Crystal structure of 5-O-benzoyl-2,3-O-iso-propyl-idene-d-ribono-1,4-lactone.
In the title compound, C15H16O6, obtained from the acyl-ation reaction between 2,3-O-iso-propyl-idene-d-ribono-1,4-lactone and benzoyl chloride, the known absolute configuration for the lactone moiety of the ester substituent has been confirmed. The five-membered rings of the bicyclic lactone-dioxolane moiety both show envelope conformations and form a dihedral angle of 19.82 (7)° between the lactone ring and the benzene ring. In the crystal, mol-ecules of the acyl-ated sugar are linked by very weak inter-molecular C-H⋯O inter-actions, forming a three-dimensional network.
Depto. de Química - Universidade Federal de Santa Catarina, 88040-900 - Florianópolis, Santa Catarina, Brazil.
Adailton J
AJ
Bortoluzzi
Departamento de Química Orgânica - Instituto de Química, Universidade Federal do Rio Grande do Sul, 91501-970 - Porto Alegre, Rio Grande do Sul, Brazil.
Gustavo P
GP
Silveira
Depto. de Química - Universidade Federal de Santa Catarina, 88040-900 - Florianópolis, Santa Catarina, Brazil.
Marcus M
MM
Sá
absolute configuration; crystal structure; d-ribono-1,4-lactone; fused five-membered ring system