ISSN:
1600-5759
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
The title 4,6-O-benzylidene-α-D-glucopyranoside (systematic name: methyl 4-methoxy-2-oxo-8-phenyl-1,2,5a,6,9a,9b-hexahydro-4H,8H-7,9-dioxacyclopenta[c]chromene-3-carboxylate), C18H18O8, has been synthesized from the reaction of methyl 4,6-O-benzylidene-α-D-2-ketoglucopyranoside with diethyl or dimethyl malonate. The compound adopts a chair–chair conformation. The newly formed five-membered ring is fused to the glucopyranoside ring along the C2—C3 bond and is planar with an r.m.s. deviation of 0.0091 Å.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108270101015505
Permalink