(P,M)-1,2,3,9,10,11-hexamethoxy-5,7-dihydrodibenz[c,e]oxepine and (P,M)-1,11-dimethyl-5,5,7,7-tetraphenyl-5,7-dihydrodibenz[c,e]oxepine.
The title compounds, C(20)H(24)O(7) and C(40)H(32)O, respectively, are racemic oxepines, the molecules of which contain a chiral axis. Both molecules possess crystallographic C(2) symmetry and the seven-membered ring adopts a twisted-boat conformation.
Linden
Anthony
A
Institute of Organic Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland. alinden@oci.unizh.ch
Furegati
Markus
M
Rippert
Andreas J
AJ