Photocatalytic Oxidation of Lignin Model Systems by Merging Visible-Light Photoredox and Palladium Catalysis.
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TL;DR: A catalytic protocol for oxidation of lignin model systems by combining photoredox and Pd catalysis is described, which allowed the efficient oxidation ofLigninmodel substrates at room temperature to afford the oxidized products in good to excellent yields.
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About: This article is published in Organic Letters. The article was published on 23 Sep 2016. and is currently open access.
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Citations
Photocatalytic transformations of lignocellulosic biomass into chemicals
TL;DR: A critical review on recent advances in the photocatalytic transformation of lignocellulosic biomass with an emphasis on photoc atalytic cleavage of C-O and C-C bonds in major components of lIGNocellusic biomass, including polysaccharides and lignin, and the photocAtalytic valorisation of some key platform molecules is presented.
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Photons or Electrons? A Critical Comparison of Electrochemistry and Photoredox Catalysis for Organic Synthesis.
TL;DR: In this paper, the authors highlight the differences and similarities between electrochemistry and photoredox catalysis by comparing their underlying physical chemistry principles and describing their impact on electrochemical and photochemical methods.
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Redox Catalysis Facilitates Lignin Depolymerization
TL;DR: An operationally simple procedure for selective fragmentation of β-O-4 bonds with excellent mass recovery is developed, which provides a unique opportunity to expand the existing lignin usage from energy source to commodity chemicals and synthetic building block source.
258
Catalytic oxidation of lignin to valuable biomass-based platform chemicals: A review
TL;DR: A comprehensive review on traditional and advanced lignin oxidation concerning various catalytic systems for different terminal products is provided in this article, which indicates the direction of further Lignin oxidative valorization.
252
Photocatalytic Cleavage of C–C Bond in Lignin Models under Visible Light on Mesoporous Graphitic Carbon Nitride through π–π Stacking Interaction
Huifang Liu,Huifang Liu,Hongji Li,Hongji Li,Jianmin Lu,Shu Zeng,Shu Zeng,Min Wang,Nengchao Luo,Nengchao Luo,Shutao Xu,Feng Wang +11 more
TL;DR: In this paper, a mild photocatalytic oxidative strategy for C-C bond cleavage of lignin β-O-4 and β-1 linkages using a mesoporous graphitic carbon nitride catalyst was reported.
244
References
Visible Light Photoredox Catalysis with Transition Metal Complexes: Applications in Organic Synthesis
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Visible light photoredox catalysis: applications in organic synthesis
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Lignin valorization: improving lignin processing in the biorefinery.
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TL;DR: Recent developments in genetic engineering, enhanced extraction methods, and a deeper understanding of the structure of lignin are yielding promising opportunities for efficient conversion of this renewable resource to carbon fibers, polymers, commodity chemicals, and fuels.
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Solar Synthesis: Prospects in Visible Light Photocatalysis
TL;DR: A variety of reaction types have now been shown to be amenable to visible light photocatalysis via photoinduced electron transfer to or from the transition metal chromophore, as well as energy-transfer processes.
Paving the Way for Lignin Valorisation: Recent Advances in Bioengineering, Biorefining and Catalysis.
Roberto Rinaldi,Robin Jastrzebski,Matthew T. Clough,John Ralph,Marco Kennema,Pieter C. A. Bruijnincx,Bert M. Weckhuysen +6 more
TL;DR: This review provides a “beginning‐to‐end” analysis of the recent advances reported in lignin valorisation, with particular emphasis on the improved understanding of lign in's biosynthesis and structure.
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