One-pot three-component synthesis of 1-amidoalkyl naphthols and polyhydroquinolines using a deep eutectic solvent: a green method and mechanistic insight
The multicomponent synthesis of 1-amidoalkyl naphthols and polyhydroquinolines has been developed as an atom-economic procedure catalyzed by a deepeutecticsolvent ([CholineCl][ZnCl2]3). The reactions proceed smoothly at low temperatures for a short reaction time without the use of toxic and volatile organic solvents. Deepeutecticsolvents are capable of not only allowing multicomponent reactions
An atom-efficient and environment-friendly approach for the synthesis of amidoalkyl naphthols (4a-x) via multicomponent one-pot reaction of 2-naphthol (1), aromatic aldehyde (2) and amide (3) catalyzed by P2O5 has been developed. The present approach offers several advantages such as reduced reaction times, moderate temperature, higher yields, eco-friendly reaction condition, easy purification and economic availability of the catalyst. (C) 2009 Elsevier Ltd. All rights reserved.
Eco-friendly synthesis of amidochloroalkylnaphthols and its related oxazepinones with biological evaluation
作者:Hanan A. Soliman、Ahmed Y. Mubarak、Ahmed El-Mekabaty、Hanem M. Awad、Saad S. Elmorsy
DOI:10.1007/s00706-015-1536-2
日期:2016.4
AbstractA general mild and efficient protocol for the synthesis of amidochloroalkylnaphthol libraries was achieved utilizing SiO2–ZnCl2 (silzic) as a reusable heterogeneous catalyst via Ritter-typereaction, through one-pot, three-component condensation of various aldehydes, chloroacetonitrile, and β-naphthol under solvent-free reaction conditions. The amidochloroalkylnaphthols were cyclized to its