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Polycyclic Aromatics Observed in Enzymatic Lignin by Spectral Characterization and Ruthenium Ion-Catalyzed Oxidation

https://doi.org/10.1021/acs.jafc.1c04416

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1 of the 39 references listed on this page is in the Retraction Watch database as retracted (export 2026-10-28): 10.1002/app.32428 (notice 2013-05-27).

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What this work says

Outgoing claims: the papers this work cites, builds on, or argues with.

inferredcites →https://doi.org/10.1002/anie.197403131openalex-snapshot

Beech Lignin—Proposal of a Constitutional Scheme

inferredcites →https://doi.org/10.1002/app.32428openalex-snapshot

Retracted: Isolation and chemical structure characterization of enzymatic lignin from Populus deltoides wood

inferredcites →https://doi.org/10.1002/cctc.201200616openalex-snapshot

Heterogeneously Catalysed Mild Hydrogenolytic Depolymerisation of Lignin Under Microwave Irradiation with Hydrogen‐Donating Solvents

inferredcites →https://doi.org/10.1002/cssc.202001324openalex-snapshot

Lignin Source and Structural Characterization

inferredcites →https://doi.org/10.1007/978-1-4939-6722-3_14openalex-snapshot

Lignin Analysis by HPLC and FTIR

inferredcites →https://doi.org/10.1007/978-3-642-74065-7_11openalex-snapshot

Cross Polarization/Magic Angle Spinning Nuclear Magnetic Resonance (CP/MAS NMR) Spectroscopy

inferredcites →https://doi.org/10.1007/bf00584038openalex-snapshot

A structural model of softwood lignin

inferredcites →https://doi.org/10.1007/bf02869686openalex-snapshot

Ruthenium-ion-catalyzed oxidation of asphaltenes and oil-source correlation of heavy oils from the Lunnan and Tahe oilfields in the Tarim Basin, NW China

inferredcites →https://doi.org/10.1016/0016-2361(85)90398-9openalex-snapshot

Ruthenium tetroxide catalysed oxidation of Illinois No. 6 coalThe formation of volatile monocarboxylic acids

inferredcites →https://doi.org/10.1016/0016-2361(91)90064-hopenalex-snapshot

Molecular characterization of kerogens by mild selective chemical degradation — ruthenium tetroxide oxidation

inferredcites →https://doi.org/10.1016/0146-6380(81)90013-9openalex-snapshot

Nuclear magnetic resonance studies of ancient buried wood—I. Observations on the origin of coal to the brown coal stage

inferredcites →https://doi.org/10.1016/0146-6380(82)90003-1openalex-snapshot

Nuclear magnetic resonance studies of ancient buried wood—II. Observations on the origin of coal from lignite to bituminous coal

inferredcites →https://doi.org/10.1016/0146-6380(87)90049-0openalex-snapshot

Chemical structural studies of natural lignin by dipolar dephasing solid-state 13C nuclear magnetic resonance

inferredcites →https://doi.org/10.1016/j.biortech.2019.121878openalex-snapshot

Advances in lignin valorization towards bio-based chemicals and fuels: Lignin biorefinery

inferredcites →https://doi.org/10.1016/j.chempr.2019.03.007openalex-snapshot

Breaking the Limit of Lignin Monomer Production via Cleavage of Interunit Carbon–Carbon Linkages

inferredcites →https://doi.org/10.1016/j.fuel.2014.03.007openalex-snapshot

Insight into the structural features of macromolecular aromatic species in Huolinguole lignite through ruthenium ion-catalyzed oxidation

inferredcites →https://doi.org/10.1016/j.fuel.2016.10.112openalex-snapshot

A new insight into the structure of Huolinhe lignite based on the yields of benzene carboxylic acids

inferredcites →https://doi.org/10.1016/j.fuel.2018.12.111openalex-snapshot

Insight into aromatic structures of a middle-temperature coal tar pitch by direct characterization and ruthenium ion-catalyzed oxidation

inferredcites →https://doi.org/10.1016/j.fuproc.2007.11.005openalex-snapshot

A newly proposed view on coal molecular structure integrating two concepts: Two phase and uniphase models

inferredcites →https://doi.org/10.1016/j.fuproc.2018.03.029openalex-snapshot

New insight into the chemical structures of Huadian kerogen with supercritical ethanolysis: Cleavage of weak bonds to small molecular compounds

inferredcites →https://doi.org/10.1016/j.indcrop.2014.05.003openalex-snapshot

Characteristics of wheat straw lignins from ethanol-based organosolv treatment

inferredcites →https://doi.org/10.1016/s0165-2370(00)00110-8openalex-snapshot

Characterization of the water-insoluble fraction from pyrolysis oil (pyrolytic lignin). Part I. PY–GC/MS, FTIR, and functional groups

inferredcites →https://doi.org/10.1021/acs.chemrev.5b00155openalex-snapshot

Catalytic Transformation of Lignin for the Production of Chemicals and Fuels

inferredcites →https://doi.org/10.1021/acs.chemrev.5b00345openalex-snapshot

Strategies for the Conversion of Lignin to High-Value Polymeric Materials: Review and Perspective

inferredcites →https://doi.org/10.1021/acs.energyfuels.5b02533openalex-snapshot

Quantitative Molecular Characterization of Petroleum Asphaltenes Derived Ruthenium Ion Catalyzed Oxidation Product by ESI FT-ICR MS

inferredcites →https://doi.org/10.1021/acs.energyfuels.9b00341openalex-snapshot

Molecular Structure of Heavy Petroleum: Revealed by Molecular Composition of Ruthenium-Ion-Catalyzed Oxidation Products

inferredcites →https://doi.org/10.1021/ef00048a029openalex-snapshot

Studies on Aliphatic Portion of Coal Organic Materials Based on Ruthenium Ion Catalyzed Oxidation

inferredcites →https://doi.org/10.1021/ef200738popenalex-snapshot

Evaluation of Structural Characteristics of Huadian Oil Shale Kerogen Using Direct Techniques (Solid-State 13C NMR, XPS, FT-IR, and XRD)

inferredcites →https://doi.org/10.1021/ef201196vopenalex-snapshot

FTIR and 13C NMR Investigation of Coal Component of Late Permian Coals from Southern China

inferredcites →https://doi.org/10.1021/ef502373popenalex-snapshot

Structural Characterization of Typical Organic Species in Jincheng No. 15 Anthracite

inferredcites →https://doi.org/10.1021/ef980079hopenalex-snapshot

Structural Analysis of the Asphaltene Fraction of an Arabian Mixture by a Ruthenium-Ion-Catalyzed Oxidation Reaction

inferredcites →https://doi.org/10.1021/ef980235kopenalex-snapshot

Ruthenium-Ions-Catalyzed Oxidation of an Immature Asphaltene: Structural Features and Biomarker Distribution

inferredcites →https://doi.org/10.1021/ef980245lopenalex-snapshot

Structural Features of Boscan and Duri Asphaltenes

inferredcites →https://doi.org/10.1021/ef980274wopenalex-snapshot

Additional Structural Details on Athabasca Asphaltene and Their Ramifications

inferredcites →https://doi.org/10.1039/c0gc00181copenalex-snapshot

Catalytic disassembly of an organosolv lignin via hydrogen transfer from supercritical methanol

inferredcites →https://doi.org/10.1039/c3gc41631copenalex-snapshot

Biomass feedstocks for renewable fuel production: a review of the impacts of feedstock and pretreatment on the yield and product distribution of fast pyrolysis bio-oils and vapors

inferredcites →https://doi.org/10.1039/c6gc02473dopenalex-snapshot

Catalytic transfer hydrogenolysis of ionic liquid processed biorefinery lignin to phenolic compounds

inferredcites →https://doi.org/10.1039/c7gc02087bopenalex-snapshot

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

inferredcites →https://doi.org/10.1126/science.148.3670.595openalex-snapshot

Lignin: Its Constitution and Formation from p -Hydroxycinnamyl Alcohol

What points at this work

Incoming claims: where this work appears in other papers’ reference lists and arguments.

inferred← citeshttps://doi.org/10.2139/ssrn.4017211openalex-extracted

inferred← citeshttps://doi.org/10.2139/ssrn.4499174openalex-extracted

Characterization of Multiring Aromatic Clusters in Lignin Via Synchronous Fluorescence Spectroscopy

inferred← citeshttps://doi.org/10.1002/ente.202401797openalex-snapshot

Oxidative Depolymerization of Lignin to Monophenolic Compounds Catalyzed by Spinel CuCo2O4

inferred← citeshttps://doi.org/10.1016/j.biombioe.2026.110158openalex-snapshot

Two-step catalytic hydrogenation of lignin to high-yield monocyclic and polycyclic aromatic hydrocarbons

inferred← citeshttps://doi.org/10.1016/j.fuel.2022.125017openalex-snapshot

New insights into the coalification of lignite from lignin: A comparison of their chemical structures

inferred← citeshttps://doi.org/10.1016/j.fuel.2024.131412openalex-snapshot

Hydroliquefaction of lignin: Can it generate recycle solvents by itself?

inferred← citeshttps://doi.org/10.1016/j.fuel.2025.135974openalex-snapshot

Complete depolymerization of lignin to high-yield monocyclic and polycyclic aromatic hydrocarbons via solvent-free catalytic hydrogenation

inferred← citeshttps://doi.org/10.1016/j.fuproc.2021.107135openalex-snapshot

A study on the structure of Naomaohu coal and its suitability for direct coal liquefaction

inferred← citeshttps://doi.org/10.1016/j.microc.2024.111412openalex-snapshot

Characterization of fused aromatic multirings in lignin via synchronous fluorescence spectroscopy and catalytic hydro-depolymerization

inferred← citeshttps://doi.org/10.1016/j.renene.2023.03.025openalex-snapshot

Novel chemical looping oxidation of biomass-derived carbohydrates to super-high-yield formic acid using heteropolyacids as oxygen carrier

inferred← citeshttps://doi.org/10.1016/j.seppur.2025.136234openalex-snapshot

Amorphous phenolic lignin porous carbon for highly effective capture of iodine

inferred← citeshttps://doi.org/10.1021/acs.iecr.4c04620openalex-snapshot

Are Polycyclic Aromatic Hydrocarbons in the Hydro-Liquefaction Products of Lignin Derived from the Lignin or Hydrogen Donor Solvent?

inferred← citeshttps://doi.org/10.1021/acsomega.2c01812openalex-snapshot

A New Structural Model of Enzymatic Lignin with Multiring Aromatic Clusters

inferred← citeshttps://doi.org/10.1039/d5me00220fopenalex-snapshot

Reconstruction of realistic kerogen molecular models in shale oil and gas reservoirs: the physicochemical inversion method

inferred← citeshttps://doi.org/10.3390/molecules30010020openalex-snapshot

Interrelation of Natural Polyphenol and Fibrosis in Diabetic Nephropathy

inferred← citeshttps://doi.org/10.3390/polym16091237openalex-snapshot

Preparation and Structural Analysis of a Water-Soluble Aminated Lignin

inferred← citeshttps://doi.org/10.3390/pr13113507openalex-snapshot

Preparation and Properties of Nano-Lignin-Reinforced Poly(butylene adipate-co-terephthalate) Composites

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