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Can I read Alstonia scholaris: Struktur des Indolalkaloides Narelin on EtoBox?
Alstonia scholaris: Struktur des Indolalkaloides Narelin by Yutaka Morita; Manfred Hesse; Hans Schmid; Avijit Banerji; (Mrs.) Julie Banerji; (Mrs.) Asima Chatterjee; Willi E. Oberhänsli is a Chemistry article available to read on EtoBox.
What is Alstonia scholaris: Struktur des Indolalkaloides Narelin about?
**__Alstonia scholaris__: The structure of the indole alkaloid nareline** Besides the known akuammidine, picralinal, picrinine and pseudoakuammigine a new indole alkaloid called nareline (__M__=352) was isolated from __Alstonia scholaris__ R. BR., which belongs to the plant family of __Apocynaceae__. Its structure **2** was deduced by single crystal X‐ray diffraction. **2** represents the absolute configuration. The spectroscopic data of **2** and its derivatives __(Scheme 1)__ as well as their chemical behavior support this structure. In biogenetic sense nareline is related to the bases akuammiline (**4**) and picraline (**5**) __(Scheme 2)__. In contrast to those the C‐atom 5 is exocyclic and represents an aldehyde group which forms together with the oxygen atom of the N (4)‐hydroxylamine group a cyclic half acetale. ‐ By oxidation (CrO~3~/CH~3~COOH) of **2** the oxindol derivative **19** (oxonareline) is formed which contains a cyclic acetal as a partial structure element __(Scheme 4)__.
Who reads Alstonia scholaris: Struktur des Indolalkaloides Narelin?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Yutaka Morita; Manfred Hesse; Hans Schmid; Avijit Banerji; (Mrs.) Julie Banerji; (Mrs.) Asima Chatterjee; Willi E. Oberhänsli
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley (ISSN 0018-019X)
- Published
- 1977
- Language
- EN
- Field
- Chemistry (Physical Sciences)