5-ACETYL[2.2]PARACYCLOPHANE

Authors
LINDEMAN SV STRUCHKOV YT GURYSHEV VN
Citation
Sv. Lindeman et al., 5-ACETYL[2.2]PARACYCLOPHANE, Acta crystallographica. Section C, Crystal structure communications, 50, 1994, pp. 1747-1749
Citations number
4
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
50
Year of publication
1994
Part
11
Pages
1747 - 1749
Database
ISI
SICI code
0108-2701(1994)50:<1747:5>2.0.ZU;2-T
Abstract
The title compound clo[8.2.2.2(4,7)]hexa-deca-4,6,10,12,13,15-hexane, C18H18O, is the first example of a mono-pi-substituted [2.2]paracyclop hane to be structurally characterized. The average bending angles are alpha = 13.2 and beta = 9.9 degrees. The distance between the 'bottoms ' of the practically parallel boat-like benzene nuclei is 3.098 (2) An gstrom. The pi conjugation between the acetyl group and the substitute d benzene cycle is negligible (rotation angle ca 45 degrees) because o f steric hindrance.