Fast [3+2] Cycloaddition Synthesis of (±) Pterocarpans under Microwave Irradiation
作者:Claiton P. Ventura、Iara Maira de O. Viana、Eruzia A.E. Ferreira、Rossimiriam P. de Freitas、Rosemeire B. Alves
DOI:10.2174/157017810791514896
日期:2010.7.1
Herein we describe a method for the fast cycloaddition reaction of 2H-chromenes with 2-methoxy-1,4- benzoquinones by microwave heating. Using this methodology we have synthesised seven pterocarpans derivatives, five of which are novel compounds. Microwave heating allows significant yield enhancements and reduction of reaction time when compared to traditional methodology.
在此,我们介绍了一种通过微波加热使 2H-苯并吡喃与 2-甲氧基-1,4-苯醌发生快速环化反应的方法。利用这种方法,我们合成了七种紫檀衍生物,其中五种是新型化合物。与传统方法相比,微波加热可显著提高产量并缩短反应时间。