Efficient Synthesis of Quinoxaline Derivatives by Selective Modification of 3-Chloro-6-fluoroquinoxalin-2(1<i>H</i>)-one 4-Oxide
作者:Jan Maichrowski、Mimoza Gjikaj、Eike G. Hübner、Bärbel Bergmann、Ingrid B. Müller、Dieter E. Kaufmann
DOI:10.1002/ejoc.201201569
日期:2013.4
The readily available and polyfunctionalized 3-chloro-6-fluoroquinoxalin-2(1H)-one 4-oxide, derived from the efficient one-step annulation reaction of 1,1,2-trichloro-2-nitroethene with 4-fluoroaniline, was selectively modified at the chloronitrone and the amide units, leading to more than 30 new quinoxaline derivatives with a unique substitution pattern in good to excellent yields. In addition, the
易于获得的多官能化 3-chloro-6-fluoroquinoxalin-2(1H)-one 4-oxide,源自 1,1,2-trichloro-2-nitroethene 与 4-fluoroaniline 的高效一步环化反应,是在氯硝酮和酰胺单元上进行选择性修饰,产生了 30 多种新的喹喔啉衍生物,它们具有独特的取代模式,产率很高。此外,通用起始化合物的电子性质是通过密度泛函理论计算的,这对其独特的反应性给出了合理的解释。已经研究了所有迄今为止未知的化合物的抗疟活性。