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On the chemistry of indian orchidaceae plants-II 1 1 For Part I see Ref. 1. Dengibsin and dengibsinin, the first natural fluorenone derivatives from dendrobium gibsonii lindl
S K TALAPATRA, S BOSE, A K MALLIK, B TALAPATRA
Published in -
1985
Volume: 41
   
Issue: 13
Pages: 2765 - 2769
Abstract
Dendrobium gibsonii, an Orchidaceae plant yielded the first natural fluorenone derivatives designated dengibsin and dengibsinin to which 1,5-dihydroxy-7-methoxy-9-fluorenone (1) and 1,6-dihydroxy-5, 7-dimethoxy-9-fluorenonc (2) structures have been assigned respectively. The structures are fully supported by the 1 H-NMR, IR, UV and MS spectral data of dengibsin and dengibsnin and a number of their pertinent derivatives. Aurantiamide acetate, dimethyl terephthalate and β-sitosterol have been isolated as the other constituents. © 1985.
About the journal
JournalTetrahedron
Publisher-
ISSN0040-4020