Adding a certain compound to certain chemical reactions, such as: 583-70-0, name is 2,4-Dimethylbromobenzene, belongs to bromides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 583-70-0, Safety of 2,4-Dimethylbromobenzene
General procedure: A solution of 4-methoxybromobenzene (2.67 mmol)and cyclopent-2-en-1-one (3.2 mmol) in DMSO was stirred at ambient temperaturefor 10 min under nitrogen, and treated with Na2CO3 (8.01mmol) and tri-tert-butylphosphonium tetrafluoroborate (0.53 mmol).The reaction mixture was degassed with nitrogen for 10 min and treated withPd(PPh3)2Cl2 (0.13 mmol) and X-Phos (0.26mol), and stirred at 100 0C for 12 h. The reaction mixture was cooledto ambient temperature, diluted with water, and extracted with AcOEt (3 x 50ml). The combined organic layers were washed with brine, dried over anhydrousNa2SO4, and evaporated. Flash chromatograph on silica gel(AcOEt:cyclohexane 1:3) provided the Heck coupling product as brown solid (340mg, 68%).
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2,4-Dimethylbromobenzene, and friends who are interested can also refer to it.
Reference:
Article; Gowala, Tarak Nath; Pabba, Jagadish; Tetrahedron Letters; vol. 56; 14; (2015); p. 1801 – 1804;,
Bromide – Wikipedia,
bromide – Wiktionary