Dual reactivity of 1,2-disubstituted dihydro-N-heteroaromatic systems. 9. Alkaline hydrolysis and aromatization of N-actyl partially hydrogenated derivatives of pyrazine and quinoxaline
the synthesis of mono and 2,3-disubstitutedquinoxalines by using a AlCl3 induced (hetero)arylation of 2,3-dichloroquinoxaline. Both symmetrical and unsymmetrical 2,3-disubstitutedquinoxalines can be prepared conveniently by using this method under appropriate reaction conditions. The reaction proceeds via C–C bond formation and can be utilized for the preparation of a variety of quinoxaline derivatives
Diindolylquinoxalines: Effective Indole-Based Receptors for Phosphate Anion
作者:Jonathan L. Sessler、Dong-Gyu Cho、Vincent Lynch
DOI:10.1021/ja067720b
日期:2006.12.1
quinoxalines (DIQ), as well as a comparison of their anion recognition properties to those of our previously reported pyrrole based sensors, 2,3-dipyrrol-2'yl quinoxalines, is reported. To the best of our knowledge, this new DIQ system represents the first example of a free-standing indole-based small molecule receptor for which evidence of anion binding is available both in solution and in the solid-state