Nano MgBiâ‚‚Oâ‚„: A Novel Green Catalyst for the One-step Cascade Condensation of Arylamines, Acetone and Isatins in Water

Journal of Chemical Sciences

MARYAM HAGHIGHI¹  KOBRA NIKOOFAR¹  ZAHRA KHADEMI¹ 

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关键词: MgBi₂;    O₄;    spiro compound;    multi-component reactions;    green chemistry.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Nano-size MgBiâ‚‚Oâ‚„ has been synthesized for the first time via a simple co-precipitation method using the surfactant N-cetyl-N, N,N-trimethylammonium bromide (CTAB). Fourier transform infrared (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray powder diffraction (XRD) techniques were employed to characterize the nano-catalyst. Additionally, the reactivity of the prepared nanoparticles was investigated in the synthesis of 1'-aryl-2'-(2-oxoindolin-3-yl)spiro[indoline-3,5'-pyrroline]-2,3'-diones in a one-pot, one-step and pseudo four-component condensation of arylamine, acetone, and isatins at 50â—¦C in water. Five new compounds were synthesized and identified. This procedure has various advantages such as, short reaction times, mild eco-friendly conditions and excellent yields to prepare a novel class of heteroaromatic compounds. MgBiâ‚‚Oâ‚„ possess superior qualities such as easy and economic preparation procedure and handling, stability, and non-toxicity. Its reusability has also been examined upto 4 runs without activity loss.

【 授权许可】

Unknown