1,2:3,4-Di-O-isopropylidene-6-O-toluene-p-s~fonyl-~-D-g~a~op~~ose has been investigated by X-ray diffraction methods. The crystals are orthorhombic, space group p2,2,2, (2 = 4) with cell dimensions a = 15.210( 2), b = 15.658(2), and c = 8.858(l) A. The structure was solved by direct methods and the
Molecular structure and conformations of a sterically hindered aryl derivative of 1,3,4-oxadiazole containing an o,o′-biphenyl ring system
✍ Scribed by V. N. Baumer; A. O. Dorshenko; A. A. Verezubova; L. M. Ptyagina; A. V. Kirichenko; O. A. Ponomarev
- Book ID
- 105102370
- Publisher
- Springer US
- Year
- 1996
- Tongue
- English
- Weight
- 526 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0009-3122
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The title compound was isolated by several recrystallisations from a 1:l mixture of diastereomers which was obtained in 75% yield from the reaction of 1,2:3,4-di-O-isopropylidene-c~-D-galactopyranose with epichlorohydrin. The absolute configuration of this isomer (30% yield) was established by X-ray
X-ray crystallographic analyses are reported for the two title compounds (8 and 9), of which the former crystallized in two modifications (8n and 8b). In all three structures, the pyranose rings have the %, (D) conformation and the substituents at C-l are axial and those at C-24-4 are equatorial. Th