Related Products of 60710-80-7,Some common heterocyclic compound, 60710-80-7, name is 3-Amino-4-methylbenzonitrile, molecular formula is C8H8N2, 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.
To a solution of intermediate 7R (231 g, 0.556 mol) in 1,4-dioxane (2.3 L), ptoluenesulfonic acid monohydrate (179 g, 0.95 mol) and 3-amino-4-methylbenzonitrile (110 g, 0.83 mol) were added, purged three times with N2 and stirred at 95 C for 12 h. Then, the reaction mixture was cooled down to 20 C, and a solution of NaHCO3 was added to neutralize the mixture. The precipitated solid formed was filtrated andcombined with another precipitate coming from a reaction performed on 179 g of intermediate 7R. The resulting solid was dissolved in Me-THF (5 L), washed with water three times (3 x 5 L). A silanethiol resin [from Shanghai Meryer CO.,LTD] (60 g) was added to the mixture and reflux for 1.5 h. Then, the resulting mixture was filtered through a pad of celite and concentrated under vacuum. The residue wassuspended in EtOH (5L) overnight, filtered and dissolved in THF (3L). Methyl ten?butylether (6 L) was added to THF and the solid was precipitated, filtered and dried to afford 243g of compound 1.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3-Amino-4-methylbenzonitrile, its application will become more common.
Reference:
Patent; JANSSEN PHARMACEUTICA NV; STANSFIELD, Ian; QUEROLLE, Olivier Alexis Georges; PONCELET, Virginie Sophie; GROSS, Gerhard Max; JACOBY, Edgar; MEERPOEL, Lieven; KULAGOWSKI, Janusz Jozef; MACLEOD, Calum; MANN, Samuel Edward; GREEN, Simon Richard; HYND, George; (477 pag.)WO2017/125530; (2017); A1;,
Nitrile – Wikipedia,
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