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Submissions from 2021

Vanillin based polymers: V. Poly(hydrovanilloin–urethane), Ananda S. Amarasekara and Rocio Garcia-Obregon

Conversion of levulinic acid and cellulose to γ-valerolactone over Raney-Ni catalyst using formic acid as a hydrogen donor, Ananda S. Amarasekara, Yen Maroney Lawrence, Anthony D. Fernandez, Tony L. Grady, and Bernard Wiredu

Pyrolysis Route for the Conversion of Bacterial Cellulose to Graphene Oxide, Ananda S. Amarasekara and Deping Wang

Catalytic upgrading of biomass derived furans, Fang Deng and Ananda S. Amarasekara

Interactions of Cellulose Model Compound D-Cellobiose with Selected Metal Chlorides in Water: Identification of Chelating Oxygen Atoms, Harshica Fernando and Ananda S. Amarasekara

Radiosynthesis of 5-[18f]fluoro-1,2,3-triazoles through aqueous iodine–[18f]fluorine exchange reaction, Xiang Zhang, Falguni Basuli, Sameh Abdelwahed, Tadhg Begley, and Rolf Swenson

Submissions from 2020

Pd/C catalyzed room-temperature, atmospheric pressure hydrogenation of furanic bio-oils from acidic ionic liquid catalyzed liquefaction of biomass in acetone, Ananda S. Amarasekara and Cristian D. Gutierrez Reyes

Biocatalytic reduction of 5-hydroxymethylfurfural to 2,5-furandimethanol using coconut (Cocos nucifera L.) water, Ananda S. Amarasekara, Cristian D. Gutierrez Reyes, and Rocio Garcia Obregon

Acidic ionic liquid catalyzed liquefactions of corn cobs and switchgrass in acetone: Analysis of bio-oils using LC-MS and GC-MS, Ananda S. Amarasekara and Cristian D.Gutierrez Reyes

A comparison of kombucha SCOBY bacterial cellulose purification methods, Ananda S. Amarasekara, Deping Wang, and Tony L. Grady

Iron(0)-Catalyzed Hydrothermal Liquefaction of Switchgrass: the Effects of Co-Catalysts and Reductive Conditions, Fang Deng and Ananda S. Amarasekara

Iron based catalysts in biomass processing, Hongbo Du, Fang Deng, Raghava R. Kommalapati, and Ananda S. Amarasekara

Submissions from 2019

Charge-transfer or excimeric state? Exploring the nature of the excited state in cofacially arrayed polyfluorene derivatives, Ainur Abzhanova, Lena V. Ivanova, Denan Wang, Tushar S. Navale, Sameh H. Abdelwahed, Maxim V. Ivanov, Sergey Lindeman, Rajendra Rathore, and Scott A. Reid

Ionic Liquids in Biomass Processing, Ananda S. Amarasekara

A comparison of homogeneous and heterogeneous Brønsted acid catalysts in the reactions of meso-erythritol with aldehyde/ketones, Ananda S. Amarasekara, Shahrukh R. Ali, Harshica Fernando, Victoria Sena, and Tatiana V. Timofeeva

Acidic ionic liquid catalyzed liquefaction of untreated switchgrass biomass in acetone and Pd-La(OTf)3 catalyzed reduction of the products, Ananda S. Amarasekara and Fang Deng

Single reagent treatment and degradation of switchgrass using iron(III)chloride: The effects on hemicellulose, cellulose and lignin, Ananda S. Amarasekara and Fang Deng

Vanillin-based polymers: IV. Hydrovanilloin epoxy resins, Ananda S. Amarasekara, Rocio Garcia-Obergon, and Audie K. Thompson

BrØnsted acidic ionic liquid catalyzed one-pot conversion of cellulose to furanic biocrude and identification of the products using LC-MS, Ananda S. Amarasekara and Cristian D. Gutierrez Reyes

Kinetics and mechanism of the solid-acid catalyzed one-pot conversion of d-fructose to 5, 5′-[oxybis(methylene)]bis[2-furaldehyde] in dimethyl sulfoxide, Ananda S. Amarasekara, Loc H. Nguyen, Hongbo Du, and Raghava R. Kommalapati

Homogeneous phase synthesis of chitosan silica hybrid materials in ionic liquid medium and adsorption of Fe(III) from aqueous solutions, Ananda S. Amarasekara and Deping Wang

Solid acid catalyzed aldol dimerization of levulinic acid for the preparation of C10 renewable fuel and chemical feedstocks, Ananda S. Amarasekara, Bernard Wiredu, Tony L. Grady, Rocio Garcia Obregon, and Davor Margetić

Hydrolysis and interactions of D-cellobiose with polycarboxylic acids, Ananda S. Amarasekara, Bernard Wiredu, and Yen Maroney Lawrence

Submissions from 2018

Acid catalyzed aldol condensations of ketones with glyoxylic acid: A simple single-step synthesis of 4-oxo-2,5-heptdienedioic acids, Ananda S. Amarasekara and Uyen Ha

Renewable polymers: Synthesis and characterization of poly(levulinic acid–pentaerythritol), Ananda S. Amarasekara, Uyen Ha, and Nnaemeka C. Okorie

Raney-Ni catalyzed conversion of levulinic acid to 5-methyl-2-pyrrolidone using ammonium formate as the H and N source, Ananda S. Amarasekara and Yen Maroney Lawrence

1-(Alkylsulfonic)-3-methylimidazolium chloride BrÖnsted acidic ionic liquid catalyzed hydrogen peroxide oxidations of biomass derived furan aldehydes, Ananda S. Amarasekara and Nnaemeka C. Okorie

An Aminoimidazole Radical Intermediate in the Anaerobic Biosynthesis of the 5,6-Dimethylbenzimidazole Ligand to Vitamin B12, Derek M. Gagnon, Troy A. Stich, Angad P. Mehta, Sameh H. Abdelwahed, Tadhg P. Begley, and R. David Britt

Submissions from 2017

Renewable polymers: Synthesis and characterization of poly(4-ketopimelic acid-glycerol), Ananda S. Amarasekara, Muhammad A. Hasan, and Eve Larkin

Sulfuric acid and Amberlyst-H+ catalyzed condensation reactions of renewable keto acids with paraformaldehyde: Synthesis of a new dispiro bis-lactone ring system 2,9,13-trioxadispiro[4.1.4.3]tetradecane-3,6,10-trione, Ananda S. Amarasekara, Uyen Ha, Marina S. Fonari, Shabari Nath Bejagam, and Davor Margetić

A two-step efficient preparation of a renewable dicarboxylic acid monomer 5,5′-[oxybis(methylene)]bis[2-furancarboxylic acid] from D-fructose and its application in polyester synthesis, Ananda S. Amarasekara, Loc H Nguyen, Nnaemeka C. Okorie, and Saad M Jamal

Acidic ionic liquid polymers: poly(bis-imidazolium-p-phenylenesulfonic acid) and applications as catalysts in the preparation of 1-amidoalkyl-2-naphthols, Ananda S. Amarasekara, Jennifer Nguyen, and Ashfaqur Razzaq

Hückel theory + reorganization energy = Marcus-Hush theory: Breakdown of the 1/n trend in π-conjugated poly-p-phenylene cation radicals is explained, Maxim V. Ivanov, Marat R. Talipov, Anitha Boddeda, Sameh H. Abdelwahed, and Rajendra Rathore

Origin of the Regioselectivity in the Aldol Condensation between Hydroxymethylfurfural and Levulinic Acid: A DFT Investigation, Liwei Zhao, Nnenna Elechi, Richard Qian, Timila B. Singh, Ananda S. Amarasekara, and Hua Jun Fan

Submissions from 2016

Acidic Ionic Liquids, Ananda S. Amarasekara

Acid Catalyzed Competitive Esterification and Ketalization of Levulinic Acid with 1,2 and 1,3-Diols: The Effect of Heterogeneous and Homogeneous Catalysts, Ananda S. Amarasekara and Moriam A. Animashaun

Vanillin based polymers: III. Electrochemical dimerization of vanillin revisited and synthesis of hydrovanilloin–formaldehyde polymer, Ananda S. Amarasekara and Muhammad A. Hasan

A two step method for the preparation of carbamate cross-linked cellulose films using an ionic liquid and their water retention properties, Ananda S. Amarasekara, Muhammad A. Hasan, and Uyen Ha

Acid catalyzed condensation of levulinic acid with glyoxylic acid: Synthesis of 1-methyl-2,8-dioxabicyclo[3.3.0]oct-4-ene-3,7-dione, Ananda S. Amarasekara and Uyen Ha

Chemocatalytic hydrolysis of cellulose at 37 °c, 1 atm, Ananda S. Amarasekara and Bernard Wiredu

Interactions of d-cellobiose with selected chloride salts: A 13C NMR and FT-IR study, Ananda S. Amarasekara and Bernard Wiredu

The effect of manganese(II) chloride as a co-catalyst on cellobiose hydrolysis in dilute aqueous sulfuric acid and acidic ionic liquid mediums, Ananda S. Amarasekara and Bernard Wiredu

A Remarkable Oxidative Cascade That Replaces the Riboflavin C8 Methyl with an Amino Group during Roseoflavin Biosynthesis, Isita Jhulki, Prem K. Chanani, Sameh H. Abdelwahed, and Tadhg P. Begley

From Wires to Cables: Attempted Synthesis of 1,3,5-Trifluorenylcyclohexane as a Platform for Molecular Cables, Marat R. Talipov, Sameh H. Abdelwahed, Khushabu Thakur, Scott A. Reid, and Rajendra Rathore

Submissions from 2015

Pd/C catalyzed conversion of levulinic acid to γ-valerolactone using alcohol as a hydrogen donor under microwave conditions, Ananda S. Amarasekara and Muhammad A. Hasan

NaOH catalyzed condensation reactions between levulinic acid and biomass derived furan-aldehydes in water, Ananda S. Amarasekara, Timila B. Singh, Eve Larkin, Muhammad A. Hasan, and Hau Jun Fan

Synthesis and Pyrolysis of Selected Metal Levulinates, Ananda S. Amarasekara and Dominique T. Sterling-Wells

Crystal structure of a polymeric calcium levulinate dihydrate: Catena-poly[[diaquacalcium]-bis(μ2-4-oxobutanoato)], Ananda S. Amarasekara, Dominique T. Sterling-Wells, Carlos Ordonez, Marie Josiane Ohoueu, Marina S. Fonari, and G. Smith

Acidic ionic liquid catalyzed liquefaction of cellulose in ethylene glycol; Identification of a new cellulose derived cyclopentenone derivative, Ananda S. Amarasekara and Bernard Wiredu

γ-Valerolactone from pyrolysis of calcium salts of levulinic-formic acid mixtures derived from cellulose, Ananda S. Amarasekara, Bernard Wiredu, and Dre'Langala N. Edwards

Non-canonical active site architecture of the radical SAM thiamin pyrimidine synthase, Michael K. Fenwick, Angad P. Mehta, Yang Zhang, Sameh H. Abdelwahed, Tadhg P. Begley, and Steven E. Ealick

Molybdopterin biosynthesis - Mechanistic studies on a novel MoaA catalyzed insertion of a purine carbon into the ribose of GTP, Angad P. Mehta, Sameh H. Abdelwahed, and Tadhg P. Begley

Anaerobic 5-Hydroxybenzimidazole Formation from Aminoimidazole Ribotide: An Unanticipated Intersection of Thiamin and Vitamin B12 Biosynthesis, Angad P. Mehta, Sameh H. Abdelwahed, Michael K. Fenwick, Amrita B. Hazra, Michiko E. Taga, Yang Zhang, Steven E. Ealick, and Tadhg P. Begley

Radical S-adenosylmethionine (SAM) enzymes in cofactor biosynthesis: A treasure trove of complex organic radical rearrangement reactions, Angad P. Mehta, Sameh H. Abdelwahed, Nilkamal Mahanta, Dmytro Fedoseyenko, Benjamin Philmus, Lisa E. Cooper, Yiquan Liu, Isita Jhulki, Steven E. Ealick, and Tadhg P. Begley

1-(1-Propylsulfonic)-3-methylimidazolium chloride acidic ionic liquid catalyzed hydrolysis of cellulose in water: Effect of metal ion co-catalysts, Bernard Wiredu and Ananda S. Amarasekara

The effect of metal ions as co-catalysts on acidic ionic liquid catalyzed single-step saccharification of corn stover in water, Bernard Wiredu and Ananda S. Amarasekara

Submissions from 2014

1-(1-Alkylsulfonic)-3-methylimidazolium chloride Brönsted acidic ionic liquid catalyzed Skraup synthesis of quinolines under microwave heating, Ananda S. Amarasekara and Muhammad A. Hasan

Mechanism of 1-(1-propylsulfonic)-3-methylimidazolium chloride catalyzed transformation of d-glucose to 5-hydroxymethylfurfural in DMSO: An NMR study, Ananda S. Amarasekara and Ashfaqur Razzaq

Sol-gel synthesis, characterization and water vapor adsorption properties of 1,1′-(1,6-hexanediyl)-bis(imidazolium)dichloride-silica hybrid material, Ananda S. Amarasekara, Ashfaqur Razzaq, Robert Caballero, and Bernard Wiredu

Acidic Ionic Liquid Catalyzed One-Pot Conversion of Cellulose to Ethyl Levulinate and Levulinic Acid in Ethanol-Water Solvent System, Ananda S. Amarasekara and Bernard Wiredu

Single reactor conversion of corn stover biomass to C5-C20 furanic biocrude oil using sulfonic acid functionalized Brönsted acidic ionic liquid catalysts, Ananda S. Amarasekara and Bernard Wiredu

Molybdopterin biosynthesis: Trapping of intermediates for the MoaA-catalyzed reaction using 2′-deoxyGTP and 2′-chloroGTP as substrate analogues., Angad P. Mehta, Sameh H. Abdelwahed, Hui Xu, and Tadhg P. Begley

Synthesis of a silica-immobilized Brönsted acidic ionic liquid catalyst and hydrolysis of cellulose in water under mild conditions, Bernard Wiredu and Ananda S. Amarasekara

Submissions from 2013

Handbook of Cellulosic Ethanol, Ananda S. Amarasekara

Degradation of Untreated Switchgrass Biomass into Reducing Sugars in 1-(Alkylsulfonic)-3-Methylimidazolium Brönsted Acidic Ionic Liquid Medium Under Mild Conditions, Ananda S. Amarasekara and Preethi Shanbhag

In vitro reconstitution of the radical S-adenosylmethionine enzyme MqnC involved in the biosynthesis of futalosine-derived menaquinone, Lisa E. Cooper, Dmytro Fedoseyenko, Sameh H. Abdelwahed, Soong Hyun Kim, Tohru Dairi, and Tadhg P. Begley

Molybdopterin biosynthesis: Trapping an unusual purine ribose adduct in the MoaA-catalyzed reaction, Angad P. Mehta, Sameh H. Abdelwahed, and Tadhg P. Begley

Catalysis of a new ribose carbon-insertion reaction by the molybdenum cofactor biosynthetic enzyme MoaA, Angad P. Mehta, Jeremiah W. Hanes, Sameh H. Abdelwahed, David G. Hilmey, Petra Hänzelmann, and Tadhg P. Begley

Submissions from 2012

Synthesis and characterization of branched polymeric ionic liquids with imidazolium chloride segments, Ananda S. Amarasekara, Brandon Callis, and Bernard Wiredu

A comparison of dilute aqueous p-toluenesulfonic and sulfuric acid pretreatments and saccharification of corn stover at moderate temperatures and pressures, Ananda S. Amarasekara and Bernard Wiredu

Aryl sulfonic acid catalyzed hydrolysis of cellulose in water, Ananda S. Amarasekara and Bernard Wiredu

Vanillin based polymers: I. An electrochemical route to polyvanillin, Ananda S. Amarasekara, Bernard Wiredu, and Ashfaqur Razzaq

Identification of the product of toxoflavin lyase: Degradation via a baeyer-villiger oxidation, Benjamin Philmus, Sameh Abdelwahed, Howard J. Williams, Michael K. Fenwick, Steven E. Ealick, and Tadhg P. Begley

Electrochemistry and electrogenerated chemiluminescence of π-stacked poly(fluorenemethylene) oligomers. multiple, interacting electron transfers, Honglan Qi, Jinho Chang, Sameh H. Abdelwahed, Khushabu Thakur, Rajendra Rathore, and Allen J. Bard

Submissions from 2011

5-Hydroxymethylfurfural Based Polymers, Ananda S. Amarasekara

Synthesis of levulinic acid-glycerol ketal-ester oligomers and structural characterization using NMR spectroscopy, Ananda S. Amarasekara and Steven A. Hawkins

Thermal properties of sulfonic acid group functionalized Brönsted acidic ionic liquids, Ananda S. Amarasekara and Onome S. Owereh

Interactions of D-cellobiose with p-toluenesulfonic acid in aqueous solution: A 13C NMR study, Ananda S. Amarasekara, Onome S. Owereh, and Brian Ezeh

Synthesis and characterization of polymeric ionic liquid poly(imidazolium chloride-1,3-diylbutane-1,4-diyl), Ananda S. Amarasekara and Preethi Shanbhag

Degradation of cellulose in dilute aqueous solutions of acidic ionic liquid 1-(1-propylsulfonic)-3-methylimidazolium chloride, and p-toluenesulfonic acid at moderate temperatures and pressures, Ananda S. Amarasekara and Bernard Wiredu

Submissions from 2010

X-ray crystallography and computational studies of the structure of bis-nitrone, 2,5-bis{[methyl(oxido)imino]phenyl}-furan, Ananda S. Amarasekara, Diamond Lewis, Shravana L. Nayani, Tatiana V. Timofeeva, and Hau Jun Fan

Synthesis of a sulfonic acid functionalized acidic ionic liquid modified silica catalyst and applications in the hydrolysis of cellulose, Ananda S. Amarasekara and Onome S. Owereh

A Radical dance in thiamin biosynthesis: Mechanistic analysis of the bacterial hydroxymethylpyrimidine phosphate synthase, Abhishek Chatterjee, Amrita B. Hazra, Sameh Abdelwahed, David G. Hilmey, and Tadhg P. Begley

Catalysis of a flavoenzyme-mediated amide hydrolysis, Tathagata Mukherjee, Yang Zhang, Sameh Abdelwahed, Steven E. Ealick, and Tadhg P. Begley

Crossover from single-step tunneling to multistep hopping for molecular triplet energy transfer, Josh Vura-Weis, Sameh H. Abdelwahed, Ruchi Shukla, Rajendra Rathore, Mark A. Ratner, and Michael R. Wasielewski

Submissions from 2009

Zinc chloride mediated degradation of cellulose at 200 °C and identification of the products, Ananda S. Amarasekara and Chidinma C. Ebede

Renewable resources based polymers: Synthesis and characterization of 2,5-diformylfuran-urea resin, Ananda S. Amarasekara, Dalkeith Green, and La Toya D. Williams

Homogeneous phase synthesis of cellulose carbamate silica hybrid materials using 1-n-butyl-3-methylimidazolium chloride ionic liquid medium, Ananda S. Amarasekara and Onome S. Owereh

Hydrolysis and decomposition of cellulose in bron̈sted acidic ionic liquids under mild conditions, Ananda S. Amarasekara and Onome S. Owereh

Synthesis of 4-acylpyrazolone Schiff base ligand grafted silica and selectivity in adsorption of lanthanides from aqueous solutions, Ananda S. Amarasekara, Onome S. Owereh, and Sukesh K. Aghara

Synthesis of functionalized polysiloxane 4-acylpyrazolone Schiff base ligand system and its applications in the adsorption of lanthanide ions from aqueous solutions, Ananda S. Amarasekara, Onome S. Owereh, and Sukesh K. Aghara

Structural tautomerism of 4-acylpyrazolone schiff bases and crystal structure of 5-methyl-2-phenyl-4-{1-[(pyridin-2-ylmethyl)-amino]-ethylidene}-2,4-dihydro-pyrazol-3-one, A. S. Amarasekara, O. S. Owereh, K. A. Lyssenko, and T. V. Timofeeva

Submissions from 2008

Efficient oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran using Mn(III)-salen catalysts, Ananda S. Amarasekara, Dalkeith Green, and Erinn McMillan

A simple one-pot synthesis of Jacobson-Katsuki type chiral Mn(III)-salen catalyst immobilized in silica by sol-gel process and applications in asymmetric epoxidation of alkenes, Ananda S. Amarasekara, Ivana McNeal, Jeffry Murillo, Dalkeith Green, and Alecia Jennings

Mechanism of the dehydration of d-fructose to 5-hydroxymethylfurfural in dimethyl sulfoxide at 150 °C: an NMR study, Ananda S. Amarasekara, La Toya D. Williams, and Chidinma C. Ebede

Submissions from 2007

Cycloaddition reactions of 5-hydroxymethyl-furan-2-nitrileoxide, Ananda S. Amarasekara, Osayamen Edigin, and Wendy Hernandez

One-pot synthesis of cobalt-salen catalyst immobilized in silica by sol-gel process and applications in selective oxidations of alkanes and alkenes, Ananda S. Amarasekara, Aderemi R. Oki, Ivana McNeal, and Uchenna Uzoezie

Effect of oversulfation on the chemical and biological properties of chondroitin-6-sulfate, Ananda S. Amarasekara, Gloria Opoku, Xiangdong Qiu, and Vasant Doctor

Submissions from 2006

Baker's yeast (Saccharomyces cerevisiae) mediated transformations of C-aryl-N-phenylnitrones, Ananda S. Amarasekara, Wendy Hernandez, and Paul Bonham

Effect of oversulfation on the chemical and biological properties of fucoidan, Xiangdong Qiu, Ananda Amarasekara, and Vasant Doctor