The structures of the title compounds (2b and 3) have been investigated in the solid state by X-ray methods. The crystals of 2b are monoclinic, space group P2,, and of 3 orthorhombit, space grtup P2,2,2,. The cell dimensions are: for 2b, a = 9.910(2), b = 11;745W, c = 11.810(3) A, /3 = 97.32(l)"; a
X-ray and conformational investigation of 6-deoxy-7-C-(2-furyl)-1,2:3,4-di-O-isopropylidene-l-glycero-a-d-galacto- heptopyranose
✍ Scribed by Janusz W. Krajewski; Przemyslaw Gluziński; Zofia Urbańczyk-Lipkowska; Jan Ramza; Aleksander Zamojski
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 400 KB
- Volume
- 200
- Category
- Article
- ISSN
- 0008-6215
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✦ Synopsis
The crystals of the title compound arc orthorhombic, space group P2,2,2, (Z = 4) with cell dimensions a = 9.791(l), b = 10.235(l), c = 17.703(2) A. The pyranoid ring has a hybrid twist + screw ("T2+"S5) conformation, and the configuration at C-7 is (R).
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6-C-(2-Furyl)-1,2:3,4-di-O-isopropylidene-~-D-g~yce~o-D-ga~~c~o-hexopyranose (1) has been investigated by X-ray diffraction methods. The crystals obtained from ethyl acetate-light petroleum were monoclinic, space group P2, (2 = 2)) with cell dimensions a = 13.796(2), b = 7.887(l), c = 8.035(l) A, an
The structure of the title compound has been determined by X-ray analysis. The conformations of the saturated six-membered and the 1,3-dioxolane rings in the cis, tram, cis system of di-0-isopropylidene derivatives of a-D-galactopyranose, P-D-fructopyranose, and di-O-tosyl-L-chiro-inositol have been
The publisher regrets that Scheme 1 was omitted from the above Paper. (1) Scheme 1 on page 86 of the above Paper should be changed to the following: (2) The formulae at the top of page 90 should be numbered 25 and 26, respectively.