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Dr. Cynthia Kellen-Yuen

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ACS (American Chemical Society)

 

Dr. Cynthia Kellen-Yuen

Courses | Research Projects | Papers and Publications| Masters' Theses | Presentations

Contact Information
Title: Professor
E-mail: ckyuen@csus.edu
Office
Hours:

M,T,W: 12:15 -1:15 pm or by appointment (Zoom hours also available upon request)
Office TSC 2013
Office
Phone:		 (916) 278-3528
Mailing
Address:		 Sacramento State
6000 J Street
Sacramento, CA 95819-6057

Current Courses

  • Chem 25 Organic Chemistry lab
  • Chem 294 Chemistry Seminar
  • Chem 198 Senior Research

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Research Projects/Interests

  • Microwave Assisted Organic Synthesis (MAOS) directed towards the improved synthesis of a variety of heterocyclic compounds, including imidazoles, triazoles, dihydroquinoxalinones, and quinoxalinones
  • Chiral MAOS in natural product synthesis
  • Greener synthetic approaches to biologically active heterocycles
  • Tandem cyclization reactions in the synthesis of azaheterocyclic compounds such as quinoxalinols, imidazotriazolones, and triazolopyrimidinones
  • Design and Development of Greener experiments for the undergraduate teaching labs

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Papers and Publications (undergraduate co-authors underlined)

  • Kellen-Yuen, C.; Roush, Cathleen. “Synthesis of 1,2,3-Triazoles:  A Green, Microwave-Assisted Experiment for the Organic Teaching Lab" Ed.Chem. 2007, 44(3), 86-88.
  • Martin, Eric; Kellen-Yuen, Cynthia.  “Microwave-assisted organic synthesis in the organic teaching lab:  A simple, greener Wittig reaction” J. Chem. Ed.  2007, 84(12), 2004-2006.
  • Collman, J. P.; Lee, V. J.; Kellen-Yuen, C. J.; Zhang, X.; Ibers, J. A.; Brauman, J. I. “Threitol-Strapped Manganese Porphyrins as Enantio-selective Epoxidation Catalysts of Unfunctionalized Olefins" J. Am. Chem. Soc.  1995, 117, 692-703.
  • Clark, M.; Kellen-Yuen, C. J.; Robinson, K. D.; Zhang, H.; Yang, Z.-Y.; Madappat, K. V.; Fuller, J. W.; Atwood, J. L.; Thrasher, J. S. ""Naked" pentafluorosulfate (1-) anion: the crystal and molecular structure of [Cs+·(18-crown-6)2][SF5-]." Eur. J.  Solid State Inorg. Chem.  1992, 29(4-5), 809-33.

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Masters' Thesis Projects

  • Shah, Hiral. "Exploring the Mechanism of Formation of 1H-Quinoxalin-2-one and the Syntheses of Benzimidazole and 1,5-Benzodiazepine-2,4-dione Derivatives" completed May, 2022.
  • Emery, R. Todd. “An Investigation of a One-pot Synthesis and Selectivity of 3,4-Dihydroquinoxalin-2(1H)-one and 1H-Quinoxalin-2-one Derivatives" completed May, 2016.
  • Thao, Lou. “Tandem Reactions of 3-Amino-1,2,4-triazole with trans-Cinnamoyl Chloride and trans-Crotonyl Chloride" completed November, 2015.
  • Roush, Cathleen. “Uncatalyzed Microwave Synthesis of Simple and Bis 1,2.3-Triazoles" completed May, 2011.
  • Goodwin, Karen. "Development of a Greener Synthesis of Lidocaine" completed May, 2009.
  • Rahbarnia, Shohreh. “Synthesis and Purification of Novel 3,5-Disubstituted Tetraphenyl Porphyrins" completed August, 2003.

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Presentations (undergraduate co-authors underlined)

  • Jonathan Martinez-Aguirre, Cynthia Kellen-Yuen, “Exploration of Solvent and Substituent Effects in the Synthesis of Quinoxalinones” 32nd Annual Northern California Undergraduate Research Symposium, May 4th, 2023, Moraga, CA
  • Yulia Kunisovskaya, Cynthia Kellen-Yuen, “Microwave-Assisted Reaction of 3-Amino-1,2,4-Triazole with Cinnamoyl Chloride,” 31st Annual Northern California Undergraduate Research Symposium, May 4th, 2019, Santa Clara, CA.
  • Pavel Mudrenko, Cynthia Kellen-Yuen, “Synthesis of Bicyclic Derivatives of 3-Amino-1,2,4-triazole: Standard vs. Microwave Approaches,” Student Research & Creative Activity Fall Forum, November 9th, 2018, Sacramento, CA.
  • Michell Villa, Cynthia Kellen-Yuen, “Exploration of the Microwave Synthesis of 3,4-Dihydro-1H-quinoxalin-2-one,” 30th Annual Northern California Undergraduate Research Symposium, April 28th, 2018, Oakland, CA.
  • Lynda Flores-Graham, Cynthia Kellen-Yuen, “Synthetic investigations of 3,4-dihydroquinoxalin-2(1H)-one and quinoxalin-2(1H)-one under varied experimental conditions,” 29th Annual Northern California Undergraduate Research Symposium, May 6th, 2017, San Jose, CA.
  • Todd Emery, Jaclyn Kurttila, Cynthia Kellen-Yuen, “A Tandem Reaction: 3-Amino-1,2,4-Triazole and Ethyl Acetoacetate,” American Chemical Society 250th National meeting, August 15-19, 2015, Boston, MA.
  • Amarachi Okemiri, Cynthia Kellen-Yuen, “Microwave Assisted Synthesis of Biodiesel:  Methodology and Characterization,” 24th Annual Northern California Undergraduate Research Symposium, April 28th, 2012, Oakland, CA.
  • Daniel Vasilchuk, Cynthia Kellen-Yuen, “Computational and experimental study of reductive amination of modified Ritter reaction products,” American Chemical Society 240th National meeting, August 22-26, 2010, Boston, MA.
  • Joel Rivera-Pallares, Cynthia Kellen-Yuen, “Tandem cyclization reactions utilizing 3-amino-1,2,4-triazole,” 22nd Annual Northern California Undergraduate Research Symposium, May 8th, 2010, Sacramento, CA
  • Daniel Vasilchuk, Cynthia Kellen-Yuen, “A Study of Substituent Effects on a Modified Ritter Reaction,” 22nd Annual Northern California Undergraduate Research Symposium, May 8th, 2010, Sacramento, CA.
  • Joel Rivera-Pallares, Cynthia Kellen-Yuen, “Tandem cyclization reactions utilizing aminotriazole,” American Chemical Society 239th National meeting, March 21-25, 2010, San Francisco, CA.
  • Daniel Vasilchuk, Cynthia Kellen-Yuen, “Study of substituent effects on a modified Ritter reaction,” American Chemical Society 239th National meeting, March 21-25, 2010, San Francisco, CA.
  • Conrad, Wayne; Cooper, Jason; Noriega, Lindsay; Kellen-Yuen, Cynthia.  "A Greener Synthesis of 3-Aryl-2-Carbethoxy-4-Methylpyrroles," 42nd Western Regional ACS Meeting, Sept 22nd, 2008, Las Vegas, NV.
  • Cooper, Jason; Conrad, Wayne; Noriega, Lindsay; Kellen-Yuen, Cynthia.  "Green Synthesis of Substituted Phenyl Pyrroles:  Treatment of Human Breast Cancer Cells In Vitro," 20th Annual Northern California Undergraduate Research Conference, May 3rd, 2008, Santa Clara, CA.
  • Noriega, Lindsay; Cooper, Jason; Conrad, Wayne; Kellen-Yuen, Cynthia.  "Microwave Henry Reactions:  An investigation of Substitutent Effects on Arylaldehydes," 20th Annual Northern California Undergraduate Research Conference, May 3rd, 2008, Santa Clara, CA.
  • Conrad, Wayne; Cooper, Jason; Noriega, Lindsay; Kellen-Yuen, Cynthia.  "A Greener Synthesis of 2-Carbethoxy-4-Methyl-3-Arylpyrroles," 20th Annual Northern California Undergraduate Research Conference, May 3rd, 2008, Santa Clara, CA.
  • Goodwin, Karen; Kellen-Yuen, Cynthia.  “Fischer esterification by microwave irradiation: A simplified technique for the undergraduate organic chemistry laboratory,” American Chemical Society 232nd National meeting, September 10-14, 2006, San Francisco, CA.
  • Jill Dickhoff, Cynthia Kellen-Yuen, “Microwave synthesis of 3,4-disubstituted-1-H-pyrrole-2-carboxylates,” oral presentation, 18th Annual Northern California Undergraduate Research Conference, May 6th, 2006, San Jose, CA.
  • Karen Goodwin, Cynthia Kellen-Yuen, “Fischer Esterification by Microwave Irradiation – A Simplified Technique for the Undergraduate Organic Chemistry Laboratory,” 18th Annual Northern California Undergraduate Research Conference, May 6th, 2006, San Jose, CA.
  • Kellen-Yuen, Cynthia; Raikevitch, Cathleen. “Microwave Chemistry as an Approach to Discovery-Based Synthesis in the Organic Laboratory” presented at the Curricular Innovations in Green Chemistry: Organic and Beyond seminar held during the American Chemical Society 231st National meeting, March 26-30th, 2006, Atlanta, GA.
  • Roush, Cathleen; Kellen-Yuen, Cynthia.  “Green synthesis of substituted 1,2,3-triazoles” American Chemical Society 231st National meeting, March 26-30th, 2006, Atlanta, GA.
  • Dickhoff, Jill; Hoeltje, Nathan; Kellen-Yuen, Cynthia.  “Microwave synthesis of 3,4-disubstituted-1-H-pyrrole-2-carboxylates” American Chemical Society 231st National meeting, March 26-30th, 2006, Atlanta, GA.
  • Martin, Eric; Kellen-Yuen, Cynthia.  “Microwave Wittig: a rapid, green method for the synthesis of aromatic alkenes” American Chemical Society 231st National meeting, March 26-30th, 2006, Atlanta, GA.
  • Nathan Hoeltje, Cynthia Kellen-Yuen, “Green Syntheses of 3,4-Disubstituted 2-Carbethoxy Pyrroles” 17th Annual Northern California Undergraduate Research Conference, April 30th, 2005, Oakland, CA.
  • Cathleen Raikevitch, Cynthia Kellen-Yuen, “The Solvent-free Synthesis of 4,5-disubstituted-1,2,3-triazoles with Microwave Irradiation” 17th Annual Northern California Undergraduate Research Conference, April 30th, 2005, Oakland, CA.
  • Cynthia Kellen-Yuen, Cathleen Raikevitch “Microwave Chemistry as an Approach to Discovery-Based Synthesis in the Organic Laboratory” 39th Western Regional ACS Meeting, Oct 30th, 2004, Sacramento, CA.
  • Bruce K. Ford, Cynthia Kellen-Yuen, “The Solvent-free Synthesis of 3,4- Disubstituted Pyrrole Carboxylates” oral presentation, Northern California Undergraduate Research Conference, May 8th, 2004, San Francisco, CA.

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Last updated: 8/15/2022