ISSN:
1572-8854
Keywords:
Dimethylcrocetin (DMCRT)
;
carotenoids
;
structure
;
saffron
;
Crocus sativus L
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The structure of dimethylcrocetin (DMCRT), prepared by alkaline hydrolysis in methanol of the glucosidic carotenoids extracted from the stigmata of theCrocus sativus L. flowers, has been determined. The molecule has the all-trans configuration and is planar forming a long conjugated system. The C−O bond length values of the two ester groups are shortened as expected. The compound (C11H14O2)2 crystallizes in the orthorhombic space group Pbcn witha=12.5907(7),b=7.5639(5) andc=21.963(2)Å. Dimethylcrocetin has characteristic Infrared absorptions at 1697 cm−1 ϑ (C=O) and 1229 cm−1 ϑ (C−O) and characteristic Raman vibrational modes at 1542 cm−1 ϑ (C=C) and 1166 cm−1 ϑ (C−C).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01666962
