Preparation, characterization, and catalytic application of metallic nanocrystalline MgAl2O4 in the synthesis of 3-hydroxy-3-indolyl-indolin-2-ones, symmetrical and unsymmetrical 3,3′-bis(indolyl)indolin-2-ones, and 3,3′-bis(indolyl)methanes
作者： Kobra Nikoofar , Maryam Haghighi , Zahra Khademi
DOI: 10.1016/J.ARABJC.2016.01.013
关键词:
摘要: Abstract Nanocrystalline MgAl 2 O 4 has been synthesized via co-precipitation method and characterized by Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray (EDX), scanning electron microscopy (SEM), diffraction (XRD) techniques. The nanocatalyst utilized for the one-pot condensation of indoles isatins to prepare 3-hydroxy-3-indolyl-indolin-2-ones symmetrical unsymmetrical 3,3′-bis(indolyl)-indolin-2-ones. pseudo three-component various aldehydes also examined afford 3,3′-bis(indolyl)methanes. Short reaction times, reusability recovery nanocatalyst, in addition solvent-free media are some advantages this eco-friendly procedure.
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