Allen Schoffstall

Dr. Allen Schoffstall

Dr. Allen Schoffstall


Chemistry and Biochemistry Department

CENT 240

Work : (719) 255-3163


  • Franklin and Marshall College, Chemistry, B.S., 1960
  • State University of New York (Buffalo), Organic Chemistry, Ph.D., 1966
  • State University of New York (Buffalo), Organic Chemistry, Post-doctoral; 1965-1966
  • University of Illinois (Urbana), Organic Chemistry, NIH Fellow, 1966-1967

Appointments (all in Departments of Chemistry)

  1. University of Colorado (UCCS) Professor, 1977-; Asst-Assoc. Prof., 1967-1977
  2. Emory University, Atlanta, GA Visiting Professor, 1987-1988; 1989-1990
  3. University of Virginia, Charlottesville, VA, Visiting Professor, 1977
  4. University of Maryland, College Park, MD Visiting Associate Professor, 1975-76

Publications (1989-Present)

  1. Mendes, D. E.; Schoffstall, A.M., Synthesis of terminal alkynes by decarboxylation of 2-alkynylcarboxylic acids, submitted to Tetrahedron.
  2. Canaria, J. A., Schoffstall, A.M., Weiss, D.J., Henry¥, R. M., Braun-Sand¥ , S.B. “A model for an introductory undergraduate research experience", submitted to J. Chem. Educ., under revision.
  3. Mendes, D. E.; Schoffstall, Citrus peel additives for one-pot triazole formation by decarboxylation,nucleophilic substitution, and azide-alkyne cycloaddition reactions, J. Chem. Educ. 2011, 88, 1582–1585.
  4. Gaddis, B.A. ; Schoffstall, A.M., Incorporating guided inquiry learning into the organic chemistry laboratory, J. Chem. Educ. 2007, 84, 848-851.
  5. Schoffstall, A.M., Gaddis, B.A., Druelinger, M.L. Microscale and Miniscale Organic Chemistry Laboratory Experiments, McGraw-Hill, Boston,2000, 612 pp., 1 st Ed., ISBN 0-07-237549-3; 2004, 659 pp., 2nd Ed., ISBN 0-07-242456-7.
  6. Schoffstall, A.M., Gaddis, B.A., and Pitman, C.S., Instructor’s Manual and Answer Book for Microscale and Miniscale Organic Chemistry Laboratory Experiments, McGraw-Hill, Boston, 2000, 245 pp., 1 st Ed., ISBN 0-697-41603-8; 2004, 270 pp., 2nd Ed., (online) at
  7. Padwa, A., Chiacchio, U., Garreau, Y., Kassir, J., Krumpe, K.E., and Schoffstall, A.M., Carbonyl ylide cyclizations, J. Org. Chem., 1990, 55, 414-416.
  8. Padwa, A.; Schoffstall, A. M. Intramolecular 1,3-dipolar cycloaddition chemistry Advances in Cycloaddition, Volume 2 1990, 1-89.
  9. Padwa, A., Dent, W., Yeske, P.E. and Schoffstall, A.M., Silyl transfer reactions, J. Org. Chem., 1989, 54, 4430-4437
  10. 10. Padwa, A., Chiacchio, U., Dean, D., Schoffstall, A.M., Hassner, A. and Murthy, K.S.K., Conversion of functionalized alcohols into tetrahydrofurans, J. Org. Chem., 1989, 54, 5277-5286.

Scholarly Presentations (2007-2011)

  1. Benner, Crystal R.; Schoffstall, A. M. Kinetic study of the reaction of trichloroisocyanuric acid with phenylpropiolic acid Abstracts of Papers, 242nd ACS National Meeting & Exposition, Denver, CO, August 28-September 1, (2011), CHED-226.
  2. Schoffstall, A. M.; Zimmerman, J.; Mendes, D. E.; Benner, C.; Breitmeyer, B. NMR spectroscopy in the general chemistry laboratory Abstracts of Papers, 242nd ACS National Meeting & Exposition, Denver, CO, August 28-September 1, (2011), CHED-89.
  3. Nguyen, H. A.; Schoffstall, A. M. Fluorinated 1,5-disubstitued 1,2,3-triazoles Abstracts of Papers, 241st ACS National Meeting & Exposition, Anaheim, CA, March 27-31, 2011, CHED-1024.
  4. Robertson, W. A.; Knobbe, K. A.; Levulis, S.; Schoffstall, A. M. Synthesis of 1,4-disubstituted triazole derivatives using click chemistry Abstracts of Papers, 241st ACS National Meeting & Exposition, Anaheim, CA, March 27-31, 2011, CHED-1007.
  5. Schoffstall, A. M.; Ruminski, R. R.; Benner, C. R.; Mendes, D. E.; Breitmeyer, B. M. Guided inquiry experiments with Fourier Transform NMR spectroscopy Abstracts of Papers, 241st ACS National Meeting & Exposition, Anaheim, CA, March 27-31, 2011, CHED-20.
  6. Mendes, D.E. and Schoffstall, A. M., Reactions of 2-alkynylcarboxylic acids and terminal alkynes, 240th ACS Meeting, Boston MA, August 2010, ORGN 209
  7. Schoffstall, A. M., Braun-Sand, S., Henry, R. M., Weiss, D. J. and Canaria, J. A.; Collaborative undergraduate research methods course, 240th Natl.ACS Meeting, Boston MA, August, 2010, CHED 69
  8. Schoffstall, A., M., Orchestrating the undergraduate research experience, 239th National ACS Meeting, San Francisco, CA, March, 2010, YCC Paper 12
  9. Benner, C. R., Schoffstall. A. M., Mechanism of reaction of bleach with phenylpropiolic acid derivatives, 239th National ACS Meeting, San Francisco, CA March 2010, CHED 1181
  10. Lopez, A. F.; Schoffstall, A. M., Halogenation of phenylacetylene, 239th National ACS Meeting, San Francisco, CA March 2010, CHED 1173
  11. Schoffstall, A. M., Gaddis, b. A., Stark, C. A., Benefits of undergraduate research, 239th National ACS Meeting, San Francisco, CA March 2010, CHED 153
  12. Schoffstall, A.M., Coordinating and operating the undergraduate research experience, 237th ACS National Meeting, Salt Lake City, March 22-26, 2009, YCC Paper #24.
  13. Schoffstall, A. M., Gaddis, B. A., Padilla, R. and Horner, S. M., Evaluating the effects of the undergraduate research experience, 236th ACS National Meeting, Phila., PA, August, 2008, Paper 105, CHED division.
  14. Hirsch, T. A., Schoffstall, A.M., Decarboxylation reactions with alkyne acid derivatives, 235th ACS National Meeting, New Orleans, LA, April, 2008, Paper 627, CHED division
  15. Mendes, D. E. and Schoffstall, A.M., Azide Cycloaddition Reactions, Joint Rocky Mountain Regional ACS/AIChE Meeting, Denver, CO, August 29-31, 2007, Paper 50, ORG division.
  16. Anciaux, D. and Schoffstall, A.M., Copper (I)-catalyzed synthesis of 1,2,3-triazoles by cycloaddition, 233rd National ACS Meeting, Chicago, IL, March 25-29, 2007, Paper 546, CHED division.


  • Anderson, David. R., Department of Chemistry, UCCS
  • Asirvatham, Margaret, Department of Chemistry, UC Boulder
  • Braun-Sand, Sonja, Department of Chemistry, UCCS
  • Druelinger, Melvin L., Department of Chemistry, Colorado State University-Pueblo
  • Gaddis, Barbara A., Science Learning Center and Recruitment/Retention, UCCS
  • Henry, Renee, Department of Chemistry, UCCS
  • Kalita, Jugal, Dept. of Electrical and Computer Engineering, UCCS
  • Kresheck, Gordon, Department of Chemistry, UCCS
  • Owens, Janel, Department of Chemistry, UCCS
  • Padwa, A. Department of Chemistry, Emory University,
  • Ruminski, Ronald R., Department of Chemistry, UCCS
  • Staley, Constance, Department of Communication, UCCS
  • Undergraduate and Graduate UCCS Student Collaborators on Laboratory Projects
  • Weiss, David, Department of Chemistry, UCCS
  • Wilkes, John, Department of Chemistry, US Air Force Academy

Current Grants

  1. Merck Foundation grant for interdisciplinary research, 2009-2012, $60,000.00, Co-PI: Students rotate through the research laboratory and experience an original synthetic project.
  2. Guided Inquiry NMR Project, NSF, ends in 2012, $149,431.00, PI of the project, including development of a lab experiment for Chem. 1060 (Oil of Wintergreen) and an experiment for Chem. 3380 (epoxide project) with the assistance of B. Breitmeyer and D. Mendes. See:

Pending Grant (NSF)

1156932 Research Experience for Undergraduates: Green Chemistry in Colorful Colorado Pending Co-PI 08/25/2011 08/24/2011 submitted $356,589.00

Committee Service

  • College: EAS Dean’s Review Committee, 2011-2012
  • University: Graduate Executive Committee Nelson 2011-2012
  • College: Honors Program Advisory Committee Hackman Spring 2010
  • University: Intercollegiate Athletic Advisory Committee: Interim chair, 2011-2012
  • University: New Program Review Committee, 2011-2012
  • Department: Primary Committee Chair for Dr. Sonja Braun-Sand, Feb-March 2010
  • University: University Budget Advisory Committee; Chair for Spring 2011 and Spring 2012
  • College: College Budget Advisory Committee, 2011-2012
  • Department: Department Assessment report coordinator, 2010-2011
  • Department: Chemistry Graduate Program Director 2011-2012
  • Department: Thesis committee chair, Ms. Desiree M. Mendes, May, 2011.
  • University: Mentoring faculty: Dr. Genya Killian, Biology, co-mentor
  • University: Admissions Department student adviser search committee, 2011-2012.
  • University: Online programs coordination committee, 2011

Serving as Research Adviser-2010-2011

  • Al Marle III, Bachelor’s, Senior, 1,4-Triazoles, Fall, 2010
  • Amy Sylvester, Bachelor’s, Junior, Triazole synthesis using additive reductants, Summer and Fall, 2010
  • Brian Litch, Bachelor’s, Senior, Chloroalkyne synthesis (CSURF presenter), Spring 2010
  • Christina Stark, Master’s, Polyene syntheses using Grignards, Spring and Fall, 2010
  • Crystal Benner, Bachelor’s, Junior, TCICA reaction with propiolic acids, (National ACS presenter, San Francisco. 2010
  • Desiree Mendes, Master’s, Triazole synthesis and decarboxylation of alkynoic acids using Cu catalysis (Regional ACS presenter, Spokane), 2010
  • Erin Barnett, Master’s, 1,4-Triazoles, 2010-2011
  • Huy Nguyen, Bachelor’s, Senior, 1,5-Triazoles, 2010
  • Kirstin Knobbe, Bachelor’s, Senior, Diubstituted and fluorinated triazoles, 2010-2011
  • Roberto Padilla, Bachelor’s, Junior, Isoxazoline synthesis, Spring and summer 2010
  • Seth Levulis, Bachelor’s, Senior, Triazole preparations Spring 2010
  • Susan Wilds, Master’s, Triazole synthesis Summer and Fall, 2010
  • Wes Robertson, umclassified Graduate, Triazoles with fluorine substituents, 2010-2011
  • Joann Mueller, Merck scholar, hydroxylated triazoles via decarboxylation, 2011
  • Marcus Calvin, Merck scholar, triazoles via decarboxylation, 2011
  • Brayden Hamill, Merck scholar, triazole synthesis, 2011
  • Stephanie Kirchoff, triazole synthesis, 2011
  • Wynne Reis, triazole synthesis, 2011