A simple synthesis of 4-substituted 2,3-benzoxazinones from C-2 arylated 1,3-indanediones
โ Scribed by Suven Das; Pradyot Koley; Animesh Pramanik
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- French
- Weight
- 713 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
A simple one-pot procedure for the conversion of 2-hydroxy-2-(2 0 -hydroxy-aryl)-1,3-indanediones to 4substituted benzoxazinones has been developed. The process constitutes an interesting acid-catalyzed rearrangement followed by condensation with hydroxylamine.
๐ SIMILAR VOLUMES
## Abstract For Abstract see ChemInform Abstract in Full Text.
To form the radical by oxidation, the substance is shaken with a ten-fold excess of active PbO;! in benzene for 10 min. On rapid removal of the solvent, the reddish-brown solution affords an impure, reddish-brown paramagnetic product.