One-pot straightforward approach to 2,3-disubstituted benzo/naphtho[b]furans via domino annulation of α-oxoketene dithioacetals and 1,4-benzo/naphthoquinone mediated by AlCl3 at room temperature
作者:Girijesh Kumar Verma、Rajiv Kumar Verma、Gaurav Shukla、Nagaraju Anugula、Abhijeet Srivastava、Maya Shankar Singh
DOI:10.1016/j.tet.2013.05.128
日期:2013.8
versatile and convenient one-pot direct approach to 2,3-disubstituted benzo/naphtho[b]furans via domino annulation of α-oxoketene dithioacetals and 1,4-benzo/naphthoquinone has been achieved in the presence of aluminium chloride at room temperature. This protocol represents an extremely simple, straightforward and rapid entry to highly substituted benzo/naphtho[b]furans in good yields from easily viable
在室温下存在氯化铝的情况下,通过α-氧杂环丁烯二硫缩醛和1,4-苯并/萘醌的多米诺环化反应,获得了一种通用且方便的一锅直接方法,用于2,3-二取代的苯并/萘并[ b ]呋喃。该方案代表了在温和的反应条件下,从容易生存的起始原料中以极高的收率非常容易,直接,迅速地进入高度取代的苯并/萘并[ b ]呋喃。