Synthetic and Medicinal Organic Chemistry, (4+3)-Cycloadditions, Synthesis and Chemistry of Benzothiazines, Cyclopentadienone Chemistry, Retro-Nazarov Reaction, Kagan's Ether Chemistry, Trögers Base Chemistry, Silver Ion Catalysis, Allenic Sulfone Chemistry, Fluorination and Total Synthesis
AB, University of Illinois-Chicago, 1980
PhD, University of Illinois-Urbana, 1985
Norman Rabjohn Distinguished Professor of Chemistry, 2000-present
Professor, University of Missouri, 1998-2000
Associate Professor, University of Missouri, 1992-1998
Assistant Professor, University of Missouri, 1986-1992
NIH Postdoctoral Fellow, Stanford University, 1985-1986
Honors and Awards
Oct 21, 2011: Sigma-Aldrich Lectureship, University of Nevada-Reno
2011: Invited Guest Professor, University of Strasbourg
2011: Japan Society for the Promotion of Science Fellow
2010: Prose Award-Honorable Mention-for Silver in Organic Chemistry
2010: Adjunct Professor, International Institute of Nano and Molecular Medicine
2010-present: Liebig Professorship, University of Giessen
2008: Research Fellowship, Alexander von Humboldt Foundation (Reinvitation)
2006: Big 12 Faculty Fellow, University of Texas-Austin
2000: Norman Rabjohn Distinguished Professorship, University of Missouri
1998: Research Fellowship, Alexander von Humboldt Foundation
1997: Arts and Science Student Government "Blue Chalk" Advising Award
1985: NIH Postdoctoral Fellowship, Stanford University
Selected Professional Activities
Editor: Advances in Cycloaddition, 1997-2001
Editor: Strategies and Tactics in Organic Synthesis, 2002-present
Editorial Board, Mini Reviews in Organic Chemistry, 2003-present
My research program encompasses many areas of organic chemistry with a principal focus on pericyclic reactions of reactive intermediates. We have also made significant contributions to molecular recognition and supramolecular chemistry in the course of our work on derivatives of Kagan’s ether and Tröger’s base.
In the area of (4+3)-cycloaddition chemistry, we are now especially interested in new mild methods to generate allylic cations. Our newest work is centered on the development of asymmetric processes and the application of methodology we have invented to the synthesis of biologically active natural products, compounds which served as drug leads or important tools for discovering the molecular mechanism by which small molecular produce their effects in living systems.
Our work with Kagan's ether and Tröger's base centers on the development of new chiral templates for applications in catalysis, molecular recognition and supramolecular chemistry. One current goal is developing a series of molecules for a process we call asymmetric charge transfer catalysis. Another concerns the design and synthesis of new ligands for the actinide elements
We are actively engaged in allenic sulfone and allylic sulfone chemistry. We have developed methods for the synthesis of value-added, boronated allylic sulfones and have invented a number of new processes that increase the synthetic value of allenic sulfones.
Finally, the construction of new chiral ligands for applications in asymmetric catalysis is one goal of our work involving the cyclic sulfoximines known as benzothiazines. We have also developed methodology that is applicable to the asymmetric total synthesis of a wide variety of natural products, including those of the pseudopterosin class. These compounds have biological activities that include powerful analgesic effects and potent antitubercular activity.
“(4+3)-Cycloaddition Reactions of N-Alkyl Oxidopyridinium Ions.” Chencheng Fu, Nestor Lora, Patrick L. Kirchhoefer, Dong Reyoul Lee, Erich Altenhofer, Charles L. Barnes, Natasha L. Hungerford, Elizabeth H. Krenske, and Michael Harmata. Angewandte Chemie, International Edition 2017, 56, 0000.
“Comments on a CIP rule conundrum: Why I think I’m right.” Michael Harmata. Tetrahedron Letters 2017, 58, 3687-3689.
“An Asymmetric, Catalytic (4+3) Cycloaddition Reaction of Cyclopentenyl Oxyallylic Cations.” Michael Topinka, Kerstin Zawatzky, Charles L. Barnes, Christopher J. Welch, and Michael Harmata. Organic Letters 2017, 19, 4106-4109.
“Electrophilic Trapping of α-Lithio Dienyl Sulfones.” Carissa S. Hampton and Michael Harmata. Tetrahedron Letters 2017, 58, 2530-2532.
“In vivo Transport of Three Radioactive [18F]-Fluorinated Deoxysucrose Analogs by the Maize Sucrose Transporter ZmSUT1.” Thu M. Tran, Carissa S. Hampton, Tom W. Brossard, Michael Harmata, J. David Robertson, Silvia S. Jurisson, and David M. Braun. Plant Physiology and Biochemistry 2017, 115, 1-11.
“Preparation of Propargylic Sulfinates and Their [2,3]-Sigmatropic Rearrangement to Allenic Sulfones.” Rama Rao Tata, Carissa S. Hampton, and Michael Harmata. Advanced Synthesis and Catalysis 2017, 359, 1232–1241.
“Synthesis, Characterization, and In Vitro Evaluation of New 99mTc/Re(V)-Cyclized Octreotide Analogues: An Experimental and Computational Approach.” Yawen Li, Lixin Ma, Vikram Gaddam, Fabio Gallazzi, Heather M. Hennkens, Michael Harmata, Michael R. Lewis, Carol A. Deakyne, and Silvia S. Jurisson. Inorganic Chemistry 2016, 55, 1124-1133.
“Mechanistic Aspects of the Palladium-Catalyzed Isomerization of Allenic Sulfones to 1-Arylsulfonyl 1,3-Dienes.” Carissa S. Hampton and Michael Harmata. The Journal of Organic Chemistry 2016, 82, 4807-4822.
“Synthesis of Tröger’s Base Derived Ligands: PHZ-Derivatized Ligand with Pendant Donor Arms.” Carissa S. Hampton and Michael Harmata. Tetrahedron 2016, 6064-6077.
“Metal-Catalyzed (4+3) Cycloadditions Involving Allylic Cations.” Darin E. Jones and Michael Harmata. Science of Synthesis, Metal-Catalyzed Cyclization Reactions 2 2016, 319-382.
“Silver-Catalyzed Cyclization of Sulfonyl Allenes to Dihydrofurans.” Rama Rao Tata and Michael Harmata. Organic Letters 2016, 5684–5687.
“Radiosynthesis of 6'-deoxy-6'[¹⁸F]fluorosucrose via Automated Synthesis and its Utility to Study in vivo Sucrose Transport in maize Zea mays Leaves.” David Rotsch, Tom Brossard, Saadia Bihmidine, Weijiang Ying, Vikram Gaddam, Michael Harmata, J. David Robertson, Michael Swyers, Sylvia Jurisson, and David M. Braun.. PLOS ONE 2015 10(5): e0128989. doi:10.1371/journal.pone.0128989.
“[2,3]-Sigmatropic Rearrangement of Propargylic Sulfinates by a Pale Cu1-USY Zeolite and Copper Salts.” Carissa S. Hampton and Michael Harmata. Tetrahedron Letters 2015, 56, 3243-3245.
“The Resolution and Determination of the Absolute Configuration of a Twisted Bis-Lactam Analogue of Tröger´s Base: a Comparative Spectroscopic and Computational Study.” Ögmundur Vidar Rúnarsson, Christian Benkhäuser, Niels Johan Christensen, Josep Artacho Ruiz, Erhad Ascic, Michael Harmata, Victor Snieckus, Kari Rissanen, Peter Fristrup Arne Lützen, and Kenneth Wärnmark. The Journal of Organic Chemistry, 2015, 80, 8142–8149.
“A Protocol for the exo-mono and exo,exo-bis Functionalization of the Diazocine Ring of Tröger’s Base.” Sami Dawaigher, Kristoffer Månsson, Erhad Ascic, Josep Artacho, Roger Mårtensson, Nagarajan Loganathan, Ola F. Wendt, Michael Harmata, Victor Snieckus, and Kenneth Wärnmark. The Journal of Organic Chemistry, 2015, 81, 12006-12014.
“Mechanistic Aspects of the Phosphine-Catalyzed Isomerization of Allenic Sulfones to 2-Arylsulfonyl-1,3-Dienes.” Carissa S. Hampton and Michael Harmata. The Journal of Organic Chemistry, 2015, 81, 12151-12158.
“Radical Isomerization of Borylated Allylic Sulfones.” Erich Altenhofer and Michael Harmata. Tetrahedron Letters 2015, 56, 3176-3178.
“[2,3]-Sigmatropic Rearrangement of Propargylic Sulfinates by a Pale Ag1-USY Zeolite and Silver Salts.” Carissa S. Hampton and Michael Harmata. Advanced Synthesis and Catalysis 2015, 357, 549-552.
“Suzuki-Miyaura Coupling Reactions of Conjunctive Reagents: 2-Borylated Allylic Sulfones.” Erich F. Altenhofer and Michael Harmata. The Journal of Organic Chemistry, 2015, 80, 8168–8174.
“Computational Analysis of the Stereochemical Outcome in Harmata’s Catalytic Asymmetric (4+3)-Cycloaddition Reaction.” Elizabeth Krenske, Kendall Houk and Michael Harmata. The Journal of Organic Chemistry 2015, 80, 744–750.
“A Synthesis of Dihydrofuran-3(2H)-ones.” Rama Rao Tata and Michael Harmata. The Journal of Organic Chemistry, 2015, 80, 6839–6845.
“The Quasi-Favorskii Rearrangement.” Michael Harmata. In Molecular Rearrangements in Organic Synthesis; Rojas, C. M., Ed.; John Wiley & Sons: Hoboken, 2015; Chapter 7.
“[2,3]-Sigmatropic Rearrangement of Propargylic Sulfinates by a Pale Cu1-USY Zeolite and Copper Salts. Carissa S. Hampton and Michael Harmata. Tetrahedron Letters 2015, 56, 3243-3245.
“A Synthesis of 6-Deoxy-6-Fluorosucrose Suitable for PET Applications.” Xuefeng Gao, Vikram Gaddam and Michael Harmata. Carbohydrate Research 2014, 400, 14-18.
“Catalytic Generation of Vinylthionium Ions. (4+3)-Cycloadditions and Friedel-Crafts Alkylations.” Michael Topinka, Rama Rao Tata and Michael Harmata. Organic Letters 2014, 16, 4476–4479.
“A New Synthesis of α’-Hydroxydienones.” Rama Rao Tata, Carissa S. Hampton, Erich F. Altenhofer, Michael Topinka, Weijiang Ying, Xuefeng Gao and Michael Harmata. Chemistry A European Journal 2014, 20, 13547–13550.
“Regiodivergent Synthesis of 1- and 2-Arylsulfonyl-1,3-Dienes.” Carissa S. Hampton and Michael Harmata. Organic Letters 2014, 16, 1256–1259.
“Synthesis of Functionalized Cyclic Boronates.” Erich Altenhofer and Michael Harmata. Organic Letters 2014, 16, 1-4.
“Formation and Ring-Opening of 8-Oxabicyclo[3.2.1]oct-6-en-3-ones from (4+3)-Cycloaddition of Furan and Chlorocyclopentanone Derivatives.” Xuefeng Gao and Michael Harmata. Tetrahedron 2013, 69, 7675–7682.
“Chemical Synthesis of 1’-Deoxy-1’-Fluorosucrose.” Weijiang Ying, Vikram Gaddam and Michael Harmata. Organic Letters 2013, 15, 2723–2725.
“Application of the [4+3]-Cycloaddition Reaction to the Synthesis of Natural Products.” Darin E. Jones and Michael Harmata. In Methods and Applications of Cycloaddition Reactions in Organic Synthesis; Nishiwaki, N., Ed.; Wiley: New York, 2014; Chapter 19.
“Further Studies of Benzothiazine Metalation.” Nathan L. Calkins and Michael Harmata. Synthesis 2013, 1785-1790.
“Generation and Alkylation of 2-Boryl Allylic Sulfone Anions.” Erich F. Altenhofer and Michael Harmata. Chemical Communications 2013, 49, 2365-2367.
“Synthesis Of 6'-Deoxy-6'-Fluorosucrose.” Vikram Gaddam and Michael Harmata. Carbohydrate Research 2013, 369, 38-41.
“Demethylenation of Tröger’s Bases with Concomitant Hydrazine Formation.” Xuefeng Gao, Carissa S. Hampton and Michael Harmata. European Journal of Organic Chemistry 2012, 7053-7056.
“C–N Bond Forming Reactions of Sulfonamides, Sulfoximines, and Other Nitrogen Nucleophiles.” J. Duan, H. Chen, Xuechuan Hong and Michael Harmata. Science of Synthesis 2012, 2, 255-282.
“Tröger's Base Twisted Amides: Endo Functionalization and Synthesis of an Inverted Crown Ether.” Kenneth Wärnmark, Victor Snieckus, Victor; Michael Harmata, Josep Artacho, Erhad Asic, Toni Rantanen, Carl-Johan Wallentin, Sami Dawaigher and Karl-Erik Bergquist. Organic Letters 2012, 14, 4706-4709.
“C-H Activation in S-Alkenyl Sulfoximines: An Endo 1,5-Hydrogen Migration” Xuefeng Gao, Vikram Gaddam, Erich Altenhofer, Rama Rao Tata, Zhengxin Cai, Nattawut Yongpruksa, Aswin K. Garimallaprabhakaran and Michael Harmata. Angewandte Chemie International Edition 2012, 51, 7016-7019.
“Total Synthesis of the Terpenoid Buddledone A: 11-Membered Ring-Closing Metathesis.” Zhengxin Cai, Nattawut Yongpruksa and Michael Harmata. Organic Letters 2012, 14, 1661–1663.
“Formation of a Benzothiazine via the Reaction of ortho-halo Sulfoximines with Copper Salts.” Aswinkumar Garimallaprabhakaran, Xuechuan Hong and Michael Harmata. ARKIVOC 2012, 119-128.
“Twisted Amide Analogues of Tröger’s Base.” Josep Artacho, Erhad Ascic, Toni Rantanen, Josefine Karlsson, Carl-Johan Wallentin, Ruiyao Wang, Ola F. Wendt, Michael Harmata, Victor Snieckus and Kenneth Wärnmark. Chemistry A European Journal 2012, 18, 1038-1042.