Electric Literature of 88912-27-0 ,Some common heterocyclic compound, 88912-27-0, molecular formula is C6H4ClNO2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
Reference Production Example 36A mixture of 0.50 g of 2-amino-5-chloro-4-trifluoromethylphenol, 0.36 g of 3- chloroisonicotinic acid, 0.56 g of WSC and 5 ml of pyridine was stirred while heating at 80C for three hours. The reaction mixture was cooled to room temperature, and then water was added, followed by extraction with ethyl acetate three times. The combined organic layers were washed with water and a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.46 g of 3-chloro-N-[4-chloro-2- hydroxy-5-trifluoromethylphenyl]isonicotinamide.1 H-NMR (DMSO-de) delta: 10.32 (br s, IH), 8.75 (s, IH), 8.64 (d, J=4.8 Hz, IH), 8.43 (s, 7.63 (d, J=4.8 Hz, IH), 7.13 (s, IH)
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 88912-27-0, 3-Chloroisonicotinic acid, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; SUMITOMO CHEMICAL COMPANY, LIMITED; OTSUKI, Junko; WO2011/40629; (2011); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem