Synthesis of Isagarin, a New Type of Tetracyclic Naphthoquinone from Pentas longiflora
β Scribed by Kesteleyn, Bart; Puyvelde, Luc Van; Kimpe, Norbert De
- Book ID
- 121351306
- Publisher
- American Chemical Society
- Year
- 1999
- Tongue
- English
- Weight
- 47 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0022-3263
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Bioactive naphthoquinone-derived heterocyclic compounds have been prepared. Herein, we describe the semisynthesis of a new phenazine, through modified Hooker's reaction, using lapachol as a precursor. This compound was characterised by 2D NMR spectroscopy methods and X-ray analysis.
## Abstract New imidazoles were easily prepared from 2,3βdiaminoβ1,4βnaphthoquinone and stoichiometric quantities of the appropriate aldehydes in dimethyl sulfoxide as a solvent. The reaction proceeded for few hours. The procedure can be generalized to different classes of aldehydes. 2βMethylβ1__H_