Intra- and intermolecular Diels-Alder reactions of glutaconaldehyde derivatives
作者:Jan Becher、Helle Chris Nielsen、Jens Peter Jacobsen、Ole Simonsen、Helen Clausen
DOI:10.1021/jo00244a005
日期:1988.4
Intramolecular Diels−Alder Reactions of Ester-Linked 1,3,8-Nonatrienes
作者:Tory N. Cayzer、Michael N. Paddon-Row、Damian Moran、Alan D. Payne、Michael S. Sherburn、Peter Turner
DOI:10.1021/jo0505829
日期:2005.7.1
Penta-1,3-dienyl acrylates undergo kinetically controlled intramolecular Diels-Alder (lMDA) reactions and DFT calculations (B3LYP/6-31+G(d)) predict stereoselectivities that are in very good agreement with the experimental values. The nature of the diene Cl substituent has virtually no influence upon reactivity or trans/cis-stereoselectivity whereas terminal C9 dienophile substituents have a substantial effect on both the reactivity and stereoselectivity of these IMDA reactions. The TSs highlight contributions from strain in the developing tether-containing ring, and steric and electronic effects between tether and dienophile substituents, thus providing insight into the origins of IMDA reactivity and stereoselectivity.