A Simple Method for the Visualization of Chair and Twist-Boat Transition States in Torsionally Controlled Addition Reactions

Autor/inn/en	Niederer, Kyle A.; Fodor, Matthew D.; Catino, Arthur J.
Titel	A Simple Method for the Visualization of Chair and Twist-Boat Transition States in Torsionally Controlled Addition Reactions
Quelle	In: Journal of Chemical Education, 95 (2018) 7, S.1230-1234 (5 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Catino, Arthur J.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.8b00055
Schlagwörter	Chemistry; Science Instruction; Visualization; College Science; Scientific Concepts; Energy; Molecular Structure; Pennsylvania + Suchen Sie Ihr Suchwort? Chemie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Visualisation; Visualisierung; Energie
Abstract	Torsional effects influence kinetic selectivity in a wide range of organic transformations. As such, textbooks commonly use Newman projections to illustrate the torsional effects that arise in their transition states. Unfortunately, these representations fall short when the reaction occurs "within a ring." In many cases, the torsional preferences of the ring and the stereoelectronic (orbital) requirements of the reaction can lead to either a chair or twist-boat transition state. The aim of this communication is to shed light on these effects and to describe a new method to draw and visualize the associated chair and twist-boat transition state structures. (As Provided).
Anmerkungen	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
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01