452-58-4, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 452-58-4, name is 2,3-Diaminopyridine. This compound has unique chemical properties. The synthetic route is as follows.
A solution of pyridinediamine (IX), (X), (45.8 mmoles), acetic acid (458.0 mmoles) in PPA (50 ml) was heated to 135-14O0C for 2-4 h under nitrogen atmosphere. After completion of reaction, cooled, transferred the reaction to 250 ml of cold water, charcoal was added and the mixture filtered over a celite bed. The filtrate was basified with aq. ammonia solution till the pH~10-12. Extracted the basified reaction with ethyl acetate (250 ml X3), dried the ethyl acetate layer with sodium sulfate and distilled off the solvent completely to residue. To the residue hexane (50 ml) was added and filtered to get the desired compound (XI and XII). Table 6 : Imdiazopyridines (XI), (XII):
While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 452-58-4, 2,3-Diaminopyridine.
Reference:
Patent; MASSACHUSETTS INSTITUTE OF TECHNOLOGY; PRESIDENT AND FELLOWS OF HARVARD COLLEGE; GENZYME CORPORATION; WO2009/137081; (2009); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem