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Synthesis of triterpenoid-based 1,2,4-trioxolanes and 1,2,4-dioxazolidines by ozonolysis of allobetulin derivatives

✍ Scribed by Oxana B. Kazakova; Dmitri V. Kazakov; Emil Yu. Yamansarov; Natal’ya I. Medvedeva; Genrikh A. Tolstikov; Kyrill Yu. Suponitsky; Dmitri E. Arkhipov


Publisher
Elsevier Science
Year
2011
Tongue
French
Weight
362 KB
Volume
52
Category
Article
ISSN
0040-4039

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✍ Prof. Dr. Gottfried Schill; Dipl.-Chem. Enno Logemann; Dipl.-Chem. Clemens Zürch 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 123 KB 👁 1 views

distillation under high vacuum at room temperature (time required ca. 48 h). Double recrystallization of the residue from pentane afforded (2) in 50 to 55% yield (based on ( I ) ) . For conversion of (2) into (3) a solution of (2) (2.3 mmol) and Fe(CO), (3 ml) in ether (50 ml) was irradiated at -40