ERIC Number: EJ1184766
Record Type: Journal
Publication Date: 2018-Jul
Pages: 3
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
Available Date: N/A
Research Experience for the Organic Chemistry Laboratory: A Student-Centered Optimization of A Microwave-Enhanced Williamson Ether Synthesis and GC Analysis
Journal of Chemical Education, v95 n7 p1235-1237 Jul 2018
An inquiry-based experiment for the organic chemistry laboratory was developed to provide students with a cognitively rich research experience. Student teams were charged with optimizing the reaction conditions for the Williamson ether synthesis of 2- fluorophenetole from 2-fluorophenol, ethyl bromide, and potassium carbonate in either absolute ethanol or acetonitrile. Microwave acceleration of this S[subscript N]2 reaction followed by rapid GC-MS analysis allowed students to review results, revise experimental conditions, and repeat the modified reaction and its analysis within a 3 h laboratory period. Variables that could be manipulated were reagent equivalencies, solvents and their volume, microwave reaction time, temperature, and wattage. Post-laboratory, all team data were available to the entire class for additional evaluation and each student was required to suggest new conditions for improvement in his/her laboratory report.
Descriptors: Organic Chemistry, Student Experience, Student Research, Laboratory Experiments, Synthesis, Cooperative Learning, Student Centered Learning, Hands on Science, Problem Solving, Discovery Learning, Undergraduate Students, Teaching Methods
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Pennsylvania
Grant or Contract Numbers: N/A
Author Affiliations: N/A