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2,3-O-(S)-Benzyl-idene-2-C-methyl-d-ribono-1,4-lactone.

ABSTRACT: The crystal structure of the title compound, C(13)H(14)O(5), establishes (i) the (S) - rather than (R) - configuration at the acetal carbon and (ii) that both the acetal and the lactone form five- rather than six-membered rings; the absolute configuration is determined by the use of 2-C-methyl-d-ribono-1,4-lactone as the starting material. The compound consists of hydrogen-bonded chains of mol-ecules running along the a axis; there are no unusual packing features. Only classical hydrogen bonding has been considered.

SUBMITTER: Booth KV 

PROVIDER: S-EPMC2969893 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature

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2,3-O-(S)-Benzyl-idene-2-C-methyl-d-ribono-1,4-lactone.

Booth K Victoria KV   Jenkinson Sarah F SF   Fleet George W J GW   Watkin David J DJ  

Acta crystallographica. Section E, Structure reports online 20090822 Pt 9

The crystal structure of the title compound, C(13)H(14)O(5), establishes (i) the (S) - rather than (R) - configuration at the acetal carbon and (ii) that both the acetal and the lactone form five- rather than six-membered rings; the absolute configuration is determined by the use of 2-C-methyl-d-ribono-1,4-lactone as the starting material. The compound consists of hydrogen-bonded chains of mol-ecules running along the a axis; there are no unusual packing features. Only classical hydrogen bonding  ...[more]

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