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Migration of the O-acetyl group in the acetonation of guaianolide rhaposerin |
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| Authors: | Berdin A. G. Raldugin V. A. Shakirov M. M. Druganov A. G. Bagryanskaya I. Yu. Gatilov Yu. V. Kulyyasov A. T. Adekenov S. M. Tolstikov G. A. |
| Affiliation: | (1) Institute of Phytochemistry, Ministry of Education and Sciences of the Kazakhstan Republic, 4 ul. Gazalieva, 470032 Karaganda, Kazakhstan Republic;(2) N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akad. Lavrent"eva, 630090 Novosibirsk, Russian Federation |
| Abstract: | Acetonation of rhaposerin is accompanied by migration of the O-acetyl group. Acetonation of 15-O-deacetylrhaposerin afforded isomeric O-isopropylidene derivatives containing five- and six-membered rings. |
| Keywords: | sesquiterpenoids guaianolides 15-O-deacetylrhaposerin rhaposerin acetonides X-ray diffraction analysis HPLC 2D NMR spectroscopy |
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