Graduate Teaching Assistant
Resume:
David's InformationLocation: Knoxville, TNTitle: Graduate Teaching AssistantWilling to Relocate: NoMember Since: 2012-06-06
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The University of Tennessee
Chemistry Department
EDUCATION
The University of Tennessee, TN, 2008-2012 (Graduation August 15, 2012)
Ph.D. Organic Chemistry
GPA: 3.68/4.00
The University of Tennessee, TN, 2004-2006
Graduate Chemistry Program
The University of Virginia's College at Wise, Wise, VA, 1999-2004
Bachelor of Arts, Chemistry
Minor: Biology
Teaching Endorsement: Chemistry/Biology, Grades 6-12
GPA: 3.33/4.00
Honors: Dean's list six semesters, Named to Darden Society.
Mountain Empire Community College, Big Stone Gap, VA, 1987-1989
A.A.S. Drafting and Design
GPA: 2.96/4.00
TEACHING EXPERIENCE
Graduate Teaching Assistant:
Organic Chemistry Laboratory, University of Tennessee,
2009-Present.
Present pre-lab instructions to twenty undergraduate students, demonstrate
laboratory techniques, and explain safety guidelines.
Teach and supervise students during organic chemistry laboratories.
Administer exams, grade
student
lab reports and exams.
Maintain office hours for individual meetings with students.
Graduate Teaching Assistant:
General Chemistry, University of Tennessee, 2008-2009.
Taught general chemistry concepts and skills, and demonstrated problem solving
techniques.
Instructed and supervised twenty four undergraduate students during laboratory
experiments.
Provided tutoring for general chemistry students.
Assisted in the administration of tests and exams.
Graded tests, quizzes, and lab reports.
Teacher:
Chemistry/Biology, Dickenson County Public Schools, Clintwood, VA, 2006-
2008.
Taught high school chemistry and biology courses.
Adhered to the Virginia Standards of Learning guidelines to develop class
content.
Provided hands on learning opportunities to increase student understanding of
scientific concepts.
Utilized creative teaching methods to maintain student engagement.
Served as a Partnership for Academic Competition Excellence (PACE) coach.
Graduate Teaching Assistant:
General Chemistry, University of Tennessee, 2004-2006.
Taught general chemistry concepts and skills, and demonstrated problem solving
techniques.
Instructed and supervised twenty four undergraduate students during laboratory
experiments.
Provided tutoring for general chemistry students.
Assisted in the administration of tests and exams.
Graded tests, quizzes, and lab reports.
Teaching Intern:
General Chemistry, J.J. Kelly High School, Wise, VA, 2003
In collaboration with the teacher, instructed tenth, eleventh, and twelfth grade
high school students in general chemistry.
Designed
and administered tests to measure student understanding.
Assigned class-work and homework to reinforce student learning.
Graded assignments and tests.
RESEARCH EXPERIENCE
Doctoral Research:
Department of Chemistry, University of Tennessee, 2008-Present
Thesis:
Select Reactions of Organotrifluoroborates and Organostannanes.
Research
Advisor: Dr. George W. Kabalka
Halodeboronation of potassium aryl- and alkenyltrifluoroborates using trihalide
salts.
A variety of potassium alkenyl- and aryltrifluoroborates were
evaluated in halodeboronation reactions using pyridinium
tribromide, cesium triiodide, or sodium iodide/iron trichloride.
Organotrifluoroborates were synthesized from the corresponding
organoboronic acids using literature procedures and characterized
by
11
B NMR.
All reactions were followed by thin layer chromatography. The
products were purified by column chromatography or extraction
techniques.
Products were characterized using
11
B-NMR,
H-NMR,
13
C-NMR,
IR, and GC/MS.
The synthesis of (Z)-1,2-dibromoalkenes from stereo-defined alkenyl-
ditrifluoroborates.
Stereo-defined potassium alkenylditrifluoroborates were
synthesized by the diborylation of alkynes using the literature
procedure followed by reaction of the diboryl alkenes with
potassium hydrogen fluoride. The Potassium alkenyl-
ditrifluoroborates were evaluated in bromodeboronation reactions
using tetrabutylammonium tribromide.
All reactions were followed by thin layer chromatography. The
products were purified by column chromatography, extraction
techniques, or distillation.
Products were characterized using
11
B-NMR, 1D or 2D
H-NMR,
13
C-NMR, IR, GC/MS, HRMS, X-ray diffraction, or elemental
analysis.
Iron(III) Chloride, zinc, and zinc oxide promoted hydrolysis of potassium aryl-,
alkenyl-, and alkyltrifluoroborates.
A variety of functionally substituted potassium aryl-, alkenyl-, and
alkyltrifluoroborates were evaluated in hydrolysis reactions using
iron trichloride, zinc dust, or zinc oxide.
The boronic acid products were isolated by extraction techniques or
by filtration through a small amount of neutral alumina.
Products were evaluated using
11
B-NMR,
H-NMR, and
13
C-NMR.
Halodestannation of tributyl(aryl)stannanes.
A variety of tributyl(aryl)stannanes were synthesized from literature
procedures and evaluated in iododeboronation reactions using
sodium iodide/iron chloride.
All products were purified using column chromatography.
Products were evaluated using
H-NMR,
13
C-NMR, HRMS.
Instrumentation and equipment used:
Bruker AC 250 MHz NMR, Bruker Avance 400MHz NMR, Varian
Mercury Vx 300 MHz NMR, Varian VNMRS 500 MHz NMR, Hewlett
Packard: HP 6890 series GC System with 5973 Mass Selective
Detector, JEOL AccuTOF DART Mass Spectrometer, APEX II X-
Ray Diffractometer, Thermo Scientific Evolution 600 UV-Vis, Varian
4100 FT-IR, CEM Discover Microwave, high vacuum pump, rotary
evaporator, analytical balance, Thermowatch temperature
controller, standard organic glassware, vacuum oven, oven,
microliter syringes, desiccator, hot plate, fume hood, and argon.
ADDITIONAL RESEARCH EXPERIENCE
Worked at UT in the research group of Dr. Peter Zhang, assistant professor of
inorganic chemistry, for two semesters.
PUBLICATIONS AND PRESENTATIONS
Yao, M.;
Blevins, D. W.
; Reddy, M. S.; Yong, L.; Kabalka, G. W. Halodeboronation of
Organotrifluoroborates Using Tetrabutylammonium Tribromide and Cesium Triiodide.
Tetrahedron,
2012,
68:19,
3738-3743.
Blevins, D. W.
; Yao, M.; Yong, L. Iron Trichloride Promoted Hydrolysis of Potassium
Organotrifluoroborates.
Tetrahedron Letters
2011,
52, 6534-6536.
Yao, M.; Reddy, M. S.; Yong, L.; Walfish, I.;
Blevins; D. W.
; Kabalka, G. W.
Chemoselective Bromodeboronation of Organotrifluoroborates Using
Tetrabutylammonium Tribromide: Application in (Z)-Dibromo Alkene Synthesis.
Organic
Letters
2010,
12:4, 700-703.
Blevins, D.
; Yao, M.; Kabalka, G. W. Synthesis of (Z)-Dibromoalkenes via
Bromodeboronation of Stereo-defined Trifluoroborates.
Abstracts of Papers, 66th
Southwest and 62nd Southeastern Regional Meeting of the American Chemical Society,
New Orleans, LA, United States, December 1-4,
2010,
SESW-968.
UNDER REVIEW
Blevins, David W.
;
Yao, Min-Liang; Yong, Li; Kabalka, George W. Hydrolysis of
Potassium Organotrifluoroborates Using Iron Trichloride or Zinc Dust.
ARKIVOC
2012.
RESEARCH INTERESTS
The enantioselective synthesis of diaryl alcohols by the 1,2-addition of organoboron
compounds to aldehydes.
The enantioselective 1,4-additon of organoboron compounds to, -unsaturated
carbonyl compounds.
The transition metal catalyzed functional group transformations of organoboranes.
Halodemetallation reactions of organoboranes and organosilanes.
REFERENCES
George W. Kabalka, Ph.D.
Professor of Chemistry, Director of Basic Research for the UT Biomedical Imaging
Center of the Graduate School of Medicine
The University of Tennessee, TN
611 Buehler Hall
1420 Circle Drive
-1600
abo4f2@r.postjobfree.com
Laureta Smith, Ph.D.
Director, Upper Divisional Undergraduate Laboratories
The University of Tennessee, TN
416 Buehler Hall
1420 Circle Drive
-1600
abo4f2@r.postjobfree.com
Margie Tucker, Ph.D.
Department Chair, Professor of Chemistry
The University of Virginia's College at Wise, Wise, VA
Science Center 235
1 College Avenue
Wise, VA 24293
abo4f2@r.postjobfree.com
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