Intramolecular cyclisation of α,β-epoxy-artemisia ketone
✍ Scribed by Elena Tsankova; Valentin Enev; Svetlana Simova
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- French
- Weight
- 399 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0040-4020
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The terms A, B, and C are used for the description of diastereoisomers, whose configurations were not assigned conclusively. ## ' ) Due to the low amounts of pure 5A + Bin our hands, the oxidation was not repeated with CrO,/pyridine, the reagent which would have led to a higher yield of 2. MHz):
In connection with studies on the total synthesis of the aglycone of erythromycin B, erythronolide B (II), it was of interest to devise a method for the conversion of the cu,@-unsaturated ketone I to II. The ketone I is an especially attractive synthetic intermediate for several reasons including ac
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