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Journal ArticleDOI

Structure of oxoflavidin, a 9,10-dihydrophenanthropyrone from Coelogyne elata

01 Jan 1984-Phytochemistry (Pergamon)-Vol. 23, Iss: 3, pp 671-673
TL;DR: In this paper, a new phenolic compound isolated from the Himalayan orchid Coelogyne elata was shown to be 2,7-dihydroxy-9,10-Dihydro-5H-phenanthro[4,5-bcd]pyran-5-one (2d) by spectral and chemical evidence.
About: This article is published in Phytochemistry.The article was published on 1984-01-01. It has received 24 citations till now.
Citations
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Journal ArticleDOI
TL;DR: Flaccidin, a new 9,10-dihydrophenanthropyran derivative, was isolated from the orchid Coelogyne flaccida and was shown to be 2,6- dihydroxy-7-methoxy-9, 10-dhydro-5H-phenanthro[4,5-bcd]pyran mainly from spectroscopic evidence.

30 citations

Journal ArticleDOI
TL;DR: Volucrin, a new dimeric phenanthrene derivative, was isolated from the orchid Lusia Volucris which also afforded 3',4-dihydroxy-3, 5'-dimethoxy-bibenzyl (2 ) and the perfumery constituents methyl 2,4-Dihydrox-6-methyl benzoate (3a ) and methyl 2.

27 citations

Journal ArticleDOI
TL;DR: Agrostophyllin, the first naturally occurring phenanthropyran derivative, was isolated from the orchid AgrostophyLLum khasiyanum and it was shown to be able to biosynthesise nonvolatile substance such as polymethine.

26 citations

Journal ArticleDOI
TL;DR: From the orchid Cirrhopetalum elatum was isolated a new triterpene of the cycloartane series, which was shown to be 24-methylenecycloartanyl p -hydroxycinnamate from spectral and chemical evidence.

26 citations

Journal ArticleDOI
TL;DR: Flaccidinin, a new phenanthropyrone derivative, and oxoflaccidIn, the corresponding 9,10-dihydro compound, were isolated from the orchid Coelogyne flaccida, which also yielded the previously reported 9, 10- dihydrophenanthropyran derivatives flaccid in and imbricatin.

20 citations

References
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Journal ArticleDOI
TL;DR: 2,7-Dihydroxy-4-methoxy-9,10-dihydrophenanthrene was isolated and identified from the whole plant of Coelogyne ochracea and C. elata.

77 citations

Journal ArticleDOI
TL;DR: Two new modified 9, 10-dihydrophenanthrenes of the orchids Pholidota articulata, Otochilus porecta and O. fusca have been established and NMR spectral analysis of isoflavidinin acetate confirmed its structure.

33 citations