✦ LIBER ✦
Tungstophosphoric Acid Supported on Highly Organosoluble Polyamide (PW12/PA): Highly Efficient Catalysts for the Synthesis of Novel 1,3,5-Triaryl-2-pyrazoline Derivatives
✍ Scribed by Razieh FAZAELI; Hamid ALIYAN; Shadpour MALLAKPOUR; Zahra RAFIEE; Maryam BORDBAR
- Book ID
- 104452954
- Publisher
- Elsevier Science
- Year
- 2011
- Weight
- 265 KB
- Volume
- 32
- Category
- Article
- ISSN
- 1872-2067
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✦ Synopsis
A novel compound constructed from polyoxometalate (H 3 PW 12 O 40 , PW 12 ) and poly(amidoamine) (PA) was prepared at room temperature in an aqueous solution by an impregnation method. A series of novel 1,3,5-triaryl-2-pyrazoline derivatives was synthesized by the reaction between chalcone and phenylhydrazine in the presence of the title compound, PW 12 /PA, in high yields. The structures of the compounds obtained were determined by IR and 1 H NMR spectra.