作者:Xiaoqi Kong、Huantian Zhao、Yu Tang
DOI:10.1016/j.tet.2023.133546
日期:2023.9
imidazole-2-yl)benzene-1,4-diol were obtained in yields among 51–93%. A reasonable mech-anism involving promotion of CuBr2 to 3,6-dihydroxyphthalonitrile is proposed based on experimental results. The optical properties of some products were determined, which resulted in a potential proton transferring dye, 3e (1,3-bis(2-methoxyphenylimino)-isoindoline-4,7-diol), and a pH fluorescent probe in pH range of 7.00–9
开发了一种新颖、简单且高效的 CuBr 2催化 3,6-二羟基邻苯二甲腈与芳胺反应生产 1,3-双(芳基亚氨基)异吲哚啉。在最佳条件下,以收率得到了13种1,3-双(芳基亚氨基)异吲哚啉衍生物和1种2,3-双( 1H-苯并[ d ]-咪唑-2-基)苯-1,4-二醇。 51-93%之间。根据实验结果,提出了CuBr 2生成3,6-二羟基邻苯二甲腈的合理机理。确定了一些产品的光学性质,从而产生了潜在的质子转移染料3e(1,3-双(2-甲氧基苯基亚氨基)-异吲哚啉-4,7-二醇)和 pH 范围为 7.00 的 pH 荧光探针–9.30,3f _(1,3-双(4-羟基苯基亚氨基)-异吲哚啉-4,7-二醇)。