Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 6295-87-0, name is 1-Aminopyridinium Iodide. This compound has unique chemical properties. The synthetic route is as follows. Formula: C5H7IN2
General procedure: Potassium carbonate (9.0 mmol) for 3a-t or triethylamine (9.0 mmol) for 3u was added to a solution of 1-aminopyridinium iodide 1 (3.0 mmol) in acetonitrile (25 mL) for 3a-t or EtOH (25 mL) for 3u. The reaction mixtures were stirred vigorously for 10-20 min at room temperature to give a dark purple solution, to which electrophiles 2a-u (3.0 mmol) were added in one portion. The mixtures were stirred at rt for 3-24 h except for 3e, which was heated under reflux for 5h. Mixtures 3a-t were filtered to remove inorganic salts, which were washed with acetonitrile 3-5 times. The combined filtrates were concentrated in vacuo and the residues were purified either by gradient elution chromatography over silica gel and/or by recrystallization.
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Reference:
Article; Zhang, Hong; Wang, Zuoquan; Jabeen, Farukh; Gopinathan-Pillai, Girinath; Zhou, Wenfeng; Steel, Peter J.; Hall, C. Dennis; Katritzky, Alan R.; Tetrahedron Letters; vol. 57; 1; (2016); p. 20 – 24;,
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