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 16133-25-8, name is Pyridine-3-sulfonyl chloride. This compound has unique chemical properties. The synthetic route is as follows. HPLC of Formula: C5H4ClNO2S
To a solution of (6-phenylpyridazin-3-ylmethyl)amine hydrochloride (121 mg) (containing 0.458 mmol of a pure content) obtained in Reference Example 2-(c) in methylene chloride (1 ml) were added triethylamine (0.26 ml, 1.8 mmol) and 3-pyridylsulfonyl chloride (see The Journal of Organic Chemistry, 54, 389 (1989)) (83.2 mg, 0.468 mmol), followed by stirring at room temperature for 17 hours. After completion of the reaction, the reaction solution was concentrated under reduced pressure, and water was added to the residue, followed by extraction with ethyl acetate. The separated organic layer was washed with a saturated aqueous sodium chloride solution, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The resulting residue was subjected to silica gel column chromatography (eluent; ethyl acetate_acetonitrile=1:00:1 (V/V), then chloroform), and fractions containing the desired compound were concentrated under reduced pressure to afford the title compound (130 mg) as a slightly brown solid. (Yield: 87percent) Mass spectrum (CI, m/z): 327 (M++1). 1H-NMR spectrum (CDCl3, ppm): 9.11 (dd, J=2.4, 0.9Hz, 1H), 8.75 (dd, J=4.8, 1.6Hz, 1H), 8.19 (ddd, J=8.1, 2.4, 1.6Hz, 1H), 8.05-8.00 (m, 2H), 7.82 (d, J=8.8Hz, 1H), 7.56-7.49 (m, 4H), 7.42 (ddd, J=8.1, 4.8, 0.9Hz, 1H), 6.30 (brs, 1H), 4.57 (s, 2H).
With the rapid development of chemical substances, we look forward to future research findings about 16133-25-8.
Reference:
Patent; Ube Industries, Ltd.; EP2264009; (2010); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem