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Graduate Students
Tamas Benkovics

A native of Hungary, Tamas received his BS in Chemistry from Colorado State University in 2003. During college, he worked on peptide chemistry at Global Peptide Services. After graduation, Tamas worked in process development at Amgen in Thousand Oaks, CA. Outside of chemistry, you can find Tamas chasing walleyes in Lake Mendota, learning to cook without a microwave oven or traveling with his wife.

Juana Du

Juana grew up in San Francisco, CA and received her BS in chemistry from the University of California, Berkeley in 2007. While at Berkeley she conducted undergraduate research probing the mechanistic aspects of heteroatom-substituted cyclopropanes with a cationic iridium species in the laboratory of Prof. Robert Bergman. In the moments when chemistry is not at the forefront of her agenda, Juana enjoys watching snowflakes fall while sipping on hot chocolate, listening to jokes that make people laugh, or curling up with a good book.

Olga Dykhno

A native of Russia, Olga graduated from the University of Texas at Austin in 2007. As an undergraduate, she worked with Chris Bielawski on the synthesis and applications of N-heterocyclic carbene-based metallo polymers as reusable catalysts in C-C bond forming reactions. After graduation, Olga worked in analytical method development at PPD in Madison, WI. In her free time Olga unashamedly enjoys watching Oxygen and Lifetime movies.

Anna Hurtley

Anna grew up in Saint Paul, MN and received her B.A. in chemistry from Northwestern University in 2008. As an undergraduate, she worked with Joseph Lambert, studying hydrogen bond effects in the conformational isomerism of cyclohexanediols by NMR spectroscopy. She also spent a summer at UCSF with John Gross, studying protein complexes involved in the regulation of mRNA decapping. She spends her free time exploring Madison and enjoying the outdoors.

Michael Ischay

Michael received his B.S. from Indiana University under the direction of Prof. Dennis Peters in 2006. As an undergraduate, he studied the catalytic reduction and intramolecular cyclization of haloalkynes in the presence of electrogenerated Nickel(I) salen. Shortly after graduation, he moved to Madison and joined the Yoon group where he started working on the aminohydroxylation of conjugated dienes. He has more recently been focusing on visible-light photocatalysis.

David Michaelis

David received his BS in chemistry from Brigham Young University in 2005. As an undergraduate, he worked with Dr. Paul Savage on the synthesis and characterization of fluorescent metal-ion chemosensors. In the Yoon Laboratory, David has worked on the development of a copper(II)-catalyzed aminohydroxylation reaction that employs oxaziridines as the terminal oxidant. During the Summer of 2008, David also completed an industrial internship at Amgen in Cambridge, MA. All of David's free time is spent with his wife Tanya and 3 daughters Callie (4), Alyssa (2), and Haven (6 months). They enjoy reading together, hiking, gardening, and making animal noises (Callie especially).

Katie Partridge

Raised in South Carolina and Virginia, Katie received her B.S in chemical engineering from Virginia Tech (Go Hokies!) in 2004. As an undergraduate student, Katie was a co-op engineer with DuPont textile and interiors and undergraduate researcher in the lab of Dr. Kevin Van Cott. As a graduate student, her research focuses on the Lewis acid catalyzed formation and cycloaddition of N-sulfonyl nitrones derived from oxaziridines. Outside of lab, Katie enjoys sailing on the lovely Lake Mendota and road biking in the country surrounding Madison when the weather permits. She is proud to be a Kohler fellow and Knapp House resident

Liz Tyson

Liz went to school in Seattle, graduating with a BS in chemistry in 2008. She worked under Dr. PJ Alaimo synthesizing beta-amino esters and 2,3-dihydropyridinones in one-pot domino reactions. At UW-Madison, she is investigating heterogenious catalysis. When not in lab she enjoys making up recipes for soup, baking, making & drinking coffee, rearranging her furniture and hanging out with her cat, Rubipy.

Kevin Williamson

Kevin Williams received his BS in Chemistry from University of Texas at Austin in 2007. He did undergraduate research first with Prof. Ben Liu as a sophomore and then with Prof. Philip Magnus as a junior and senior. His senior project was on the synthesis of the aniline portion of Platensimycin.





Undergraduate Students
Sandra DePorter

Andrew Kohrs

Amanda Turek

Tyler VanDyck




Principal Investigator
Tehshik Yoon

Tehshik grew up in Blacksburg, VA. He received his bachelor's degree in chemistry from Harvard University, where he performed undergraduate research with Prof. David Evans, and his master's degree from Caltech under the supervision of Prof. Erick Carreira. His Ph.D. thesis with Prof. David MacMillan, first at Berkeley and then at Caltech, focused on the development of chiral Lewis acids for enantioselective Claisen rearrangements. After finishing graduate school in 2002, he became an NIH postdoctoral fellow in the laboratory of Prof. Eric Jacobsen at Harvard, where his research involved the development of a hydrogen bond-donating catalyst for asymmetric nitro-Mannich reactions. Tehshik has been on the faculty at UW-Madison since July 2005.

Official faculty profile page




Group Alumni
Dr. Meihua Shen
Mary Beth Anzovino Graduate Student, University of Wisconsin-Madison
Charlie Allen Technical Writer, Epic Systems, Madison, WI
Ashley Jacobsen Research associate, Bristol-Myers Squibb, Wallingford, CT
Justin Woods Research chemist, Tate & Lyle, Decatur, IL
Alex Khrizman
Chris Shaffer Graduate Student, University of Wisconsin-Madison
Drew Dorshorst Graduate Student, University of California-Irvine
Jeffrey Kokott Medical Student, Rosalind Franklin University of Medicine & Science