Ketones from “mayur pankhi” : some new cuparene-based sesquiterpenoids
✍ Scribed by G.L. Chetty; Sukh Dev
- Book ID
- 104223472
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- French
- Weight
- 188 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
THE essential oil from the wood of "mayur pankhlal is a complex blend of sesqulterpene hydrocarbons t-40$), alcohols (-SC%), ketones ( -4%) and monoterpenlc aolds (-4%). Though the chief components of hydrocarbons, alcohols and acids are all known compounds, the ketone portion yielded six new sesqulterpenolds (Table I), and we report now on the structures of two of these (ketones IV, V). These have been shown to belong to the auparene group of sesqulterpenolds, a new type first reported by Enzell and Pdtman ln 19S32, and of which only two members -cuparene and cuparenlc acid -were known till now. Ketone v, ClSR200, (semlcarbazone, m.p. 213.5-215') Is clearly a cYc1opentanone ( vc=' 1746 cm") and from Its 1 There is some confusion In the literature as to the botanical Identification of *mayur par&hi" as Thula orientalis L or -Aa co-'C.Ruzell and R.Pdtman, Tetra 2, 361 (1958).