作者:Simon G. Bott、Duddu Raja Gopal、Annavajhula Durga Prasad、Alan P. Marchand
DOI:10.1007/bf01185553
日期:1993.12
The structure of a compound derived from a symmetrical cage diketone in which one of the ketone C=O groups has been converted into a ketal is reported. An investigation into reasons for the selective functionalization resulted in the isolation of a cis, cisoid, cis linear triquinane derivative in which both ketones are converted to ketals that share a transannular oxygen atom. Crystal data: 2, monoclinic, P2(1)/c, a=7.6298(9), b=7.673(3), c=22.125(3)Angstrom, beta=97.59(1)degrees, V=1283.9(5)Angstrom(3), and R=0.048 (1001 reflections); 4, triclinic, P ($) over bar 1, a=7.3864(9), b=9.6362(9), c=10.3889(9)Angstrom, alpha=75.749(6), beta=76.300(8), gamma=83.100(8)degrees, V=694.8(4)Angstrom(3), and R=0.088 (1284 reflections).