scholarly journals Activating molecular oxygen with Au/CeO2 for the conversion of lignin model compounds and organosolv lignin

RSC Advances ◽  
2019 ◽  
Vol 9 (53) ◽  
pp. 31070-31077
Author(s):  
Wu-Lin Song ◽  
Qingmeng Dong ◽  
Liang Hong ◽  
Zhou-Qi Tian ◽  
Li-Na Tang ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Methyl Alcohol ◽  
High Efficiency ◽  
Model Compounds ◽  
Strong Base ◽  
Lignin Model Compounds ◽  
Organosolv Lignin ◽  
Lignin Model

Au/CeO2 was demonstrated to be a high efficiency catalyst for the conversion of 2-phenoxyacetophenol (PP-ol) employing O2 as an oxidant and methyl alcohol as the solvent without using an erosive strong base or acid.

Self-hydrogen transfer hydrogenolysis of β-O-4 linkages in lignin catalyzed by MIL-100(Fe) supported Pd–Ni BMNPs

2017 ◽  
Vol 19 (19) ◽  
pp. 4538-4543 ◽  
Author(s):  
Jia-wei Zhang ◽  
Guo-ping Lu ◽  
Chun Cai
Keyword(s):  
Hydrogen Transfer ◽  
Catalytic Performance ◽  
Model Compounds ◽  
Lignin Model Compounds ◽  
Organosolv Lignin ◽  
Lignin Model ◽  
Intramolecular Transfer ◽  
Supported Pd

A MIL-100(Fe) supported Pd–Ni BMNP catalyst has been fabricated, and the catalyst exhibits superior catalytic performance toward intramolecular transfer hydrogenolysis of lignin model compounds and organosolv lignin.

Free radical reaction promoted by ionic liquid: a route for metal-free oxidation depolymerization of lignin model compound and lignin

2015 ◽  
Vol 51 (19) ◽  
pp. 4028-4031 ◽  
Author(s):  
Yingying Yang ◽  
Honglei Fan ◽  
Jinliang Song ◽  
Qinglei Meng ◽  
Huacong Zhou ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Model Compound ◽  
Radical Reaction ◽  
Free Radical Reaction ◽  
Model Compounds ◽  
Lignin Model Compounds ◽  
Lignin Model Compound ◽  
Organosolv Lignin ◽  
Lignin Model ◽  
Free Oxidation

Ionic liquid can efficiently promote the transformation of lignin model compounds and organosolv lignin.

scholarly journals Base promoted hydrogenolysis of lignin model compounds and organosolv lignin over metal catalysts in water

2015 ◽  
Vol 123 ◽  
pp. 155-163 ◽  
Author(s):  
Hannelore Konnerth ◽  
Jiaguang Zhang ◽  
Ding Ma ◽  
Martin H.G. Prechtl ◽  
Ning Yan
Keyword(s):  
Metal Catalysts ◽  
Model Compounds ◽  
Lignin Model Compounds ◽  
Organosolv Lignin ◽  
Lignin Model

Covalent triazine framework catalytic oxidative cleavage of lignin models and organosolv lignin

2018 ◽  
Vol 20 (6) ◽  
pp. 1270-1279 ◽  
Author(s):  
Li Zhao ◽  
Song Shi ◽  
Meng Liu ◽  
Guozhi Zhu ◽  
Min Wang ◽  
...  
Keyword(s):  
Oxidative Cleavage ◽  
Model Compounds ◽  
Lignin Model Compounds ◽  
Metal Free ◽  
Organosolv Lignin ◽  
Lignin Model ◽  
Covalent Triazine Framework

CTFs were used as effective metal-free catalysts for the oxidative cleavage of lignin model compounds and organosolv lignin.

Visible light-enabled selective depolymerization of oxidized lignin by an organic photocatalyst

2020 ◽  
Vol 56 (76) ◽  
pp. 11243-11246
Author(s):  
Shuyuan Li ◽  
Zhongkai Hao ◽  
Kaixuan Wang ◽  
Min Tong ◽  
Yanan Yang ◽  
...  
Keyword(s):  
Visible Light ◽  
Continuous Flow ◽  
Flow Reactor ◽  
Perylene Diimide ◽  
Model Compounds ◽  
Lignin Model Compounds ◽  
Efficient Strategy ◽  
Continuous Flow Reactor ◽  
Organosolv Lignin ◽  
Lignin Model

A novel and efficient strategy for the selective depolymerization of lignin model compounds and organosolv lignin via a visible-light-induced photocatalytic continuous-flow reactor was first developed by using perylene diimide (PDI) as a organocatalyst.

Microwave-assisted fast conversion of lignin model compounds and organosolv lignin over methyltrioxorhenium in ionic liquids

RSC Advances ◽  
2015 ◽  
Vol 5 (103) ◽  
pp. 84967-84973 ◽  
Author(s):  
Bo Zhang ◽  
Changzhi Li ◽  
Tao Dai ◽  
George W. Huber ◽  
Aiqin Wang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Microwave Irradiation ◽  
Reducing Agent ◽  
Model Compounds ◽  
Lignin Model Compounds ◽  
Microwave Assisted ◽  
Organosolv Lignin ◽  
Lignin Model

Fast depolymerization of β-O-4 model compounds and organosolv lignin to aromatic chemicals over methyltrioxorhenium in ionic liquids without oxidant/reducing agent under microwave irradiation is developed.

Lignin to Value-Added Chemical Synthesis

2020 ◽  
Vol 16 ◽  
Author(s):  
Mahdieh Sharifi ◽  
Ramyakrishna Pothu ◽  
Rajender Boddula ◽  
Inamuddin
Keyword(s):  
Ionic Liquids ◽  
Lignocellulosic Biomass ◽  
Academic Research ◽  
Power Saving ◽  
Value Added ◽  
Glycerol Ether ◽  
Model Compounds ◽  
Lignin Model Compounds ◽  
Biomass Activity ◽  
Lignin Model

Background: There is a developing demand for innovation in petroleum systems replacements. Towards this aim, lignocellulosic biomass suggested as a possible sustainable source for the manufacturing of fuels and produced chemicals. The aims of this paper are to investigate different kinds of β-O-4 lignin model compounds for the production of value-added chemicals in presence of ionic liquids. Especially, a cheap β-O-4 lignin model Guaiacol glycerol ether (GGE) (Guaifenesin) is introduced to produce valuable chemicals and novel products. Methods: Research related to chemical depolymerization of lignocellulosic biomass activity is reviewed, the notes from different methods such as thermal and microwave collected during at least 10 years. So, this collection provides a good source for academic research and it gives an efficient strategy for the manufacturing of novel value-added chemicals at an industrial scale. Results: This research presented that ionic liquid microwave-assisted is a power saving, cost efficient, fast reaction, and clean way with high selectively and purity for production of high value chemicals rather that conversional heating. Guaiacol and catechol are some of these valuable chemicals that is produced from β-O-4 lignin model compounds with high word demands that are capable to produce in industry scale. Conclusion: The β-O-4 lignin model compounds such as Guaiacol glycerol ether (GGE) (Guaifenesin) are good platform for developing food materials, perfumery, biorefinery, and pharmaceutical industry by ionic liquids-assisted lignin depolymerization method.

Insights into the electrochemical degradation of phenolic lignin model compounds in protic ionic liquid-water system

2021 ◽  
Author(s):  
Guangyong Liu ◽  
Qian Wang ◽  
Dongxia Yan ◽  
Yaqin Zhang ◽  
Chenlu Wang ◽  
...  
Keyword(s):  
Water System ◽  
Value Added ◽  
Electrochemical Degradation ◽  
Aryl Ether ◽  
Model Compounds ◽  
Protic Ionic Liquid ◽  
Lignin Model Compounds ◽  
Mild Conditions ◽  
System P ◽  
Lignin Model

Cleavage of aryl ether (Caryl-O) bonds is crucial for conversion and value-added utilization of lignin and its derivatives, but remains extremely challenging under mild conditions due to strong Caryl-O linkages....

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