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http://nopr.niscpr.res.in/handle/123456789/6224| Title: | Synthesis of pyrazolines promoted by Amberlyst-15 catalyst |
| Authors: | Holla, B Shivarama Mahalinga, M Poojary, Boja Ashok, Mithun Akberali, P M |
| Keywords: | Pyrazolines;propenones;cyclization;Amberlyst–15 catalyst |
| Issue Date: | Feb-2006 |
| Publisher: | CSIR |
| IPC Code: | Int.Cl.7 C 07 D |
| Abstract: | The condensation of a series of aromatic ketones with aromatic aldehydes under aldol conditions affords 1-aryl-3-(substitutedphenyl/phenyl furanyl/thienyl)-2-propen-1-ones 1. The resulting propenones undergo facile and clean cyclization with hydrazine and substituted hydrazine derivatives to yield 3-aryl-5-(substitutedphenyl/phenylfuranyl/thienyl)-2-pyrazolines 2. This reaction is carried out in the presence of Amberlyst–15 catalyst to afford the above pyrazolines 2 in considerably good yield. All the synthesized compounds have been characterized by spectral studies. |
| Page(s): | 568-571 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.45B(02) [February 2006] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 45B(2) 568-571.pdf | 114.91 kB | Adobe PDF | View/Open |
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