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Heterogeneous catalysts based on B/P/O for the monoetherification of 1,2-dihydroxybenzene in the gas phase

✍ Scribed by Lorenzo Calzolari; Fabrizio Cavani; Tiziana Monti

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
227 KB
Volume
3
Category
Article
ISSN
1387-1609

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Phosphomolybdic Acid (PMA)–SiO2 as a Het
Phosphomolybdic Acid (PMA)–SiO2 as a Heterogeneous Solid Acid Catalyst for the One-Pot Synthesis of 2H-Indazolo[1,2-b]phthalazine-triones
✍ Gowravaram Sabitha; Chitti Srinivas; Avula Raghavendar; Jhillu Singh Yadav 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 German ⚖ 149 KB 👁 1 views

## Abstract Phosphomolybdic acid (PMA)–SiO~2~ was found to be an efficient catalyst for the three‐component condensation reaction of phthalhydrazide, 1,3‐diketone, and aldehydes to produce 2__H__‐indazolo[1,2‐__b__]phthalazine‐triones in excellent yields. The catalyst can be recovered and reused wi