1278520-04-9Relevant articles and documents
One-pot and solvent-free synthesis of aliphatic and aromatic 1H-indazolo[2,1-b]phthalazinetriones catalyzed by boron sulfonic acid
Soheilizad, Mehdi,Adib, Mehdi,Sajjadifar, Sami
, p. 1353 - 1356 (2014)
An efficient and simple method for the synthesis of aliphatic and aromatic 1H-indazolo[2,1-b]phthalazinetrione derivatives through a one-pot three-component condensation of phthalhydrazide, aldehyde, and dimedone in the presence of boron sulfonic acid as
A New Versatile Protocol for the Synthesis of Indazolophthalazinetriones
Habibi,Shojaei,Heydari
, p. 85 - 90 (2021/03/09)
Abstract: Potassium hydrogen sulfate (KHSO4) andtrifluoromethanesulfonic acid(CF3SO3H) were separately usedas efficient catalysts for the one-pot three-component synthesis of a series ofindazolophthalazinetriones from vari
An efficient and recyclable bifunctional acid-base ionic liquid for synthesis of 1H-indazolo[1,2-b]phthalazinetriones
Habibi, Davood,Shamsian, Atefeh
, p. 6245 - 6255 (2015/08/18)
Abstract A bifunctional ionic liquid, 1,4-dimethyl(4-sulfobutyl)piperazinium hydrogen sulfate ([DMSBP][HSO4], 1), containing both acid and basic sites was prepared. This ionic liquid was used as a homogeneous and reusable catalyst and efficiently promoted synthesis of 1H-indazolo[1,2-b]phthalazinetriones (5a-m) in a one-pot, four-component condensation reaction of phthalic anhydride, hydrazinium hydroxide, dimedone, and aromatic aldehydes under solvent-free conditions at 80 °C. Advantages of the method include short reaction time, high yields, and simple purification.
One-pot synthesis of aliphatic and aromatic 2H-indazolo[2,1-b]phthalazine- triones catalyzed by N-halosulfonamides under solvent-free conditions
Ghorbani-Vaghei, Ramin,Karimi-Nami, Rahman,Toghraei-Semiromi, Zahra,Amiri, Mostafa,Ghavidel, Mehdi
experimental part, p. 1930 - 1937 (2011/04/18)
N, N, N′, N′-Tetrabromobenzene-1,3-disulfonamide and poly(N-bromo-N-ethylbenzene-1,3-disulfonamide) were used as efficient catalysts for the one-pot synthesis of aliphatic and aromatic 2H-indazolo[2,1-b] phthalazine-triones in excellent yields from aldehy