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Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.45B [2006] >
IJC-B Vol.45B(02) [February 2006] >
| 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) |
| Source: | IJC-B Vol.45B(02) [February 2006]
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