Abstract
An environmentally friendly and recyclable nanocomposite (HNMPCl/ZnCl2/SBA-15) was prepared by impregnation of N-methylpyrrolidonium-zinc chloride based deep eutectic solvent (HNMPCl/ZnCl2) on SBA-15. The catalytic activity of HNMPCl/ZnCl2/SBA-15 was investigated towards the one-pot three-component Mannich type reaction to a series of aldehydes, ketones, and amines and provided excellent activity and selectivity for the synthesis of β-amino ketones under mild reaction condition in green solvent. The HNMPCl/ZnCl2/SBA-15 was prepared using simple method from readily available starting material and was confirmed by FTIR, SEM, XRD, BET, and EDX. This protocol features green and efficient catalyst, ease of work up, simple separation without chromatography and reusability of the HNMPCl/ZnCl2/SBA-15 for four runs are the important highlights of this process, that it will find a wide variety of applications in academic and industrial research.
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