With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.7379-35-3, name is 4-Chloropyridine hydrochloride, molecular formula is C5H5Cl2N, molecular weight is 150.0059, as common compound, the synthetic route is as follows.Product Details of 7379-35-3
To a solution of 4-aminothiophenol (20.2 g, 156.5 mmol) in anhydrous DMF (200 mL) was added 4-chloropyridine hydrochloride (24.4 g, 161.0 mmol) followed by potassium carbonate (44 g, 318.4 mmol). The reaction mixture was heated at 80¡ã C. overnight, then diluted with ethyl acetate (400 mL) and water (400 mL). The aqueous layer was back-extracted with ethyl acetate (2.x.200 mL). The combined organic layers were washed with a saturated aqueous NaCl solution (200 mL), dried over anhy MgSO4, and concentrated under reduced pressure. The residue was filtered through a pad of silica with ethyl acetate and the resulting material was triturated with an ethyl ether/hexane solution to afford the desired product (24.7 g, 78percent). TLC (50percent ethyl acetate/50percent hexane) Rf=0.25; 1H-NMR (DMSO-d6) delta5.67 (bs, 2H), 6.65 (d, J=8.4 Hz, 2H), 6.88 (d, J=6.2 Hz, 2H), 7.19 (d, J=8.4 Hz, 2H), 8.27 (d, J=6.2 Hz, 2H), MS[M+H]+=203.
At the same time, in my other blogs, there are other synthetic methods of this type of compound,7379-35-3, 4-Chloropyridine hydrochloride, and friends who are interested can also refer to it.
Reference:
Patent; BAYER CORPORATION; US2004/2508; (2004); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem