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2,2′:5,6-Di-O-iso­propyl­idene-2-C-hydro­xymethyl-d-talono-1,4-lactone

✍ Scribed by Harding, Christopher C. ;Watkin, David J. ;Cowley, Andrew R. ;Soengas, Raquel ;Skytte, Ulla P. ;Fleet, George W. J.

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
410 KB
Volume
61
Category
Article
ISSN
1600-5368

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✦ Synopsis

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.

📜 SIMILAR VOLUMES

3-Azido-3-deoxy-2,2′:5,6-di-O-iso­propyl
3-Azido-3-deoxy-2,2′:5,6-di-O-iso­propyl­idene-2-C-hydro­xmethyl-d-gulono-1,4-lactone
✍ Harding, Christopher C. ;Shallard-Brown, Howard ;Watkin, David J. ;Soengas, Raqu 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 897 KB

Single-crystal X-ray study T = 120 K Mean '(C±C) = 0.005 A Ê R factor = 0.045 wR factor = 0.108 Data-to-parameter ratio = 9.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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✍ Ameijde, Jeroen van ;Cowley, Andrew R. ;Fleet, George W. J. ;Nash, Robert J. ;Si 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 181 KB

The title compound, C 10 H 17 NO 6 , was prepared by carrying out three S N 2 displacements on a branched sugar derivative, one of which was not planned. Its crystal structure was determined to con®rm the identity and stereochemistry of the product.

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Single-crystal X-ray study T = 120 K Mean '(C±C) = 0.004 A Ê R factor = 0.045 wR factor = 0.102 Data-to-parameter ratio = 11.0 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.