Pentacyclo[5.4.0.0^2,6.0^3,10.0^5,9]undecane-8,11-dione ethylene acetal

Abstract

Key indicatorsSingle-crystal X-ray study T = 173 K Mean (C-C) = 0.003 Å R factor = 0.062 wR factor = 0.172 Data-to-parameter ratio = 16.5For details of how these key indicators were automatically derived from the article, see

Benzyl 5-hydroxy-4-oxapentacyclo[5.4.1.02,6.03,10.08,11]dodecane-3-carboxylate

“…For examples of PCU cage structures that exhibit C-C bond lengths that deviate from the normal value, see: Flippen-Anderson et al (1991); Linden et al (2005). For similar structures, see: Kruger et al (2005Kruger et al ( , 2006; Karpoormath et al (2010). Mo K radiation = 0.10 mm À1 T = 173 K 0.34 Â 0.22 Â 0.16 mm…”

“…We have reported the single-crystal X-ray structure of a range of pentacycloundecane (PCU) derivatives. More recently this included an ether diol (Kruger et al, 2005), a mono-ketone ethyl acetate (Kruger et al, 2006) and a mono-ketone diester (Karpoormath et al, 2010). The tile compound is the first example of a PCU derivative X-ray structure report containing an ether, ester and primary alcohol functional groups (Fig.…”

tert-ButylN-[(11-exo-benzyloxycarbonyl-8-oxopentacyclo[5.4.0.02,6.03,10.05,9]undecane-11-endo-yloxy)carbonylmethyl]carbamate

“…For examples of cage structures with C-C bonds lengths that differ from normal, see: Marchand (1989); Kruger et al (2006). For examples of crystal structures of mono-ketone PCU molecules bearing heteroatoms, see: Watson et al (2000); Flippen-Anderson et al (1991); Liu et al (2001).…”

1,7-Dimethylpentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione

“…For related literature and examples of PCU cage structures exhibiting C-C bond lengths that deviate from the norm, see: Flippen-Anderson et al (1991); Bott et al (1998); Linden et al (2005); Kruger et al (2006). For the crystal packing of analogous PCU cage structures, see: Kruger et al (2006); Boyle et al (2007a,b). For the synthesis, see: Mehta et al (1981).…”