EDDA-catalyzed rapid synthetic routes for biologically interesting polycycles bearing citrans and chalcones: the first total synthesis of sumadain A
作者:Xue Wang、Yong Rok Lee
DOI:10.1016/j.tet.2009.10.045
日期:2009.12
An efficient and concise synthetic route for biologically interesting polycycles bearing citran and chalcone nuclei was developed starting from a variety of trihydroxybenzenes with substituents on the ring. The key strategies involved an ethylenediamine diacetate-catalyzed cyclization by a domino aldol-type/electrocyclization/H-shift/hetero Diels–Alder reaction of trihydroxybenzenes and citral or trans
从环上带有取代基的各种三羟基苯开始,开发了一种有效且简捷的合成路线,用于合成具有柑桔和查尔酮核的生物学上令人感兴趣的多环。关键策略包括三羟苯与柠檬醛或反式,反式-反式法呢醛的多米诺骨牌羟醛型/电环化/ H-shift /杂狄尔斯-阿尔德反应对乙二胺二乙酸酯的催化环化作用。该方法已成功地用于合成三种天然产物,去苄基神经核蛋白,胭脂红,苏马丹A及其非天然衍生物。