalytic transfer hydrogenation (CTH) by using methanol, ethanol, and 2-propanol as the H-donor/solvent, was investigated under both batch and gas-flow conditions. In particular, high-surface-area, tetragonal zirconia has proven to be a suitable catalyst for this reaction. Isopropanol was found to be the best H-donor under batch conditions, with ethyl levulinate providing the highest yield in GVL. However, long reaction times and high autogenic pressures are needed in order to work in the liquid-phase at high temperature with light alcohols. The reactions occurring under continuous gas-flow conditions, at atmospheric pressure and a relatively low contact time (1 s), were found to be much more efficient, also showing excellent GVL yields when EtOH was used as the reducing agent (GVL yield of around 70% under optimized conditions). The reaction has also been tested using a true bio-ethanol, derived from agricultural waste. These results represent the very first examples of the CTH of alkyl levulinates under continuous gas-flow conditions reported in the literature.

scholarly journals A practical and highly efficient transfer hydrogenation of aryl azides using a [Ru(p-cymene)Cl2]2 catalyst and sodium borohydride

2018 ◽  
Vol 21 (9) ◽  
pp. 880-883 ◽  
Author(s):  
Benan Kilbas ◽  
Yunus Emre Yilmaz ◽  
Sinem Ergen
Keyword(s):  
Sodium Borohydride ◽  
Transfer Hydrogenation ◽  
Aryl Azides ◽  
Highly Efficient ◽  
Efficient Transfer

Efficient and Scalable Production of Alkyl Levulinates from Cellulose-Derived Levulinic Acid Using Heteropolyacid Catalysts

2019 ◽  
Vol 4 (8) ◽  
pp. 2501-2504 ◽  
Author(s):  
Sharath Bandibairanahalli Onkarappa ◽  
Manjunath Javoor ◽  
Sib Sankar Mal ◽  
Saikat Dutta
Keyword(s):  
Levulinic Acid ◽  
Alkyl Levulinates ◽  
Scalable Production

Transfer hydrogenation of alkynes into alkenes by ammonia borane over Pd-MOF catalysts

2020 ◽  
Vol 49 (16) ◽  
pp. 5024-5028 ◽  
Author(s):  
Vasudeva Rao Bakuru ◽  
Debabrata Samanta ◽  
Tapas Kumar Maji ◽  
Suresh Babu Kalidindi
Keyword(s):  
Ammonia Borane ◽  
Transfer Hydrogenation ◽  
Selective Transformation ◽  
Protic Solvents ◽  
Efficient Transfer

Ammonia borane with both hydridic and protic hydrogens in its structure acted as an efficient transfer hydrogenation agent for selective transformation of alkynes into alkenes in non-protic solvents.

Catalytic conversions of isocyanate to urea and glucose to levulinate esters over mesoporous α-Ti(HPO4)2·H2O in green media

2020 ◽  
Vol 44 (38) ◽  
pp. 16452-16460
Author(s):  
Arpita Hazra Chowdhury ◽  
Ipsita Hazra Chowdhury ◽  
Surajit Biswas ◽  
Pekham Chakrabortty ◽  
Sk. Manirul Islam
Keyword(s):  
Heterogeneous Catalysis ◽  
Solvothermal Synthesis ◽  
Levulinic Acid ◽  
Fine Chemicals ◽  
Alkyl Levulinates

We have described a facile solvothermal synthesis of sheet-like α-Ti(HPO4)2·H2O nanomaterial and its application in heterogeneous catalysis to synthesize fine chemicals like urea, levulinic acid and alkyl levulinates.

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