Preparation and structures of some new 1H-pyrazole derivatives
✍ Scribed by Wang, Dun-Jia; Kang, Yan-Fang; Zheng, Chun-Yang; Wei, Xian-Hong
- Book ID
- 120535046
- Publisher
- Springer Netherlands
- Year
- 2012
- Tongue
- English
- Weight
- 331 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0922-6168
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The new 1H‐pyrazole‐3‐carboxylic acid **2**, pyridazin‐3(2H)‐one **3**, and their various derivatives were prepared by the reactions of the 4‐benzoyl‐5‐phenyl‐2,3‐dihydro‐2,3‐furandione **1** and 2,5‐dichlorophenylhydrazine. Pyrazolo[3,4‐d]pyridazine **7** was obtained from cyclization
## Abstract magnified image A series of pyrazolo [3,4‐d] pyrimidine, pyrazolo [1,5‐a] pyrimidine, and pyrazolyl triazoles have been prepared __via__ reaction of ethyl 5‐amino‐3‐phenylpyrazole‐4‐carboxylate with isothiocyanic esters, α,β‐unsaturated nitriles, and some active methylene reagents. J. H