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The crystal structure and conformational analysis of substituted 2,7-dioxabicyclo[4,1,0[heptanes: 1,2-anhydro-3,4,6-tri-O-benzyl-β-d-talopyranose

✍ Scribed by Genpei Li; Lihong Jiang; Fanzuo Kong; Jianhui Liu

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
437 KB
Volume
247
Category
Article
ISSN
0008-6215

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✦ Synopsis

The title compound, C28H27O5, is triclinic, space group P1 with unit cell dimensions a = 12.763(2), b = 11.130(2), c = 4.764(3) A, alpha = 73.78(3), beta = 82.89(3), gamma = 62.16(1) degrees, V = 574.8(4) A3, and Z = 1. The pyranose ring has an 4H5 conformation with some flattening at C-4. Molecular mechanisms calculations indicate that the 4H5 conformation of the pyranose ring in the title compound is the most stable conformation.

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