A Domino Process for the Sustainable Synthesis of Quinazolin-4(3H)-ones with Direct Chemo- and Regioselective Bromination
作者:Ehsan Sheikhi、Mehdi Adib、Rozita Yazzaf、Mehdi Jahani、Mehdi Ghavidel
DOI:10.1055/s-0037-1610226
日期:2018.9
An efficient approach is reported for the direct and sustainable construction of quinazolin-4(3H)-ones through a three-component reaction of isatoic anhydride, primary amines, and bromoacetyl bromide or chloroacetyl chloride in the presence of K2CO3 in DMSO. With bromoacetyl bromide, mono- or dibrominated quinazolinone scaffolds were obtainable in a chemo- and regioselective manner.
据报道,在
DMSO 中存在 K2CO3 的情况下,通过
靛红酸酐、
伯胺和
溴乙酰溴或
氯乙酰氯的三组分反应,直接和可持续地构建
喹唑啉-4(3H)-酮的有效方法。使用
溴乙酰溴,可以通过
化学和区域选择性方式获得单
溴化或二
溴化
喹唑啉酮支架。