STRUCTURE OF A PCU-DERIVED PINACOL FORMED VIA SODIUM-PROMOTED REDUCTIVE DIMERIZATION OF LO[5.4.0.0(2,6).0(3,10).0(5,9)]UNDECANE-8,11-DIONE MONOETHYLENE KETAL
Sg. Bott et al., STRUCTURE OF A PCU-DERIVED PINACOL FORMED VIA SODIUM-PROMOTED REDUCTIVE DIMERIZATION OF LO[5.4.0.0(2,6).0(3,10).0(5,9)]UNDECANE-8,11-DIONE MONOETHYLENE KETAL, Journal of chemical crystallography, 25(8), 1995, pp. 517-520
The pinacol resulting from sodium promoted reductive coupling of o[5.4
.0.0(2,6).O-3,O-10.0(5,9)]undecane-8,11-dione monoethylene ketal posse
sses a conformation, dictated by intramolecular hydrogen bonding, that
lies midway between eclipsed and staggered. The C-C and C-O distances
in the pinacol unit are, respectively, longer and shorter than usual,
and all parameters are as expected.