Thermal disrotatory electrocyclic isomerization of cis-bicyclo[4.2.0]oct-7-ene to cis,cis-1,3-cyclooctadiene |
| |
| Authors: | Baldwin John E Gallagher Sarah S Leber Phyllis A Raghavan Anuradha |
| |
| Institution: | Department of Chemistry, Syracuse University, Syracuse, New York 13244, USA. jbaldwin@syr.edu |
| |
| Abstract: | reaction: see text] The ratio of observed rate constants, k/k', for thermal isomerizations of cis-bicyclo4.2.0]oct-7-ene and its 2,2,5,5-d(4) analogue to cis,cis-1,3-cyclooctadienes at 250 degrees C is 1.17, indicative of a secondary, not a primary, deuterium kinetic isotope effect. The reaction does not occur through a 1,5] hydrogen shift from the transient cis,trans-1,3-cyclooctadiene intermediate to form the observed cis,cis-diene product. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
