Adding a certain compound to certain chemical reactions, such as: 18014-00-1, name is Dimethyl 2,5-dibromoterephthalate, belongs to esters-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 18014-00-1, Recommanded Product: 18014-00-1
A degassed solution of 157.6 g (400 mmol) of diethyl dibromoterephthalate and 36.7 g (220 mmol) of carbazole in 1 l of 1,2-dichlorobenzene is saturated with N2 for 1 h. Then, firstly 20 g (314 mmol) of copper powder, then 18 g (67 mmol) of 18-crown-6 are added to the solution, and 177 g (850 mmol) of potassium carbonate as the solid are subsequently added. The reaction mixture is heated at 170 C. for 18 h. After cooling to room temperature, 1 l of water is carefully added. The organic phase is washed with 4×50 ml of H2O and dried over MgSO4, and the solvents are removed in vacuo. The pure product is obtained by recrystallisation. The yield is 83 g (177 mmol), corresponding to 81% of theory
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Reference:
Patent; Merck Patent GmbH; Parham, Amir Hossain; Pflumm, Christof; US2013/26422; (2013); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics