Studies on aminoazoles: Synthesis of Pyrazolo[1,5-a]-pyrimidines and their aza derivatives
β Scribed by Dr. Galal H. Elgemeie; Dr. Ahmed H. Elghandour; Dr. Hamdy M. Elshimy
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 436 KB
- Volume
- 331
- Category
- Article
- ISSN
- 1615-4150
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## Abstract magnified image Pyrazolo[1,5β__a__]pyrimidine and imidazo[1,2β__b__]pyrazole derivatives were synthesized __via__ intermolecular azaβWittig reaction of 5β(triphenylphosphoranylideneamino)β3βphenylpyrazole **3** derived from 5βaminoβ3βphenylpyrazole with some selected Ξ±βchloroketones.
## Abstract magnified image A series of pyrazolopyrimidine and pyrazoloquinozoline derivatives has been synthesized in one step by multicomponent reactions using, 5βaminopyrazole, __pβ__substitutedbenzoylacetonitrile/dimedone and triethylorthoesters. pyrazolopyrimidine derivatives were also studie