Application of Silica Gel-supported Polyphosphoric Acid (PPA/SiO<sub>2</sub>) as a Reusable Solid Acid Catalyst for One-Pot Multi-Component Synthesis of 3,4,5-substituted furan-2(5H)-ones
Application of Silica Gel-supported Polyphosphoric Acid (PPA/SiO<sub>2</sub>) as a Reusable Solid Acid Catalyst for One-Pot Multi-Component Synthesis of 3,4,5-substituted furan-2(5H)-ones
作者:Razieh Doostmohammadi、Nourallah Hazeri
DOI:10.2174/1570178611310030010
日期:2013.4.1
3,4,5-substituted furan-2(5H)-ones were One-Pot Multi-Component synthesized by the reaction of aldehydes,
amines and dialkyl acetylenedicarboxylates using silica gel-supported polyphosphoric acid (PPA/SiO2) at room temperature.
This reaction provides a convenient and efficient synthetic method of furan-2(5H)-one derivatives, and also reusability
of catalyst.
A facile one-pot synthesis of 3,4,5-substituted furan-2(5H)-one derivatives from a three-component reaction of aniline derivatives, dialkylacetylenedicarboxylates and aromatic aldehydes under mild conditions using tetra-n-butylammonium bisulfate as a catalyst has been developed. (C) 2013 Malek Taher Maghsoodlou. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.