Open Access2,2′:5,6‐Di‐ O ‐isopropylidene‐2‐ C ‐hydroxymethyl‐ d ‐talono‐1,4‐lactone
Author(s) -
Harding Christopher C.,
Watkin David J.,
Cowley Andrew R.,
Soengas Raquel,
Skytte Ulla P.,
Fleet George W. J.
Publication year - 2005
Publication title -
acta crystallographica section e
Language(s) - English
Resource type - Journals
ISSN - 1600-5368
DOI - 10.1107/s1600536804033549
Subject(s) - lactone , acetone , hydroxymethyl , chemistry , aqueous solution , stereochemistry , sodium , cyanide , organic chemistry
A second crystalline diacetonide, the title compound, C 13 H 20 O 7 , has been isolated from the sequential treatment of d ‐tagatose with aqueous sodium cyanide, followed by acetone in the presence of acid. Structural ambiguities with regard to the size of both the lactone and ketal rings are resolved by the X‐ray crystallographic analysis.