Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 106-37-6, name is 1,4-Dibromobenzene, A new synthetic method of this compound is introduced below., Safety of 1,4-Dibromobenzene
A solution of n-butyllithium n-hexane (6.6 mL, 10.5 mmol) was added dropwise to a solution of 1,4-dibromobenzene (2.36 g, 10 mmol) THF (20 mL).The reaction was carried out at -78 C under an inert atmosphere of argon for 1 h.Then, carbon tetrachloride (1.05 mL, 5 mmol) was added to the reaction solution and the above conditions were maintained for 2 h.After that, it was slowly heated to room temperature of 27 C and stirred for 12 h.Finally, 30 mL of water was added to interrupt the reaction and extraction was carried out using chloroform.The obtained organic layer was purified by column chromatography to give the intermediate product TBrBen (2.15 g, yield 68.5%).Identification of intermediate products by mass spectrometry, the results are:
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; Yangtze Normal University; Yang Yezi; Yao Chuang; Sun Changqing; (13 pag.)CN108752320; (2018); A;,
Bromide – Wikipedia,
bromide – Wiktionary