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Crystal structure of ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-hydroxyimino-α-d-arabino-hexopyranoside

✍ Scribed by Zbigniew Ciunik; Roman Szweda; Zygfryd Smiatacz

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
309 KB
Volume
219
Category
Article
ISSN
0008-6215

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✦ Synopsis

The crystals of the title compound, C,,H,,NO, (EA, 347.4), are o~~orhombic, spaee group P&2,2, with a = 8.998(2), b = 13.641(2), e = 14.027(3) A, V = 1721.7(6)A', and 2 = 4; 0, = 1.34 &cm-'. The pyranoid ring has the distorted 'C, conformation and the hydroxyimino group has the Z conformation. 2-Deoxy-2-oxyiminopyranosides (with one sp2-hybridised carbon atom in the ring) have a distorted chair conformation, and the N(oxime) atom is in a pseudo-'*' * Lists of the observed and caknlated structure factors, ani~t~pic tbermal parameters, and fractional atomic co-ordinates have been deposited with, and can be obtained from, Ekevier science Publishers B.V., BBA Data Deposition, P.O. Box 1527, Amsterdam, The Netherlands. Reference should be made to No. BBA/DD/471/Carbohydr. Res., 219 (1991) 9-13.

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