Fe3O4@ silica sulfuric acid nanoparticles: An efficient reusable nanomagnetic catalyst as potent solid acid for one-pot solvent-free synthesis of indazolo [2, 1-b] …

AR Kiasat, J Davarpanah - Journal of Molecular Catalysis A: Chemical, 2013 - Elsevier
Regarding the green chemistry's goals, silica-coated magnetite nanoparticles (MNPs) open
up new avenue to introduce an amazing and efficient system for facilitating catalyst recovery …

N, 2-Dibromo-6-chloro-3, 4-dihydro-2 H-benzo [e][1, 2, 4] thiadiazine-7-sulfonamide 1, 1-dioxide: An efficient and homogeneous catalyst for one-pot synthesis of 4 H …

A Khazaei, MA Zolfigol, F Karimitabar, I Nikokar… - RSC …, 2015 - pubs.rsc.org
N, 2-Dibromo-6-chloro-3, 4-dihydro-2H-benzo [e][1, 2, 4] thiadiazine-7-sulfonamide 1, 1-
dioxide (DCDBTSD) as a highly efficient and homogeneous catalyst was successfully …

A new natural based ionic liquid 3-sulfonic acid 1-imidazolopyridinium hydrogen sulfate as an efficient catalyst for the preparation of 2H-indazolo [2, 1-b] phthalazine-1 …

R Tayebee, M Jomei, B Maleki, MK Razi, H Veisi… - Journal of Molecular …, 2015 - Elsevier
A novel Brønsted acidic ionic liquid 3-sulfonic acid 1-imidazolopyridinium hydrogen sulfate
[Simp] HSO 4 was synthesized via the reaction of caffeine with chlorosulfonic acid and was …

Lewis acid free synthesis of 3, 4-dihydro-1 H-indazolo [1, 2-b] phthalazine-1, 6, 11 (2 H, 13 H)-triones promoted by 1, 1, 1, 3, 3, 3-hexafluoro-2-propanol

B Maleki, SS Ashrafi, R Tayebee - RSC Advances, 2014 - pubs.rsc.org
A convenient, environmentally friendly and efficient procedure for the synthesis 3, 4-dihydro-
1H-indazolo [1, 2-b] phthalazine-1, 6, 11 (2H, 13H)-trione derivatives has been developed …

Highly efficient three-component synthesis of 1H-indazolo[1,2-b]phthalazinetrione derivatives catalyzed by heteropolyacids

HJ Wang, XN Zhang, ZH Zhang - Monatshefte für Chemie-Chemical …, 2010 - Springer
Efficient one-pot condensation of aldehyde, dimedone, and phthalhydrazide has been
achieved in the presence of a catalytic amount of tungstosilicic acid under solvent-free …

A mesoporous silica/fluorinated alcohol adduct: an efficient metal-free, three-component synthesis of indazolophthalazinetrione heterocycles using a reusable …

S Rostamnia, E Doustkhah - Tetrahedron Letters, 2014 - Elsevier
The channels of mesoporous (SBA-15) represent a straightforward reactor for the rapid
synthesis of indazolophthalazinetrione skeletons via three-component coupling reactions in …

Solvent-free sonochemical one-pot three-component synthesis of 2H-indazolo [2, 1-b] phthalazine-1, 6, 11-triones and 1H-pyrazolo [1, 2-b] phthalazine-5, 10-diones

G Shukla, RK Verma, GK Verma, MS Singh - Tetrahedron letters, 2011 - Elsevier
A rapid and efficient one-pot three-component protocol for the synthesis of 2H-indazolo [2, 1-
b] phthalazine-1, 6, 11-triones 4 and 1H-pyrazolo [1, 2-b] phthalazine-5, 10-diones 6 has …

β-Cyclodextrin as a supramolecular catalyst for the synthesis of 2H-indazolo [2, 1-b] phthalazine-trione derivatives in water and their antimicrobial activities

AV Chate, PK Bhadke, MA Khande… - Chinese Chemical …, 2017 - Elsevier
An efficient and green method has been developed for the synthesis of 2H-indazolo [2, 1-b]
phthalazine-triones derivatives by employing 15 mol% β-cyclodextrinvia a one-pot …

Magnetic nanoparticles Fe3O4-supported guanidine as an efficient nanocatalyst for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones under solvent-free …

B Atashkar, A Rostami, H Gholami… - Research on Chemical …, 2015 - Springer
Here, the application of guanidine supported on magnetic nanoparticles Fe 3 O 4 (MNPs-
guanidine) as a novel magnetically separable base nanocatalyst is described. We have …

Experimental and theoretical study on one-pot, three-component route to 2H-indazolo [2, 1-b] phthalazine-triones catalyzed by nano-alumina sulforic acid

AR Kiasat, S Noorizadeh, M Ghahremani… - Journal of Molecular …, 2013 - Elsevier
A simple, efficient, and high yielding one-pot protocol for the synthesis of 2H-indazolo [2, 1-
b] phthalazine-trione derivatives has been developed by three-component coupling of …