STRUCTURES OF 2 HEXACYCLIC CAGE DIKETONE MONOACETALS

Authors
COXON JM FONG ST STEEL PJ BOTT SG MARCHAND AP ZOPE UR
Citation
Jm. Coxon et al., STRUCTURES OF 2 HEXACYCLIC CAGE DIKETONE MONOACETALS, Acta crystallographica. Section C, Crystal structure communications, 49, 1993, pp. 1859-1862
Citations number
14
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
49
Year of publication
1993
Part
10
Pages
1859 - 1862
Database
ISI
SICI code
0108-2701(1993)49:<1859:SO2HCD>2.0.ZU;2-C
Abstract
The structures of 1).0(4,9).0(4,14).0(9,13)]pentadeca-5,7-dien-3-one a nd 11).04,9.-0(4,14).0(9,13)]pentadeca-5,7-dien-3-one are reported. In each structure the cyclohexadiene ring is planar. Bonding geometries are similar to those found in other cage structures, except for elonga tions of the C4-C9 propellane-type bonds due to the fusion of the dien e rings. A slight flattening of the boat conformations of the unbridge d six-membered rings is observed in the acetals relative to the parent dione.