
%0 Journal Article
%A Jaipetch, T 
%A Kanghae, S 
%A Pancharoen, O 
%A Patrick, V 
%A Reutrakul, V 
%A Tuntiwachwuttikul, P 
%A White, A 
%T Constituents of <I>Boesenbergia pandurata</I> (syn. <I>Kaempferia pandurata</I>): Isolation, Crystal Structure and Synthesis of (&#177;)-Boesenbergin A
%J Australian Journal of Chemistry
%D 1982/02/01
%V 35
%N 2
%P 351-361
%K 
%R https://doi.org/10.1071/CH9820351
%U https://www.publish.csiro.au/paper/CH9820351 
%X Partly racemized pinostrobin and pinocembrin, together with 2',6'-dihydroxy-4'-methoxychalcone, cardamonin and a new chalcone (±) boesenbergin A, have been isolated from Boesenbergia pandurata Schl. (syn. Kaempferia pandurata Roxb., Zingiberaceae). Spectroscopic studies and X-ray crystallographic analysis have established the structure (±)-(E)-1-[7'-hydroxy-5'-methoxy-2'-methyl- 2'-(4''-methylpent-3''-enyl)-2'H-chromen-8'-yl]-3-phenylprop-2-enone for boesenbergin A. A simple synthesis of boesenbergin A has been achieved and its acid-catalysed cyclization has been studied. 
