Dr. Alexey Ignatchenko Research Group

                            Publications

26. Ignatchenko, A.V.; Springer, M.E.; Walker, J.D.; and Brennessel, W.W. Alkyl Substituted Beta-Keto Acids: Molecular Structure and Decarboxylation Kinetics in Aqueous Solution and on the Surface of Metal Oxides, J. Phys. Chem. C, 2021, 125, 6, 3368–3384.

25. Marie, O.; Ignatchenko, A.V.; Renz, M. Methyl ketones from carboxylic acids as valuable target molecules in the biorefinery, Catalysis Today, 2021, 367, 258-267.

24. Ignatchenko, A.V. Multiscale approach for the optimization of ketones production by the decarboxylative ketonization reaction, Catalysis Today, 2019, 338, 3–17.

23. Ignatchenko, A. V.; DiProspero, T.J.; Patel, H.; and LaPenna, J.R. Equilibrium in the Catalytic Condensation of Carboxylic Acids with Methyl Ketones to 1,3-Diketones and the Origin of the Re-Ketonization Effect, ACS Omega. 2019, 4, 11032–11043.

22. Ignatchenko, A. V.; Cohen, A.J. Reversibility of the catalytic ketonization of carboxylic acids and of beta-keto acids decarboxylation, Catal. Commun. 2018, 111, 104–107.

21. Ignatchenko, A. V.; McSally, J.P.; Bishop, M.D.; Zweigle, J. Ab initio study of the mechanism of carboxylic acids cross-ketonization on monoclinic zirconia via condensation to beta-keto acids followed by decarboxylation, Mol. Catal. 2017, 441, 35–62.

20. Ignatchenko, A.V.; Deraddo, J.S.; Marino, V.J.; Mercado, A. Cross-Selectivity in the catalytic ketonization of carboxylic acids. Applied Catal. A: General, 2015, 498, 10-24.

19. Ignatchenko, A.V.; Kozliak, E.I. Distinguishing Enolic and Carbonyl Components in the Mechanism of Carboxylic Acid Ketonization on Monoclinic Zirconia. ACS Catal. 2012, 2, 1555–1562.

18. Ignatchenko, A.V.; Density Functional Theory Study of Carboxylic Acids Adsorption and Enolization on Monoclinic Zirconia Surfaces, J. Phys. Chem. C, 2011, 115 (32), 16012–16018.

17. Jiang, J.; Ignatchenko, A.; Aulich, T.R. Renewable Electrolytic Nitrogen Fertilizer Production; Final Report (Oct 24, 2008 – Sept 30, 2010) for North Dakota Industrial Commission Renewable Energy Council Contract No. R002-006, EERC Publication 2010-EERC-11-04, and Final Report (Oct 24, 2008 – Sept 30, 2010) for Minnesota Corn Research and Promotion Council and North Dakota Corn Utilization Council, EERC Publication 2010-EERC-10-01; Energy & Environmental Research Center: Grand Forks, ND, Oct 2010.

16. Ignatchenko, A.; Nealon, D.; Dushane, R.; Humphries, K. Interaction of Water with Titania and Zirconia Surfaces. J. Mol. Catal. A 2006, 256, 57–74.

15. Zimmerman, H.E.; Ignatchenko, A. Control of the Stereochemistry of Kinetic Protonation: Intramolecular Proton Delivery. J. Org. Chem. 1999, 64, 6635–6645.

14. Zimmerman, H.E.; Ignatchenko, A. Reversal of the stereochemistry of kinetic protonation by intramolecular proton delivery and a remarkable dependence of selectivity on donor concentration. J. Am. Chem. Soc. 1998, 120, 12992–12993.

13. Katritzky, A.R.; Ignatchenko, A.V.; Lang, H. Generalization of the Benzotriazole Mediated Introduction of N-substituents into Amides. J. Org. Chem. 1995, 60, 4002–4006.

12. Katritzky, A.R.; Ignatchenko, A.V.; Lang H.A. Novel Route to N-styrylamides. Synthetic Commun. 1995, 25, 1197–1204.

11. Katritzky, A.R.; Ignatchenko, A.V. Lang, H. Lithiation of N-substituted Benzotriazoles. Heterocycles, 1995, v. 41, p. 131–146.

10. Katritzky, A.R.; Ignatchenko, A.V.; Lan, X.; Lang, H.; Stevens, C. V.; Opitz, A.; Koch, R.; Anders, E. Benzotriazole Assisted (beta-lithiation of vinyl ethers. Tetrahedron 1994, 50, 6005–6016.

9. Ignatchenko, A.V.; Smagina, G.S.; Solokhina, A.B.; Besedina, O.A.; Idrisov, I.G. Investigation of the fractal structure of aggregates by sedimentation and hydrosol rheology methods. Colloid J. Russian Acad. Sci. (Translation of Kolloidnyi Zhurnal) 1992, 485–488.

8. Ignatchenko, A.V.; Ovcharenko, A.G.; Sataev, R.R.; Brylyakov, P.M. Surface Modification of Ultrafine Diamond Powder by Hexamethyleneamino Groups. J. Appl. Chem. USSR 1991, 752–755.

7. Solokhina, A.B.; Ignatchenko, A.V.; Ovcharenko, A.G.; Sataev, R.R. Optimization of Temperature Conditions for Washing Ultradispersed Diamonds. J. Appl. Chem. USSR 1991, 1607–1609.

6. Ovcharenko, A.G.; Solokhina, A.B.; Sataev, R.R.; Ignatchenko, A.V. .Electrophoretic Behavior of Ultrafine Diamond Particle Aggregates. Colloid J. USSR (Translation of Kolloidnyi Zhurnal) 1991, 888–891.

5. Plemenkov, V.V.; Butenko, O.Yu; Kleimenov, M.V.; Kleimenov, V.I.; Ignatchenko, A.V.; Bolesov, I.G. Photoelectron Spectra of 1-Methyl-1-(phenylethynyl)-cyclopropane and 1-Methyl-1-(phenylethynyl)-cyclopropene. Electronic and Spatial Structure of Geminal Alkylarylcyclopropanes and Alkylarylcyclopropenes. J. General Chem. USSR 1991, 1753–1757.

4. Bolesov, I.G.; Ignatchenko, A.V.; Bovin, N.V.; Prudchenko, I.A.; Surmina, L.S.; Plemenkov, V.V.; Petrovskii, P.V.; Romanov, I.V.; Mel'nik, I.I. Selectivity in the Reactions of 3,3-Disubstituted Cyclopropenes with Nitrile Oxides. J. Org. Chem.of the USSR 1990, 26, 87–102.

3. Plemenkov, V.V.; Zverev, V.V.; Vakar, V.M.; Ermolaeva, L.V.; Bolesov, I.G.; Ignatchenko, A.V. Photoelectron Spectra, Orbital Interactions and Conformations of Alkyl Alkenyl Cyclopropanes and Alkyl Alkenyl Cyclopropenes. J. Molec. Structure 1990, 21.

2. Plemenkov, V.V.; Zverev, V.V.; Vakar', V.M.; Ermolaeva, L.V.; Ignatchenko, A.V.; Tserevitinov, B.O.; Bolesov, I.G. Photoelectron Spectra, Orbital Interactions, and Conformations of 1-Alkenyl- 1-methylcyclopropanes and 3-Alkenyl-3-methylcyclopropenes. J. General Chem. USSR 1989, 874–878.

1. Ignatchenko, A.V.; Terent'ev, P.B. Isomerizing Recyclization of Quaternary Salts of Ethyl 3-(2-pyridyl) Butyrate and Diethyl 2-(2-pyridyl)ethyl Malonate. Chem. Heterocycl. Comp. 1987, 23, 292–295.

 

Patents

12. J. Jiang; A.V. Ignatchenko; T.R. Aulich; Electrochemical process for the preparation of nitrogen fertilizers. United States Patent 9,005,422, April 14, 2015.

11. A.V. Ignatchenko; M.M. King; Z. Liu; C.W. Whiddon; Catalysts selective for the preparation of mixed ketones from a mixture of carboxylic acids. U.S. Patent 7,659,432, February 9, 2010.

10. A.V. Ignatchenko; M.M. King; Catalyst for the production of methyl isopropyl ketone. U.S. Patent 7,501,379, March 10, 2009.

9.  A.V. Ignatchenko; M.M. King; Z. Liu; Catalyst for the preparation of ketones from carboxylic acids. United States Patent Application 20070088181, April 19, 2007.

8.  A.V. Ignatchenko; M.M. King; Z. Liu; C.W. Whiddon; Catalysts selective for the preparation of mixed ketones from a mixture of carboxylic acids. U.S. Patent 7,452,841, November 18, 2008.

7.  W.A. Beavers; A.V. Ignatchenko; Z. Liu; C.D. Ashcroft; T.M. White; Catalyst and process for the preparation of unsymmetrical ketones. United States Patent Application 20070100166, May 3, 2007.

6. A.V. Ignatchenko, W.A. Beavers, Z. Liu. Process for the Preparation of 3-Methyltetrahydrofuran. U.S. Patent 6,521,765, Feb 18, 2003.

5. W.A. Beavers, A.V. Ignatchenko. Process for Preparing 3-Methyltetrahydrofuran. U.S. Patent 6,812,354, Nov 2004.

4. W.A. Beavers, A.V. Ignatchenko. Process for Preparing Alpha- and Beta- Methyl-Gamma-Butyrolactone and 3-Methyltetrahydrofuran. U.S. Patent Application 2,004,0119052, June 2004.

3. A.G. Ovcharenko, A.V. Ignatchenko R.R. Sataev, P.M. Brylyakov,; Purification of ultradispersed diamond by removal of soluble and adsorbed impurities using electric field. SU 1,815,933 (A1 19960620), 1996.

2.  A.G. Ovcharenko, R.R. Sataev, A.B. Solokhina, A.V. Ignatchenko; Settling of Ultradispersed Diamonds from Water Suspensions. RU 2,019,500 (Cl. C01B31/06), Sep 15, 1994. CA 123:36484h.

1.  A.G. Ovcharenko, R.R. Sataev, A.V. Ignatchenko, P.M. Brylyakov; Apparatus for Settling and Purification of Finely Divided Diamonds in Aqueous Suspensions with Application of Electric Field. RU 2,019,501 (Cl. C01B31/06), Sep 15, 1994. CA 123:36485j.

 

Presentations
Ignatchenko A.V., Denman P.E., Acid-Base Strength on Metal Oxides: The Difference Made by Breathing Surface, 18th International Congress on Catalysis, Lyon, France, July 14-19, 2024.

Denman P.E., Ignatchenko A.V., Mapping acid-base sites on anatase titania surface, 18th International Congress on Catalysis, Lyon, France, July 14-19, 2024.

Ignatchenko A.V., Springer M.E., Ibrahim R.M., Walker J.D., Kostera J.P., Jorolemon J.J., Leonardo C.J., Preparation of ketones by decarboxylative ketonization: mechanism, rates of elementary steps, reversibility and degenerate reactions, 28th ORCS Conference, Jacksonville, Florida, United States, October 16-20, 2022.

Ignatchenko A.V., Willower J.P., French S.M., Use of Building Blocks Symmetry for the Diversification of the Carbon Schwarzites Bottom-Up Synthetic Design, ACS North Eastern Regional Meeting, Rochester, New York, NY, October 2-5, 2022.

Ignatchenko A.V., Ibrahim R., Kostera J.R., Jorolemon J.J., Leonardo C.J., Weldeslassie L., Alpha-C-H Acidity of Carboxylic acids on Surface of Metal Oxides and Enolization Kinetics, Proceedings of the 27th NACS Meeting, New York, NY, United States, May 22-27, 2022.

Jorolemon J.J. and Ignatchenko A.V. DFT Modelling of Acid-Base Active Centers on KOH-doped Anatase TiO2 for alpha-Deprotonation of Carboxylates, Proceedings of the 27th NACS Meeting, New York, NY, United States, May 22-27, 2022.

Jorolemon J.J. and Ignatchenko A.V., DFT study of anatase titania basic centers resulting from alkaline doping, poster at the 263rd ACS meeting, San Diego, CA, United States, March 20-24, 2022.

Kostera J.R., Walker J.D., Ignatchenko A.V., Effect of KOH treatment on ZrO2 catalyst activity for the enolization of isobutyric acid, poster at the 261st ACS National Meeting, April 5-30, 2021, online.

Ignatchenko A.V., Springer M.E., Walker J.D., Decarboxylation of beta-keto acids on surface of metal oxides: selectivity driven by entropy, oral presentation at the 261st ACS National Meeting, April 5-30, 2021, online.

Ignatchenko A.V., Willower J.P., Expanded family of Schwartz P-surfaces based on sp2 carbon heptagons, oral presentation at the 261st ACS National Meeting, April 5-30, 2021, online.

Ignatchenko A.V., Springer M., Walker J., Kinetics of beta-keto acids decarboxylation in solution and on surface of metal oxides, invited lecture at the 259th ACS meeting, Philadelphia, PA, United States, March 2020, cancelled.

Ignatchenko A.V., Springer M., Ibrahim R., Decarboxylative ketonization mechanism: rates of individual steps, invited lecture at the 257th ACS meeting, Orlando, FL, United States, March 31- April 4th, 2019.

Ignatchenko A.V.; Springer M., Beta keto acids: structure, reactivity, and formation as elusive intermediates in heterogeneous catalysis, oral presentation at the 24th biannual International Conference on Physical Organic Chemistry, ICPOC-24, Faro, Portugal, July 1-6, 2018.

Ignatchenko A.V.; Springer M., Beta keto acids: structure, reactivity, and formation as elusive intermediates in heterogeneous catalysis, invited lecture at the Institute of Chemical Technology, Valencia Polytechnic University, Valencia, Spain, June 29, 2018.

Ignatchenko A.V., Industrial preparation of unsymmetrical ketones through the lens of academic exercises on the catalytic decarboxylative ketonization mechanism, invited lecture at the 255th ACS meeting, New Orleans, LA, United States, March 18-22, 2018.

Ignatchenko, A.; Cohen A.; Fraser, O.; Wilder, M. Mechanism of catalytic decarboxylative cross-ketonization of a mixture of carboxylic acids, poster presentation at the GRC conference, Chemical Reactions at Surfaces, Lucca, Italy, February 5-10, 2017.

DiProspero T.J.; Patel H.; Ignatchenko A.V., Catalytic condensation of ketones with carboxylic acids, Proceedings of 24th NACS Meeting, Pittsburgh, PA, United States, June 14-19, 2015.

Aulich, T.R.; Ignatchenko, A.V.; Jiang, J. Electrochemical Process for Ammonia Production and Direct Ammonia Fuel Cell for Power Generation and Transportation. TechConnect Summit 2010, Anaheim,CA, United States, June 21-25, 2010.

Jiang, J.; Ignatchenko, A.V.; Zygarlicke, C.J.; Aulich, T.R. Integrated Electrochemical–Thermal Ammonia Production Process.  7th Annual NH3 Fuel Conference, Romulus, MI, United States, September 26–28, 2010.

A. Ignatchenko, Bimolecular catalytic reactions on monoclinic zirconia surface, invited lecture at the UND Chemistry Dept. Seminar, Feb. 26, 2010.

A. Ignatchenko, Enolization of Acetic Acid on Monoclinic Zirconia Surface, Proceedings of 21st NACS Meeting, San-Francisco, CA, United States, 2009.

Ignatchenko, A. Chemistry Basics of Carboxylic Acid Catalytic Conversion. In Proceedings of Biomass '08 Workshop: Power, Fuels, and Chemicals; Grand Forks, ND, United States, July 15–16, 2008.

A. Ignatchenko, J. Hill, J. Gray, D. Nealon and R. Dushane, Innovative use of a Gas Chromatograph for heterogeneous catalytic studies, Proceedings of 18th NACS Meeting, Cancun, Mexico, 2003, p. 169.