- Article
24 Citations
12,524 Views
10 Pages
Synthesis and Reactions of New 4-Oxo-4H-benzopyran-3-carboxaldehydes Containing Hydroxy Groups or 2-Oxopyran Cycles
- Margita Lacova,
- Dusan Loos,
- Mikulas Furdik,
- Maria Matulova and
- Hafez M. El-Shaaer
The synthesis of eight hydroxy- and 2-oxopyranochromone-3-carboxaldehydes 3, 5 and their reactions with 2-hydroxyaniline, 2,4-dinitrophenylhydrazine and 2-benzothiazolylhydrazine were investigated. Products were confirmed by IR, NMR spectral and elem...

