Analyzing the synthesis route of 5470-18-8

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 5470-18-8, 2-Chloro-3-nitropyridine.

5470-18-8, 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. 5470-18-8, name is 2-Chloro-3-nitropyridine. This compound has unique chemical properties. The synthetic route is as follows.

2-(2-tert-butylphenoxy)-3-aminopyridine Intermediate 1a. 2-(2-tert-butylphenoxy)-3-nitropyridine: A solution of 2-chloro-3-nitropyridine (21.1 g, 133 mmol) in DMF (100 mL) was treated with 2-tert-butylphenol (23.5 mL, 153 mmol) and cesium carbonate (130 g, 398 mmol). The mixture was heated at 80 C. for 30 h. The reaction was cooled to rt and the mixture was poured into water (1 L) with stirring. The resulting yellow precipitate was filtered, washed with water, and recrystallized from ethanol to afford Intermediate 1a (32.8 g, 90% yield) as beige crystals; HPLC purity: 92%, 3.66 min (Method A); 1H NMR (400 MHz, CD3OD) 8 ppm 1.34 (s, 9H), 6.93 (m, 1H), 7.22 (m, 3H), 7.47 (m, 1H), 8.31 (dd, J=4.82, 1.75 Hz, 1H), 8.46 (dd, J=7.89, 1.75 Hz, 1H).

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 5470-18-8, 2-Chloro-3-nitropyridine.

Reference:
Patent; Bristol-Myers Squibb Company; US2006/293522; (2006); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem