《A bis-acridinium macrocycle as multi-responsive receptor and selective phase-transfer agent of perylene》 was published in Angewandte Chemie, International Edition in 2020. These research results belong to Hu, Johnny; Ward, Jas S.; Chaumont, Alain; Rissanen, Kari; Vincent, Jean-Marc; Heitz, Valerie; Jacquot de Rouville, Henri-Pierre. Application In Synthesis of 2,6-Dibromopyridine The article mentions the following:
A bis-acridinium cyclophane incorporating switchable acridinium moieties linked by a 3,5-dipyridylanisole spacer was studied as a multi-responsive host for polycyclic aromatic hydrocarbon guests. Complexation of perylene was shown to be the most effective and was characterized in particular by a charge-transfer band as signal output. Effective catch and release of the guest was triggered by both chem. (proton/hydroxide) and redox stimuli. Moreover, the dicationic host was also easily switched between organic and perfluorocarbon phases for applications related to the enrichment of perylene from a mixture of polycyclic aromatic hydrocarbons. In the experiment, the researchers used 2,6-Dibromopyridine(cas: 626-05-1Application In Synthesis of 2,6-Dibromopyridine)
2,6-Dibromopyridine(cas: 626-05-1) belongs to pyridine. Pyridine’s structure is isoelectronic with that of benzene, but its properties are quite different. Pyridine is completely miscible with water, whereas benzene is only slightly soluble. Like all hydrocarbons, benzene is neutral (in the acid–base sense), but because of its nitrogen atom, pyridine is a weak base.Application In Synthesis of 2,6-Dibromopyridine