Conversion of dihydroalantolactone to eremophilane-type derivatives: A biogenetic-type transformation
โ Scribed by Isao Kitagawa; Yasushi Yamazoe; Reiji Takeda; Itiro Yosioka
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- French
- Weight
- 225 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0040-4039
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Cyperanes, eremophilanes and spirovetivanes have been prepared by acid catalyzed rearrangement of 3-keto-4,5-epoxy-eudesmanes. These transformations are of biogenetic significance and reinforce the hypothesis that the oxigenate eudeemanes are precursors of several sesquiterpene skeletons. Recently w
a-Aminonitriles were converted exclusively to the amides by 2-mercaptoethanol in anhydrous THF at -78ยฐC by bubbling dry HCl gas Nitrile compounds have been hydrolyzed to amides by base in alcohols by HCl in HCOOH 2a or MeOH2b. by hv3, or by Ni4a, COAX, or Pd4' ion cataly:Isor ::::~~~~' thermal decom