Copper-based catalysts with tunable acidic and basic sites for the selective conversion of levulinic acid/ester to γ-valerolactone or 1,4-pentanediol

2019 ◽  
Vol 21 (16) ◽  
pp. 4499-4511 ◽  
Author(s):  
Yuewen Shao ◽  
Kai Sun ◽  
Qingyin Li ◽  
Qianhe Liu ◽  
Shu Zhang ◽  
...  
Keyword(s):  
Acid Ester ◽  
Levulinic Acid ◽  
Basic Sites ◽  
Selective Conversion

Selective conversion of levulinic acid/ester to γ-valerolactone or 1,4-pentanediol was achieved over copper-based catalysts with tunable acidic and basic sites.

Balanced distribution of Brønsted acidic sites and Lewis acidic sites for highly selective conversion of xylose into levulinic acid/ester over Zr-beta catalysts

2019 ◽  
Vol 21 (24) ◽  
pp. 6634-6645 ◽  
Author(s):  
Yuewen Shao ◽  
Kai Sun ◽  
Lijun Zhang ◽  
Qing Xu ◽  
Zhanming Zhang ◽  
...  
Keyword(s):  
Acid Ester ◽  
Levulinic Acid ◽  
Selective Conversion ◽  
Balanced Distribution ◽  
Lewis Acidic Sites ◽  
Acidic Sites

Highly selective conversion of xylose into levulinic acid/ester was achieved over the Zr-beta catalyst with balanced distribution of acidic sites.

Selective conversion of furfuryl alcohol to levulinic acid by SO3H-containing silica nanoflower in GVL/H2O system

2021 ◽  
Vol 171 ◽  
pp. 124-132
Author(s):  
Ruoqing Wang ◽  
Feng Shen ◽  
Yiwei Tang ◽  
Haixin Guo ◽  
Richard Lee Smith ◽  
...  
Keyword(s):  
Furfuryl Alcohol ◽  
Levulinic Acid ◽  
Selective Conversion

scholarly journals One-pot conversion of biomass-derived xylose and furfural into levulinate esters via acid catalysis

2017 ◽  
Vol 53 (20) ◽  
pp. 2938-2941 ◽  
Author(s):  
Xun Hu ◽  
Shengjuan Jiang ◽  
Liping Wu ◽  
Shuai Wang ◽  
Chun-Zhu Li
Keyword(s):  
Acid Ester ◽  
Levulinic Acid ◽  
Acid Catalysis ◽  
Value Added ◽  
One Pot ◽  
Platform Chemicals

Via acid catalysis in dimethoxymethane/methanol, both C5 sugars and C6 sugars, derived from hemicellulose and cellulose, could be simultaneously converted into levulinic acid/ester, the platform chemicals for manufacturing value-added chemicals and biofuels.

scholarly journals Unexpected chloro-functionalized ionic liquids-promoted selective conversion of cellulose into levulinic acid

BioResources ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. 9155-9165
Author(s):  
Hao Ma ◽  
Yanhui Qiao ◽  
Junjiang Teng
Keyword(s):  
Ionic Liquids ◽  
Formic Acid ◽  
Levulinic Acid ◽  
Imidazolium Chloride ◽  
Cellulose Conversion ◽  
Selective Conversion

A series of chloro-functionalized ionic liquids (CFILs) with chlorine groups (–Cl) on cations and chloride anions (Cl-) were synthesized and used as the promotion reagents for the selective conversion of cellulose into levulinic acid (LA) with the co-product of formic acid (FA). The co-operation between cations and anions of CFILs was investigated intensively through the variation of the structure of cations and the addition of salts with different anions. 3-(3-chloropropyl)-1-methyl-imidazolium chloride (IL-3) was the most appropriate additive, achieving up to 4.2%, 52.6%, and 58.7% of glucose, LA, and FA yields at 83.5% of cellulose conversion, respectively.

Selective conversion of cellulose to levulinic acid and furfural in sulfolane/water solvent

Cellulose ◽  
2017 ◽  
Vol 24 (3) ◽  
pp. 1383-1394 ◽  
Author(s):  
Kui Wang ◽  
Jun Ye ◽  
Minghao Zhou ◽  
Peng Liu ◽  
Xinyu Liang ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Selective Conversion ◽  
Water Solvent

Intensified levulinic acid/ester production from cassava by one-pot cascade prehydrolysis and delignification

2017 ◽  
Vol 204 ◽  
pp. 1094-1100 ◽  
Author(s):  
Weijie Zhao ◽  
Yingwen Li ◽  
Changhua Song ◽  
Sijie Liu ◽  
Xuehui Li ◽  
...  
Keyword(s):  
Acid Ester ◽  
Levulinic Acid ◽  
One Pot

Straightforward Synthesis of Levulinic Acid Ester from Lignocellulosic Biomass Resources

2014 ◽  
Vol 43 (8) ◽  
pp. 1327-1329 ◽  
Author(s):  
Koji Nemoto ◽  
Ken-ichi Tominaga ◽  
Kazuhiko Sato
Keyword(s):  
Lignocellulosic Biomass ◽  
Acid Ester ◽  
Levulinic Acid ◽  
Biomass Resources
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