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Dodecylphosphonic acid (DPA): a highly efficient catalyst for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones under solvent-free conditions

โœ Scribed by Mazaahir Kidwai; Anwar Jahan; Ritika Chauhan; Neeraj Kumar Mishra


Book ID
113930559
Publisher
Elsevier Science
Year
2012
Tongue
French
Weight
234 KB
Volume
53
Category
Article
ISSN
0040-4039

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Phosphomolybdic Acid (PMA)โ€“SiO2 as a Het
โœ Gowravaram Sabitha; Chitti Srinivas; Avula Raghavendar; Jhilluโ€…Singh Yadav ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons ๐ŸŒ German โš– 149 KB ๐Ÿ‘ 1 views

## Abstract Phosphomolybdic acid (PMA)โ€“SiO~2~ was found to be an efficient catalyst for the threeโ€component condensation reaction of phthalhydrazide, 1,3โ€diketone, and aldehydes to produce 2__H__โ€indazolo[1,2โ€__b__]phthalazineโ€triones in excellent yields. The catalyst can be recovered and reused wi