A New Route to Acridines: Pauson-Khand Reaction on Quinoline-Bearing 1-En-7-ynes Leading to Novel Tetrahydrocyclopenta[<i>c</i>]acridine-2,5-diones
作者:Philippe Belmont、Amaury Patin
DOI:10.1055/s-2005-870016
日期:——
Efficient Pauson-Khand reactions on quinolines bearing 1-en-7-ynes features gave tetrahydrocyclopenta[c]acridine derivatives. The quinoline intermediates were obtained in two steps: a Sonogashira reaction with functionalized alkynes (TMS, Bu, Ph, CHB 2 OTHP) followed by a Grignard reaction with allylmagnesium bromide. The sequence provides new acridine structures in four high yielding steps from commercially
对具有 1-en-7-ynes 特征的喹啉进行有效的 Pauson-Khand 反应得到四氢环戊二烯 [c] 吖啶衍生物。喹啉中间体分两步获得:与官能化炔烃(TMS、Bu、Ph、CHB 2 OTHP)的 Sonogashira 反应,然后与烯丙基溴化镁的格氏反应。该序列在四个高产步骤中从市售的喹啉中提供了新的吖啶结构。