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3,4-O-Isopropyl-idene-2-C-methyl-d-galactonolactone.

ABSTRACT: X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the title mol-ecule, C(10)H(16)O(6), in which the 1,5-lactone ring exists in a boat conformation. The use of d-galactose in the synthesis determined the absolute stereochemistry. The crystal exists as O-H?O hydrogen-bonded layers in the ab plane, with each mol-ecule acting as a donor and acceptor for two hydrogen bonds.

SUBMITTER: Dai N

PROVIDER: S-EPMC2979786 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature

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3,4-O-Isopropyl-idene-2-C-methyl-d-galactonolactone.

Dai N N Jenkinson S F SF Fleet G W J GW Watkin D J DJ

Acta crystallographica. Section E, Structure reports online 20100120 Pt 2

X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the title mol-ecule, C(10)H(16)O(6), in which the 1,5-lactone ring exists in a boat conformation. The use of d-galactose in the synthesis determined the absolute stereochemistry. The crystal exists as O-H⋯O hydrogen-bonded layers in the ab plane, with each mol-ecule acting as a donor and acceptor for two hydrogen bonds. ...[more]

PMID: 21579826

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