859855-53-1, name is 3-Amino-4-fluorobenzonitrile, belongs to nitriles-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. Recommanded Product: 3-Amino-4-fluorobenzonitrile
3-amino-4-fluorobenzonitrie (9.82 g, 72.1 mmol) was dissolved in acetonitrie to give a pale yellow solution. NBS (13.5g, 75.7 mmol) was added in portions; the reaction mixture tumed brown-blackish but remained a soution. After the completion of the reaction was confirmed by TLC and HPLC, silica gel was added to the reaction mixture and the solvent was evaporated under reduced pressure. The crude product was leaded on a CombiFlash column (330 g) and the product was eluted with hexanes/ethyl acetate (0 – 15% gradient). The clean fractions were combined to give 9.63 g (62%) of a yellowish off-white solid. More product was found in mixed fractions which were discarded. 1H NMR (300 MHz, dmso) 3 7.57 (d, J = 10.9 Hz. 1H). 7.17 (d. J= 8.7 Hz. 1H). 5.85 (s br. 2H); MS (ES) 213/215 (M-H).
The synthetic route of 859855-53-1 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; RIGEL PHARMACEUTICALS, INC.; MCMURTRIE, Darren; KOLLURI, Rao; MASUDA, Esteban; TSO, Kin; ALVAREZ, Salvador; HECKRODT, Thilo; HOLLAND, Sacha; KELLEY, Ryan; DUNCTON, Matthew; SINGH, Rajinder; WO2014/89112; (2014); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts