Xanthouroleuconaphin: a yellowish pigment from the aphid Uroleucon nigrotuberculatum and its total synthesis
Autor: | Tetsuto Tsunoda, Masami Tanaka, Ayaka Sogabe, Takeshi Nishii, Taichi Nishimura, Hiroto Kaku, Makoto Inai, Shigeru Takahashi, Kouji Yamada, Mitsuyo Horikawa |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Tetrahedron. 69:1808-1814 |
ISSN: | 0040-4020 |
DOI: | 10.1016/j.tet.2012.12.070 |
Popis: | A novel yellowish pigment, xanthouroleuconaphin, was isolated from the aphid Uroleucon nigrotuberculatum. Its structure was established by detailed analyses of 1D and 2D NMR spectra and EI-HRMS. Furthermore, the total synthesis of (±)-xanthouroleuconaphin was accomplished via oxidative phenolic coupling of 6-hydroxymusizin, which was prepared by the Fries rearrangement using BF3·2AcOH complex. |
Databáze: | OpenAIRE |
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