作者:Louise F. Walker、Ahmed Bourghida、Stephen Connolly、Martin Wills
DOI:10.1039/b111097g
日期:2002.3.25
The insertion reaction of alkylidene carbenes is demonstrated to be an effective method for the synthesis of 2,5-dihydrofuran ring systems. The best results have been obtained on substrates containing electron-withdrawing substituents, which appear less prone to the competing rearrangement reaction. This insight has led to the development of a new method for the synthesis of the core structure of the squalestatin–zaragozic acid natural products.
已证明,烷叉亚甲基卡宾的插入反应是合成2,5-二氢呋喃环体系的有效方法。在含有吸电子取代基的底物上获得了最佳结果,这些底物似乎不太容易发生竞争性的重排反应。这一认识促进了合成角鲨烯内酯-扎戈唑酸天然产物核心结构新方法的发展。