Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 60710-80-7, name is 3-Amino-4-methylbenzonitrile, A new synthetic method of this compound is introduced below., COA of Formula: C8H8N2
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.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
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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