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. 263159-64-4, name is 2-Bromo-3-methylbenzonitrile, A new synthetic method of this compound is introduced below., SDS of cas: 263159-64-4
Step 3: A mixture of compound 249 (1 1 g, 56.1 mmol), NBS (10 g, 56.1 mmol) and BPO (81 mg, 0.34 mmol) in CCI4 (150 mL) was heated at reflux overnight. TLC (petroleum ether / EtOAc = 5:1 ) showed the reaction was completed. The mixture was filtered and the filtrate was concentrated. The residue was purified by column chromatography over silica gel (petroleum ether / EtOAc = 20:1 ) to yield compound 250 (9.6 g, 62%) as a white solid. 1H NMR (400 MHz, CDCI3) delta 7.69- 7.67 (d, 1 H), 7.63-7.61 (d, 1 H), 7.45-7.41 (t, 1 H), 4.61 (s, 2H)
The synthetic route of 263159-64-4 has been constantly updated, and we look forward to future research findings.