Research on new synthetic routes about C7H3BrN2O2

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1-Cyano-2-bromo-5-nitrobenzene, and friends who are interested can also refer to it.

Related Products of 134604-07-2, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 134604-07-2 name is 1-Cyano-2-bromo-5-nitrobenzene, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

To a solution of isobutylboronic acid (5.89 g), 2-bromo-5-nitrobenzo nitrile (12.5 g) and Cs2C03 (35.9 g) in toluene (150 mL) and water (5 mL) stirred under nitrogen at room temperature was added solid PdCI2(dppf)- CH2CI2 adduct (2.248 g) in one charge. The reaction mixture was stirred at 100 C for 16 h. After cooling the reacion, the solvent was removed in vacuo. The residue was purified by column chromatography to give 2-(2-methylpropyl)-5-nitrobenzonitrile (D56) (11 g) as a light yellow oil. 5H (CDCI3, 400MHz): 1.00 (6H, d), 2.06 (1 H, m), 2.86 (2H, d), 7.52 (1 H, d), 8.37 (1 H, dd), 8.51 (1 H, d).

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1-Cyano-2-bromo-5-nitrobenzene, and friends who are interested can also refer to it.

Reference:
Patent; GLAXO GROUP LIMITED; DENG, Guanghui; LIN, Xichen; REN, Feng; ZHAO, Baowei; WO2011/134280; (2011); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts