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Phosphomolybdic Acid (PMA)–SiO2 as a Heterogeneous Solid Acid Catalyst for the One-Pot Synthesis of 2H-Indazolo[1,2-b]phthalazine-triones

✍ Scribed by Gowravaram Sabitha; Chitti Srinivas; Avula Raghavendar; Jhillu Singh Yadav

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
149 KB
Volume
93
Category
Article
ISSN
0018-019X

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✦ Synopsis

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 without significant loss of activity.

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