Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 16250-08-1, name is 6-Aminopyridine-3-sulfonic acid. A new synthetic method of this compound is introduced below., Recommanded Product: 6-Aminopyridine-3-sulfonic acid
(ii) Bromine (99 g, 0.62 mol) was added dropwise over 1 h, to a hot solution of the sulphonic acid (108 g, 0.62 mol) in water (600 mL) so as to maintain a steady reflux. Once the addition was complete the reaction was cooled and the resulting mixture filtered. The solid was washed with water and dried under suction to afford pyridine-2-amino-3-bromo-5-sulphonic acid (53.4 g). 1H NMR (DMSO-d6) delta: 8.08 (s, 1H), 8.14 (s, 1H).
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Reference:
Article; Rawson, David J.; Ballard, Stephen; Barber, Christopher; Barker, Laura; Beaumont, Kevin; Bunnage, Mark; Cole, Susan; Corless, Martin; Denton, Stephen; Ellis, David; Floc’H, Marion; Foster, Laura; Gosset, James; Holmwood, Frances; Lane, Charlotte; Leahy, David; Mathias, John; Maw, Graham; Million, William; Poinsard, Cedric; Price, Jenny; Russel, Rachel; Street, Stephen; Watson, Lesa; Bioorganic and Medicinal Chemistry; vol. 20; 1; (2012); p. 498 – 509;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem