Andrew R. Ehle, Ph.D.

Dr. Andrew Ehle is a research chemist with a strong background in methodology development. He is well-versed in writing technology transfer documents, patents and other technical documents. Dr. Ehle's experience also spans several sub-disciplines, including the synthesis of complex intermediates, characterization of compounds and purification of organic and organometallic compounds. His graduate thesis focused on the efficient formation of carbon-carbon bonds via the functionalization of carbon-oxygen bonds.

Prior to joining the firm, Dr. Ehle worked as a postdoctoral fellow in the Department of Engineering at Virginia Commonwealth University. There, his work focused on the development of an improved synthesis of potent anti-HIV drugs, as well as the advancement of a continuous reactor process towards hydroxyl propyl adenine, a key component in many anti-HIV drugs.


  • Invited Contribution to Special Edition, Synlett, 2015
  • University of Delaware Professional Development Award, 2014
  • Top 10 Most-Read Papers, Organic Letters, 2012
  • Order of the Arrow Award, Boy Scouts of America, 2003

Professional Affiliations

  • Member, American Chemical Society, Organic Chemistry Division, 2005-Present
  • Member, Student Invited Seminar Committee, 2011-2015

Community Involvement

  • Boy Scouts of America, Volunteer Leader, 2005 – Present
  • Delaware State Park System, Volunteer Member, 2012-2014


  • Ehle, Andrew R.; Morris, Melissa; Kelbon, Bryan; Yap, Glenn; Watson, Mary P., “Stereoselective Synthesis of Trisubstituted Vinyl Bromides via Addition of Alkynes to Oxocarbenium Ions”, Synlett, 2015, 26(19), 2702-2706
  • Ehle, Andrew R.; Zhou, Qi; Watson, Mary P., “Nickel(0)-Catalyzed Heck Cross-Coupling via Activation of Aryl C-OPiv Bonds,” Organic Letters, 2012, 14(5), 1202-1205
  • Eddy, Jennifer W.; Davey, Evan A.; Malsom, Richard D.; Ehle, Andrew R.; Kassel, Scott; Goodson, Felix E., “Palladium Complexes with Aqueous Partitioning Dibenzylideneacetone Ligands: A New Strategy for Catalyst Design in Suzuki Polycondensation Reactions,” Macromolecules, 2009, 42(22), 8611-8614


  • Co-Speaker, Formation of Highly Substituted Vinyl Bromides, 247th ACS National Meeting, March 2014
  • Co-Speaker, Nickel-Catalyzed Heck Cross-Couplings via Activation of Strong C-O Bonds, 43rd Middle Atlantic Regional Meeting of the American Chemical Society, May-June 2012
  • Co-Speaker, Nickel-Catalyzed Heck Cross-Couplings via Activation of Strong C-O Bonds, ACS National Meeting, August 2012
  • Co-Speaker, DiaryInorbornadiene Derivatives: Synthesis and Initial Photochemical Studies, 236th ACS National Meeting, August 2008
Photo of Andrew R. Ehle, Ph.D.
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David Stein


University of Delaware, Ph.D., Organic Chemistry, 2014

West Chester University of Pennsylvania, B.A., Chemistry, 2009