Related Products of 50670-64-9, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 50670-64-9, name is 5-Amino-2-methylbenzonitrile belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.
Example 22 5-Bromo-2-methylbenzonitrile Water (13.5 mL), HBr (74%, 14.4 mL) and 5-amino-2-methylbenzonitrile (2.0 g, 15.1 mmol) dissolved in water (24 mL) was added to a flask and heated to 50 C. for 20 min. Then the mixture was cooled to 0~5 C., and a solution of NaNO2 (1.2 g, 17.4 mmol) in water was added. The reaction mixture was stirred for 10 min at 0~5 C., then was warmed to 40 C. A solution of CuBr (6.5 g, 45.1 mmol) in water (36 mL) and HBr (7.2 mL) was added to the mixture, and refluxed for 2 h. The mixture was extracted with AcOEt, and the organic layer was washed by saturated NaHCO3 solution and brine, and dried over Na2SO4. The crude product was purified by flask chomatograph (PE:EA=50:1), obtaining 2.3 g of 5-bromo-2-methylbenzonitrile as a white solid (yield: 77%). 1H NMR (400 MHz, CDCl3) delta 7.72 (s, 1H), 7.59 (d, J=8.0 Hz, 1H), 7.19 (d, J=8.0 Hz, 1H), 2.51 (s, 3H).
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 5-Amino-2-methylbenzonitrile, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; Glaxo Group Limited; US2009/203677; (2009); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts