## Single-step purification of dracorhodin from dragon's blood resin of Daemonorops draco using high-speed counter-current chromatography combined with pH modulation Dracorhodin is a major constituent found in ''Dragon's blood'' resin of Daemonorops draco Willd. Blume. This natural flavylium compo
Novel Flavonoids in Dragon's Blood of Daemonorops draco
✍ Scribed by Ken-ichi Nakashima; Naohito Abe; Fumiko Kamiya; Tetsuro Ito; Masayoshi Oyama; Munekazu Iinuma
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- German
- Weight
- 196 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The three novel methylene bis[flavonoids] 1–3, the novel 2‐flavene 4, the new naturally occurring flavan 5, and the new retro‐dihydrochalcone 6 were isolated from dragon's blood of Daemonorops draco, together with seven known compounds. The structures were elucidated by extensive 1D‐ and 2D‐NMR spectroscopic analysis.
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## Abstract The compound 7,4′‐dihydroxy‐5‐methoxyflavylium (dracoflavylium) was identified as the major red colorant in samples of the resin “dragon's blood”, extracted from the tree __Dracaena draco__. The complex network of reversible chemical reactions that dracoflavylium undergoes in aqueous so
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