Journal ArticleDOI
Konyanin: a new lignan from hapuophyllum vulcaniclm
TLDR
Konyanin this paper is the first known 1,4-dihydroarylnaphthalene lignan in which the lactone carbonyl is bonded to C-3 instead of C-2.About:
This article is published in Tetrahedron.The article was published on 1984-01-01. It has received 30 citations till now. The article focuses on the topics: Lignan.read more
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Haplomyrtin and (−)-haplomyrfolin: two lignans from haplophyllum myrtifolium
Umran Evcim,Umran Evcim,Belkis Gōzler,Belkis Gōzler,Alan J. Freyer,Alan J. Freyer,Maurice Shamma,Maurice Shamma +7 more
TL;DR: Haplomyrtin, a new 1-aryl-2-3-naphthalide lignan, and (−)-haplomyrfolin, a dibenzylbutyrolactone lignant, have been obtained from Turkish Haplophyllum myrtifolium.
Journal ArticleDOI
Isodaurinol, an arylnaphthalene lignan from Haplophyllum cappadocicum
TL;DR: The first report of the isolation of (−)-matairesinol from Haplophyllum cappadocicum was made by as mentioned in this paper, where the structures of the compounds described were established by spectroscopic analyses.
Journal ArticleDOI
Lignans, alkaloids and coumarins from Haplophyllum vulcanicum
TL;DR: This is the first report of (−)-syringaresinol from the genus Haplophyllum and of (−-haplomyrfolin, (−)-tuberculatin, dictamnine, haplopine and umbelliferone from the title species.
Journal ArticleDOI
Cu-catalyzed intramolecular hydroarylation of alkynes
TL;DR: An efficient Cu-catalyzed intramolecular hydroarylation reaction of alkynes has been developed and shows good tolerance to both electron-rich and electron-deficient aryl nucleophiles.
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Haplophytin-A and B: the alkaloidal constituents of Haplophyllum acutifolium.
TL;DR: During the phytochemical investigation of Haplophyllum acutifolium, two alkaloids named haplophytin-A and B have been obtained and the structures of constituents 1 and 2 were further confirmed through HMBC technique.
References
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Journal ArticleDOI
New lignans from the heartwood of cleistanthus collinus
Ammanamanchi S. R. Anjaneyulu,P. Atchuta Ramaiah,L. Ramachandra Row,Revuru Venkateswarlu,Andrew Pelter,Robert S. Ward +5 more
TL;DR: In this article, the authors reported the isolation and characterisation of five new compounds and nine known compounds from the heartwood of Cleistanthus collinus, including wodeshiol, 3,4-dihydrotaiwanin, and three new glycosides.
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Chemical constituents of Cleistanthus collinus (Roxb.)
TL;DR: In this paper, Ellagic acid, diphyllin and two new lignan lactones, cleistanthin and collinusin, have been isolated from Cleistanthus collinus (Roxb).
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Dibenzylbutyrolactone lignans from Virola sebifera
TL;DR: The fruit of Virola sebifera contains in the seed (2R, 3S)-3-(3,4-dimethoxybenzyl)-2-(3-4-methylenedioxybenzol)-butyrolactone, and in the pericarp (2 R, 3R)-2,3-di-(3, 4-dimethylfluoromethydroxybenZyl)-butiesolactone.
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Alkaloid, lignan and flavonoid constituents of Haplophyllum tuberculatum from Sudan.
Sami A. Khalid,P. G. Waterman +1 more
TL;DR: The aerial parts of Haplophyllum tuberculatum collected in Sudan have yielded the furoquinoline alkaloid skimmianine, the lignan justicidin-A, and 5,7,4'-trihydroxy-6-methoxy-3-O-glucosyl flavone.