M. Umehara, H. Takayanagi, H. Ogura
Nov 1, 1978
Citations
0
Influential Citations
4
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
The crystal structure of 7-bromo-4,4-dimethylbicyclo[6.3.0]undecane-2,6-dione has been determined in order to elucidate the configuration and the conformation of 4,4-dimethylbicyclo[6.3.0]undecane-2,6-dione. The crystals of this compound are triclinic with space group P\barl and the unit cell dimensions are, a=7.178, b=16.934, c=6.091 A, α=96.22, β=100.91, γ=115.39°, and Z=2. The crystal structure was solved by the heavy-atom method and refined by the block-diagonal least-squares method. The final R value for 1473 non-zero reflexions was 0.067. The ring fusion of this compound is trans and the 8-membered ring has a boat-chair conformation.