Document Detail


Guttiferic acid, a novel rearrangement product from minor chromenoxanthone pigments of Garcinia morella Desr.
MedLine Citation:
PMID:  17534879     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Morellic and isomorellic acids (2 and 3), present in the seed coat as well as resinous exudate of Garcinia morella Desr., are geometric isomers and structurally related to morellin (1), the major chromenoxanthone pigment. Both form crystalline complexes with pyridine and afford guttiferic acid (7), a novel skeletal rearrangement product, when heated with mild alkali. Structure of the latter has been deduced mainly by a comparative study of 1H and 13C NMR spectra of methyl morellate (5), methyl-O-methyl morellate (6), guttiferic acid (7) and dimethyl guttiferate (8).
Authors:
D Rajagopal Rao; K N Gurudutt; S Mamatha; L J Mohan Rao
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Magnetic resonance in chemistry : MRC     Volume:  45     ISSN:  0749-1581     ISO Abbreviation:  Magn Reson Chem     Publication Date:  2007 Jul 
Date Detail:
Created Date:  2007-06-04     Completed Date:  2007-09-19     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9882600     Medline TA:  Magn Reson Chem     Country:  England    
Other Details:
Languages:  eng     Pagination:  578-82     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2007 John Wiley & Sons, Ltd.
Affiliation:
Central Food Technological Research Institute, Mysore-570 020, India.
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MeSH Terms
Descriptor/Qualifier:
Benzopyrans / chemistry*
Crystallization
Garcinia / chemistry*
Hot Temperature
Magnetic Resonance Spectroscopy
Molecular Structure
Plant Extracts / chemistry
Pyridines / chemistry
Xanthones / chemistry*
Chemical
Reg. No./Substance:
0/Benzopyrans; 0/Plant Extracts; 0/Pyridines; 0/Xanthones; 0/guttiferic acid; 110-86-1/pyridine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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