Xanthene-4,5-diamine derivatives: a study of anion-binding catalysis
作者:Alison E. Metz、Kailasham Ramalingam、Marisa C. Kozlowski
DOI:10.1016/j.tetlet.2015.07.058
日期:2015.9
This study describes the synthesis of a class of anion-binding catalysts based on a xanthene scaffold. Both unsymmetrical catalysts and C-2-symmetrical catalysts were generated, and were examined in the cyclization of 3- and 2-substituted furans onto N-acyliminium ions. Good conversion for each reaction was observed with a variety of anion-binding catalysts (42-76%). (C) 2015 Elsevier Ltd. All rights reserved.