An Efficient Approach to Functionalized Benzo[<i>a</i>]xanthones through Reactions of 2-Methyl-3-(1-alkynyl)chromones with Electron-Deficient Chromone-Fused Dienes
作者:Jian Gong、Fuchun Xie、Hong Chen、Youhong Hu
DOI:10.1021/ol101496w
日期:2010.9.3
An efficient tandem process was developed to synthesize diversified benzo[a]xanthones from 2-methyl-3-(1-alkynyl)chromones with electron-deficient chromone-fused dienes. This unusual reaction, involving multiple steps and not requiring the use of transition metal catalysts or an inert atmosphere, results in the formation of three new C−C bonds and one C−O bond.
开发了一种有效的串联方法,以从2-甲基-3-(1-炔基)色酮与电子不足的色酮稠合二烯合成多种苯并[ a ]氧杂蒽。这种不寻常的反应涉及多个步骤,不需要使用过渡金属催化剂或惰性气氛,导致形成三个新的C-C键和一个C-O键。