ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
From the photoelectron spectra of benzonorbornadiene (1) and its 9-isopropylidene derivative (2) the energy and an approximate wave function for the highest occupied orbitals is obtained. With these results the differential reactivity of the systems in Diels-Alder additions with ‘inverse electron demand’ is discussed on the basis of frontier orbitals. For the ground state of 2 similar non-bonded interactions between the isopropylidene unit and the double bond or the benzene ring are indicated. Conformational equilibria in 9-aza derivatives of 1 are discussed in view of these findings.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19760590134