Phenyl 3,4-O-isopropylidene-6-O-pivalyl-β-d-galactopyranoside
✍ Scribed by Jia, Jiong ;Zhang, Yan ;Wang, Xi-Zhao ;Shao, Teng-Fei ;Wang, Jian-wu
- Book ID
- 104487807
- Publisher
- International Union of Crystallography
- Year
- 2006
- Tongue
- English
- Weight
- 164 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
In the title compound, C 20 H 28 O 7 , the six-membered sugar ring adopts a distorted chair conformation. Intermolecular O-HÁ Á ÁO hydrogen bonds link the molecules into zigzag chains extending along the a axis. The crystal packing is further stabilized by weak intermolecular C-HÁ Á ÁO hydrogen bonds.
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 293 K Mean (C-C) = 0.005 A R factor = 0.050 wR factor = 0.141 Data-to-parameter ratio = 15.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
In the title compound, C 21 H 24 O 11 , all substituents of the protected sugar are in equatorial positions, with the exclusive presence of the -anomer. The glucose ring adopts the stable chair conformation.
In the title compound, C 20 H 23 NO 12 , the pyranoside ring adopts a 4 C 1 chair conformation, with all substituents oriented in equatorial positions. The endocyclic C-O-C angle is in agreement with the geometry of the equatorial glycosidic bond, typical for the -d-4 C 1 pyranoside conformation.