A green protocol for the synthesis of conformationally rigid sulfur linked bisquinolines by double Friedlander reaction in water
作者:Nidhin Paul、Shanmugam Muthusubramanian、Nattamai Bhuvanesh
DOI:10.1039/c1nj20539k
日期:——
bis(2-aryl-4-arylquinolin-3-yl)sulfanes and 1,2-bis(2-aryl-4-arylquinolin-3-yl)disulfanes were synthesised in good to excellent yields by double Friedlander reaction between 2-[(2-oxo-2-arylethyl)sulfanyl]-1-aryl-1-ethanones/2-[(2-oxo-2-arylethyl)disulfanyl]-1-aryl-1-ethanones and 2-aminobenzophenone with p-toluenesulfonic acid in water medium. An interesting restricted rotation of aryl rings has been noticed in b
通过两次Friedlander反应,以良好的收率合成了一系列的双(2-芳基-4-芳基喹啉-3-基)硫烷和1,2-双(2-芳基-4-芳基喹啉-3-基)二硫烷。 2-[((2-氧代-2-芳基乙基)硫烷基] -1-芳基-1-乙炔/ 2 / [[(2-氧代-2-芳基乙基)二硫烷基] -1-芳基-1-乙酮和 2-氨基二苯甲酮 和 对甲苯磺酸 在 水中等的。如NMR和晶体数据所示,在双(2-芳基-4-芳基喹啉-3-基)硫烷中注意到了芳基环的一个有趣的受限制的旋转。