Original Article
Green and diastereoselective synthesis of trans-3-(5-methylisoxazol-3-yl)-3,4-dihydro-2H-naphtho[2,3-e][1,3]oxazines
Authors
- Mehdi Shafiee 1
- Ahmad Reza Khosropour 2
- Iraj Mohammadpoor-Baltork 2
- Majid Moghadam 2
- Shahram Tangestaninejad 2
- Valiollah Mirkhani 2
- Hamid Reza Khavasi 3
Abstract
Reaction between aromatic aldehydes and 3–methyl-1-phenyl-2-pyrazoline-5-one catalyzed by nano-SiO2/HClO4 in water under reflux provided a simple and efficient route for the synthesis of 4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)(aryl)methyl)-3-methyl-1-phenyl-1H-pyrazol-5-ol derivatives in high yields.