ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Reactions of saccharides catalyzed by molybdate ions. 39. NMR-spectra of the aldoses of ribose and arabinose homomorphous series in molybdate complexes

M. Matulová and V. Bílik

Institute of Chemistry, Centre for Chemical Research, Slovak Academy of Sciences, CS-842 38 Bratislava

 

Abstract: It was proved by means of NMR spectroscopy that in aqueous solutions D-ribose, D-talose, D-glycero-D-talo-heptose, and D-glycero-L-talo-heptose form with ammonium molybdate the molybdate complexes. In these com- plexes the saccharides are preferably in pyranoid structures, the conforma- tion being preferably close to В and C, and hydroxyl groups on carbon atoms C-2, C-3, and C-4 being involved in complexation. Aldoses belonging to the arabinose homomorphous series, D-arabinose, D-galactose, D-glycero- -D-gtf/flc7ö-heptose, and D-glycero-L-galacto-heptose form in two conforma- tions of acyclic structures binuclear tetradentate molybdate complexes preferably involving hydroxyl groups on carbon atoms C-2, C-3, C-4, and C-5. The octoses D-erythro-L-talo-octose and D-erythro-L-galacto-octose preferably produce molybdate complexes involving hydroxyl groups bound to carbon atoms C-5, C-6, C-7, and C-8 with the forced furanoid structures of the aldooctoses.

Full paper in Portable Document Format: 441a77.pdf

 

Chemical Papers 44 (1) 77–87 (1990)

Sunday, November 28, 2021

IMPACT FACTOR 2020
2.097
SCImago Journal Rank 2020
0.344
SEARCH
Advanced
VOLUMES
XXVIII. International Conference on Coordination and Bioinorganic Chemistry
© 2021 Chemical Papers