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Four-component synthesis of 2H-indazolo[2,1-b]phthalazine-1,6,11(13H)-trione derivatives

โœ Scribed by Hamid Reza Shaterian; Morteza Aghakhanizadeh


Book ID
119222829
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
407 KB
Volume
15
Category
Article
ISSN
1631-0748

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A new, efficient, and environmentally benign protocol for the one-pot, four-component synthesis of 2,2dimethyl-13-phenyl-2,3-dihydro-1H-indazolo[2,1-b]phthalazine-1,6,11(13H)-trione by condensation of phthalic anhydride, hydrazinium hydroxide, aromatic aldehydes, and dimedone catalyzed by Ce(SO 4 )

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## Abstract magnified image A simple, efficient, and costโ€effective method for the synthesis of 2__H__โ€indazolo[2,1โ€__b__]phthalazineโ€1,6,11(13__H__)โ€trione derivatives by a oneโ€pot, threeโ€component condensation reaction of phthalazide, dimedone, or 1,3โ€cyclohexanedione and aromatic aldehydes unde