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. 38487-85-3, name is 2-Amino-4-methoxybenzonitrile, A new synthetic method of this compound is introduced below., name: 2-Amino-4-methoxybenzonitrile
To a stirred solution of 2-amino-4-methoxy benzonitrile (19.4 g, 131 mmol) in acetonitrile (582 mL) was added NBS (18.66 g, 104 mmol) and the mixture was stirred for 1 h at 0 C. The reaction was quenched by addition of ice. The volatiles were concentrated under reduced pressure and the residue was extracted with ethylacetate (2 x 200 mL). The combined organic layers were washed with brine solution (200 mL), dried over sodium sulfate and concentrated under reduced pressure to afford 2-amino-5-bromo-4-methoxy benzonitrile (26 g, 114 mmol, 87% yield) as a brown solid. LCMS (ESI) m/e 227.6 (bromo pattern) [(M+H), calcd for C8H8BrN2O, 227.06]; LC/MS retention time (method C): ti = 1.46 mm.
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; BRISTOL-MYERS SQUIBB COMPANY; HARTZ, Richard A.; AHUJA, Vijay T.; MACOR, John E.; BRONSON, Joanne J.; DASGUPTA, Bireshwar; DZIERBA, Carolyn Diane; NARA, Susheel Jethanand; KARATHOLUVHU, Maheswaran Sivasamban; (226 pag.)WO2016/53794; (2016); A1;,
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