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Relevant academic research and scientific papers

Water mediated reactions: TiO2 and ZnO nanoparticle catalyzed multi component domino reaction in the synthesis of tetrahydroacridinediones, acridindiones, xanthenones and xanthenes

Eco-accommodation of TiO2 nanorods in the four component Domino reaction for the framing of 9-(2-oxo-1,2-dihydroquinolin-3-yl)-10-phenyl-3,4,6,7-tetrahydroacridine-1,8-(2H,5H,9H,10H)-diones 4 from 1,3-cyclohexanedione and/or dimedone 1, 2-chloro-3-formylquinoline 2 and anilines 3 in water at 90 °C are accounted for. The present methodology offers a domino reaction strategy, high yield, simple operation, recyclability and is eco-friendly. In addition, a productive, highly chemoselective ZnO catalyzed, water mediated, microwave aided synthesis of functionalized xanthenes and xanthenones 7 and acridinediones 8 in excellent yields is reported through an environmentally benevolent strategy. This journal is

9-(4-methoxyphenyl)-10-phenyl-3,4,6,7,9,10-hexahydro-1,8(2H,5H)- acridinedione

In the title compound, C26H25NO3, the central ring adopts a distorted boat conformation and the outer rings adopt half-chair conformations. The molecule is stabilized by C-H...O-type hydrogen bonds.

Efficient iron catalyzed ligand-free access to acridines and acridinium ions

Acridines and acridinium ions are one of the important classes of compounds in terms of their usefulness in pharmaceuticals, materials, dyes and photo-catalysis. Here we present an unconventional FeCl3-alcohol catalysed one-pot method for their

Ionic liquid immobilized on Fe3O4 nanoparticles: A magnetically recyclable heterogeneous catalyst for one-pot three-component synthesis of 1,8- dioxodecahydroacridines

A magnetically recoverable nanocatalyst based on 1-methylimidazolium hydrogen sulfate ionic liquid has been synthesized by reaction of 1-methylimidazole with 3-(trimethoxysilyl)propyl chloride group, leading to formation of 1-methyl-3- (triethoxysilyl)propyl imidazolium chloride ([pmim]Cl). The ionic liquid was anchored onto silica-coated magnetic Fe3O4 particles, and Cl- anion exchange by treatment with H2SO4 afforded the corresponding immobilized ionic liquid MNP- [pmim]HSO4. The synthesized catalyst was characterized by various techniques such as Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), (differential) thermogravimetry (TG/DTG), CHN analysis, and vibratingsample magnetometry (VSM), revealing the superparamagnetic nature of the particles. From electron microscopy (SEM and TEM) studies it can be inferred that the particles were mostly spherical in shape with average size of 20 nm. The loading amount of ionic liquid supported on the magnetic particles was indicated to be 0.98 mmol/g by the results of elemental and thermogravimetric analyses (CHN and TG). The catalytic activity of the supported ionic liquid was examined in synthesis of 1,8-dioxodecahydroacridines by condensation reaction of cyclic diketones with aromatic aldehydes and ammonium acetate or primary amines under solvent-free conditions. The catalyst could be easily recovered by applying an external magnetic field and reused for at least nine runs without deterioration in catalytic activity.

Ceric ammonium nitrate (CAN) catalyzed synthesis of N-substituted decahydroacridine-1,8-diones in PEG

Polyethylene glycol (PEG) was found to be an inexpensive non-toxic and effective medium for the one-pot synthesis of N-substituted decahydroacridine-1,8-diones in the presence of ceric ammonium nitrate (CAN) as the catalyst in high yields. Also, the solve

A green procedure for the synthesis of 1,8-dioxodecahydroacridine derivatives under microwave irradiation in aqueous media without catalyst

(Chemical Equation Presented) A green procedure for the synthesis of 1,8-dioxo-decahydroacridine derivatives is developed under microwave irradiation without catalyst in water. This method provides several advantages such as excellent yields (86-96%), simple workup procedure, and environment friendliness.

Tris(pentafluorophenyl)borane-catalyzed three-component reaction for the synthesis of 1,8-dioxodecahydroacridines under solvent-free conditions

A mild and efficient method for the synthesis of 1,8- dioxodecahydroacridines has been developed. The synthesis proceeds via a three-component reaction of a 1,3-dione, an aldehyde and an amine, under solvent-free conditions, catalyzed by tris(pentafluorophenyl)borane [B(C 6F5)3]. The mildness of the catalyst was demonstrated by studying the reaction of 1,3-cyclohexanedione with various aldehydes and amines which gave the 1,8-dioxo-decahydroacridines in high yields.