A Convenient, Rapid, and Highly Selective Method for Synthesis of New Pyrazolo[1,5-a]pyrimidines via the Reaction of Enaminones and 5-Amino-1H-pyrazoles under Microwave Irradiation.

A convenient, rapid, and highly selectiv

A convenient, rapid, and highly selective method for synthesis of new pyrazolo[1,5-a]pyrimidines via the reaction of enaminones and 5-amino-1H-pyrazoles under microwave irradiation

✍ Li Ming; Wang Shuwen; Wen Lirong; Yang Huazheng; Zhang Xiuli 📂 Article 📅 2005 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 76 KB

## Abstract Twelve new 7‐aryl‐3‐cyanopyrazolo[1,5‐__a__]pyrimidines (**3a‐f**) and ethyl 7‐arylpyrazolo[1,5‐__a__]pyrimidine‐3‐carboxylates (**3g‐l**) have been conveniently synthesized by the reaction of enaminones with 5‐amino‐1__H__‐pyrazoles in good yields under microwave irradiation. With one