Efficient and Selective Dehydration of Fructose to 5-Hydroxymethylfurfural Catalyzed by Brønsted-Acidic Ionic Liquids

Synthesis of Pyrazolo[3,4-d]pyrimidin-4-

Synthesis of Pyrazolo[3,4-d]pyrimidin-4-ones Catalyzed by Br?nsted-acidic Ionic Liquids as Highly Efficient and Reusable Catalysts

✍ Niloofar Tavakoli-Hoseini; Raheleh Moloudi; Abolghasem Davoodnia; Mohammad Shake 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 136 KB

A convenient and efficient method for the synthesis of pyrazolo [3,4-d]pyrimidin-4-ones via heterocyclization reaction of 5-amino-1H-pyrazole-4-carboxamides with triethyl orthoesters using two Brønsted-acidic ionic liquids, as efficient homogeneous catalysts under solvent-free conditions is describ