Ontology highlight
ABSTRACT:
SUBMITTER: Wang YJ
PROVIDER: S-EPMC3247381 | biostudies-literature | 2011 Nov
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20111022 Pt 11
The title compound, C(18)H(22)O(6), was obtained by the domino oxa-Michael-aldol (DOMA) reaction and has the cyclo-hexa-none ring in a chair conformation with intra-annular torsion angles in the range 49.9 (2)-58.9 (2)°. The two eth-oxy-carbonyl substituents on the cyclo-hexa-none ring adopt a syn configurations. In the crystal, the mol-ecules self-assemble through duplex inter-molecular hy-droxy-carbonyl O-H⋯O hydrogen bonds, giving centrosymmetric cyclic dimers [graph set R(2) (2)(12)] which i ...[more]