Adding a certain compound to certain chemical reactions, such as: 859299-66-4, name is Dimethyl 4,5-dibromophthalate, 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 859299-66-4, SDS of cas: 859299-66-4
S01: The 4.7g (0.21mol) of sodium was slowly added to 50mL (0.48mol) of sodium ethoxide prepared in absolute ethanol; the ethanol was added to 60mL of sodium propionate and 52.8g (0.15mol) 5, 6- dibromo phthalate mixed solution of dimethyl, raised to 80 and stirred for 4 hours to give a pale yellow viscous paste; then use the atmospheric distillation paste methanol , ethanol, methyl propionate was removed, and then subjected to suction filtration residue was washed with petroleum ether to give 40.5g of a pale yellow solid after vacuum drying.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, Dimethyl 4,5-dibromophthalate, and friends who are interested can also refer to it.
Reference:
Patent; Technical Institute of Physics and Chemistry, CAS; Zhang, Xiaolong; Chen, Dongyang; Zheng, Caijun; (15 pag.)CN105693608; (2016); A;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics