X-ray crystallographic analysis firmly establishes the ribo stereochemistry and the unusual boat conformation of the title branched carbon chain lactone, C 9 H 13 N 3 O 4 , arising from an unexpected rearrangement in the nucleophilic substitution of a trifluoromethanesulfonate. There are two molecul
5-O-tert-Butyldiphenylsilyl-2-C-hydroxymethyl-2,3-O-isopropylidene-2′-O-trifluoromethanesulfonyl-d-ribono-1,4-lactone
✍ Scribed by Simone, Michela ;Fleet, George W. J. ;Watkin, David J.
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 435 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The title compound, C~26~H~31~F~3~O~8~SSi, provides a unique example of the crystal structure of an organic trifluoromethanesulfonate attached to a primary C atom. The absolute configuration is determined by the use of D-ribose as the starting material.
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 190 K Mean '(C±C) = 0.002 A Ê R factor = 0.031 wR factor = 0.078 Data-to-parameter ratio = 12.0 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
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.
The relative configuration of the title lactone, C 10 H 15 N 3 O 4 , a compound of value in the synthesis of complex pyrrolidines, was determined by X-ray crystallographic analysis.