Synthesis of 2-(<i>p</i>-R-benzoylmethylene)-3-(<i>p</i>-R-phenyl)-1<i>H</i>-quinoxalines
作者:Braulio Insuasty、Fernando Fernéandez、Jairo Quiroga、Rodolfo Moreno、Roberto Martinez、Enrique Angeles、Rubéan Gaviñto、Regina H. S. De Almeida
DOI:10.1002/jhet.5570350432
日期:1998.7
The reaction of 1,2-diaminobenzenes with substituted 1,2-dibenzoyl-1,2-dibromoethanes constitutes a convenient synthetic route to the hitherto 2-(p-R-benzoylmethylene)-3-(p-R-phenyl)-1H-quinoxalines. Structures of all products were elucidated by ir, 1H and 13C-nmr, mass spectra data. X-Ray crystallography data confirm assigned structures.
1,2-二氨基苯与取代的1,2-二苯甲酰基-1,2-二溴乙烷的反应构成了迄今2-(对-R-苯甲酰基亚甲基)-3-(对-R-苯基)-1的便捷合成路线H-喹喔啉。通过ir,1 H和13 C-nmr质谱数据阐明了所有产物的结构。X射线晶体学数据证实了指定的结构。