Автор |
Mazhar-ul-Haque, Mazhar-ul-Haque |
Автор |
Freestone, Ali |
Дата выпуска |
1977 |
dc.description |
The title compound (7) was isolated as a minor product of successive tosylation, acetylation and iodide displacement of methyl α-D-mannopyranoside (1). Crystals of the title compound are orthorhombic, space group P212121, a= 9.293(2), b= 14.220(6). c= 16.969(6)à Z= 4. The structure was solved from diffractometer data by heavy-atom techniques, and refined by block-diagonal least-squares methods to R 0.052 for 1 802 independent reflections. The results supply the constitution and absolute configuration (8). The conformation of the pyranoside ring is <sup>4</sup> C 1(.tbd6;C1) in the solid state and <sup>1</sup>H n.m.r. studies showed this to be the predominant conformation in solution also. |
Формат |
application.pdf |
Издатель |
Royal Society of Chemistry |
Название |
Crystal structure and absolute configuration of methyl 3,4-di-O-acetyl-6-deoxy-6-iodo-2-O-p-tolylsulphonyl-α-D-mannopyranoside |
Тип |
research-article |
DOI |
10.1039/P29770001509 |
Electronic ISSN |
1364-5471 |
Print ISSN |
0300-9580 |
Журнал |
Journal of the Chemical Society, Perkin Transactions 2 |
Первая страница |
1509 |
Последняя страница |
1513 |
Выпуск |
12 |