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.89284-61-7, name is 4-Chloronicotinonitrile, molecular formula is C6H3ClN2, molecular weight is 138, as common compound, the synthetic route is as follows.HPLC of Formula: C6H3ClN2
[00425] To a solution of 78-1 (500.0 mg, 3.6 mmol, 1.0 eq), 78-2 (581.5 mg, 3.6 mmol, 0.45 mL, 1.0 eq) and Cs2C03 (1.2 g, 3.6 mmol, 1.0 eq) in dioxane (10.0 mL) was added BINAP (224.7 mg, 0.36 mmol, 0.1 eq) and palladium acetate (81.0 mg, 0.36 mmol, 0.1 eq). The resulting mixture was stirred at 100 C under N2 for 15 hour. LCMS showed the desired compound was formed and the starting material was consumed completely. TLC (30% ethyl acetate in petroleum ether, Rf = 0.4) showed the starting material was consumed and a new spot appeared. The reaction mixture was concentrated. The crude residue was dissolved in CH2C12 (25 ml) and washed with water (2 x 15 mL). After drying over anhydrous Na2S04, the solvent was removed under reduced pressure to afford the crude product. The crude product was purified by column chromatography over silica gel to provide 78-3 (620.0 mg, 2.4 mmol, 65.3% yield). LCMS (ESI): RT = 0.575 min, mass calc. for Ci3H8F3N3 263.07, m/z found 263.8 [M+H]+.
At the same time, in my other blogs, there are other synthetic methods of this type of compound,89284-61-7, 4-Chloronicotinonitrile, and friends who are interested can also refer to it.
Reference:
Patent; VIVACE THERAPEUTICS, INC.; KONRADI, Andrei W.; LIN, Tracy Tzu-Ling Tang; (396 pag.)WO2018/204532; (2018); A1;,
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