The structure of 3,5-di-O-benzoyl-1,2-dideoxy-1-phenyl-β-D-ribofuranose, C25H22O5

Autor: G.A. Mock, T.A. Millican, M.A.W. Eaton, J. John Mann, Stephen Neidle, J. Gunning
Rok vydání: 1985
Předmět:
Zdroj: Acta Crystallographica Section C Crystal Structure Communications. 41:720-722
ISSN: 0108-2701
Popis: Mr=402.4, orthorhombic, P212~2 l, a= 4-946 (1), b= 15.887 (2), c=26.555 (2)A, V= 2086.7 (5) A 3, Z = 4, D x = 1.28 gcm -a, Cu Ka, 2 = 1.5418/k, B = 6.868 cm -1, F(000) = 848, T= 293 K, final R =0.054 for 648 observed reflections. The molecule is propeller shaped. The benzoyl groups act as protecting groups and the phenyl group is a base substitute. The crystal structure does not involve any intermolecular stacking interactions between the phenyl groups. The molecules pack in typical herring-bone-like arrays. The sugar has a fl-D configuration with C(2')-endo-C(3')-exo pucker (2T3), pseudorotation angle P = 172 (2) °, degree of pucker r m = 39 (2) °.
Databáze: OpenAIRE