Analyzing the synthesis route of 4-Chloro-3-nitro-2(1H)-pyridinone

According to the analysis of related databases, 165547-79-5, the application of this compound in the production field has become more and more popular.

Application of 165547-79-5, 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 165547-79-5, name is 4-Chloro-3-nitro-2(1H)-pyridinone. This compound has unique chemical properties. The synthetic route is as follows.

Methyl iodide (2.06 ml_, 32.99 mmol) was added to a suspension of 4-chloro-2-hydroxy-3- nitropyridine (prepared as descibed in Bioorg. Med. Chem. Lett, 2003, 13, 125) (2.87 g, 16.49 mmol) and siver carbonate (4.55 g, 16.49 mmol) in toluene (100 ml.) and the mixture heated at 85 C for 3.5 h. On cooling to ambient temperature the mixture was filtered through dicalite and washed with toluene. The combined filtrate and washings were concentrated in vacuo and the crude product purified by chromatography on silica gel with EtOAc:heptane (1 :9, v/v) as eluent. The pure product was collected as a white solid (1.99 g, 64 %). Data for 4-chloro-2-hydroxy-3-nitropyridine: MS (ESI) m/z: 189/191 ([M+H]+).

According to the analysis of related databases, 165547-79-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; N.V. ORGANON; WO2007/39563; (2007); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem