Synthesis of New Pyrazolo[1,5-a]pyrimidine Derivatives via CT-Complexation
โ Scribed by Nasr K. Mohamed; Yusria R. Ibrahim; Alaa A. Hassan; Aboul-Fetouh E. Mourad
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 205 KB
- Volume
- 326
- Category
- Article
- ISSN
- 0365-6233
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Eingegangen am 16. Juli 1986 New 3-(pyridin-6-yl) pyraolo [ 1,5-u]pyrimidines were synthesized from (pyridin-6-y1)malonodinitrile 58, ethyl (pyridin-6-y1)cyanoacetate 5b and (pyridin-6-y1)benzoylacetonitrile 5c. Compounds 58-c were obtained from the 4,4,4-trichlorobut-2-enenitriles 2 and 1-pheny1et
## 2-Acetylbenzothiazole (1) reacts with dimethylformamide dimethylacetal (DMF-DMA) to afford the enaminone 2. Compound 2 reacts regioselectively with some nitrilimines 5a-d and nitrile oxides 6b-d to afford the novel pyrazole and isoxazole derivatives 11a-d and 12b-d, respectively, which react wi
Thiazolylcyanothioacetanilides react with โฃ-haloketones and haloesters to give the corresponding thiophene or thiazole derivatives according to the reaction conditions. Pyrazolo [1,5-a]pyrimidines and pyrazolo [5,1-c]triazines were synthesized by reaction of 3-amino-4-(4ะ-arylthiazol-2ะ-yl)-5-phenyl