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A synthesis of 12,13-epoxytrichothec-9-ene

โœ Scribed by Noriyoshi Masuoka; Tadao Kamikawa


Publisher
Elsevier Science
Year
1976
Tongue
French
Weight
176 KB
Volume
17
Category
Article
ISSN
0040-4039

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โœฆ Synopsis


12,13-Epoxytrlchothec-9-ene L IS a metabollte isolated from Trlchotheclun roseum by Nozoe et al 1 and rts structure was synthetically conflnned by Tatsuno et al 2 In a previous papert we reported that the model cowound 2 was stereoselectlvely cycllsed to 3 by the -slrmlar way as predlcted for the blosynthesls of trlchoderrmn 4


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Total synthesis of the ฮฒ-amyrin derivati
โœ E. Ghera; F. Sondheimer ๐Ÿ“‚ Article ๐Ÿ“… 1964 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 177 KB

We report the total synthesis of the racemlc /l -amyrin derivatives olean-13(18)-ene (XII) and l&r-olesn-12-ene (XIII) by a direct route, not involving relays. Trevious syntheses of fl -amyrin derivatives using natural materials as relays have been described4. Condensation of the Grignard derivativ