ERIC Number: EJ1269357
Record Type: Journal
Publication Date: 2020-Aug
Pages: 6
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
S[subscript N]1, E1, and E2 Reactions of "tert"-Amyl Compounds: Improved Analysis Using Computational Chemistry and ASAP-HSQC NMR Spectroscopy
Journal of Chemical Education, v97 n8 p2280-2285 Aug 2020
A set of inexpensive and pedagogically rich experiments focusing on S[subscript N]1, E1, and E2 reactions have been updated to include modern computational and spectroscopic analyses. The S[subscript N]1 experiment involves treatment of "tert"-amyl alcohol with hydrochloric acid to generate the corresponding alkyl chloride, which is used as the starting material for the subsequent E2 reaction. The E1 experiment involves reaction of "tert"-amyl alcohol with sulfuric acid. Both elimination reactions generate a pair of isomeric methylbutenes, with the ratio being dependent on the reaction mechanism. The combination of computational chemistry and a recently developed fast heteronuclear single-quantum correlation spectroscopy method (ASAP-HSQC), in tandem with [superscript 1]H and [superscript 13]C NMR and GC-MS analysis, allows the E1 and E2 product mixtures to be fully analyzed by students.
Descriptors: Science Instruction, Chemistry, Spectroscopy, Science Experiments, Teaching Methods, College Science, Undergraduate Study, Science Laboratories, Laboratory Experiments
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; Postsecondary Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A