دورية أكاديمية
1-O-Benzyl-2,3-O-isopropylidene-6-O-tosyl-α-l-sorbofuranose
العنوان: | 1-O-Benzyl-2,3-O-isopropylidene-6-O-tosyl-α-l-sorbofuranose |
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المؤلفون: | John H. Reed, Peter Turner, Atsushi Kato, Todd A. Houston, Michela I. Simone |
المصدر: | Acta Crystallographica Section E, Vol 69, Iss 7, Pp o1069-o1070 (2013) |
بيانات النشر: | International Union of Crystallography, 2013. |
سنة النشر: | 2013 |
المجموعة: | LCC:Crystallography |
مصطلحات موضوعية: | Crystallography, QD901-999 |
الوصف: | In the title compound (systematic name: {(3aS,5S,6R,6aS)-3a-[(benzyloxy)methyl]-6-hydroxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl}methyl 4-methylbenzenesulfonate), C23H28O8S, the absolute structure and relative stereochemistry of the four chiral centres have been established by X-ray crystallography, with the absolute configuration inferred from the use of l-sorbose as the starting material. The central furanose ring adopts a slightly twisted envelope conformation (with the C atom bearing the methylbenzenesulfonate substituent as the flap) from which three substituents depart pseudo-axially (–CH2—O—benzyl, –OH and one acetonide O atom) and two substituents pseudo-equatorially (–CH2—O—tosyl and second acetonide O atom). The dioxalane ring is in a flattened envelope conformation with the fused CH C atom as the flap. In the crystal, molecules pack in columns along [010] linked by O—H...O hydrogen bonds involving the furanose hydroxy group and furanose ether O atom. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 16005368 1600-5368 |
Relation: | http://scripts.iucr.org/cgi-bin/paper?S1600536813015638; https://doaj.org/toc/1600-5368 |
DOI: | 10.1107/S1600536813015638 |
URL الوصول: | https://doaj.org/article/a9a81f34030a4727b722e79a76609cf5 |
رقم الأكسشن: | edsdoj.9a81f34030a4727b722e79a76609cf5 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 16005368 |
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DOI: | 10.1107/S1600536813015638 |