Furan synthesis through AuCl3-catalysed cycloisomerisation of β-alkynyl β-ketoesters
作者:Arantxa Rodríguez、Wesley J. Moran
DOI:10.1016/j.tetlet.2011.03.086
日期:2011.5
AuCl3 efficiently catalyses the cycloisomerisation of readily available beta-alkynyl beta-ketoesters to generate trisubstituted furans. The substrate scope is wide and the reaction is high yielding and operationally simple. (C) 2011 Elsevier Ltd. All rights reserved.
Iodine-Catalyzed Synthesis of Substituted Furans and Pyrans: Reaction Scope and Mechanistic Insights
作者:Domenic P. Pace、Raphaël Robidas、Uyen P. N. Tran、Claude Y. Legault、Thanh Vinh Nguyen
DOI:10.1021/acs.joc.1c00608
日期:2021.6.18
Substituted pyrans and furans are core structures found in a wide variety of natural products and biologically active compounds. Herein, we report a practical and mild catalytic method for the synthesis of substituted pyrans and furansusing molecular iodine, a simple and inexpensive catalyst. The method described is performed under solvent-free conditions at an ambient temperature and atmosphere,