China Suppliers > Tianjin Yuansu Chemical Reagent Co., LTD > 1,4-Dibromobenzene
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- Region :China/Tianjin
- Tel : +86-22-83739603
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- Details for 1,4-Dibromobenzene
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1,4-Dibromobenzene 106-37-6
Category : Dyestuffs and Pigments
CAS NO : 106-37-6 EC NO : 203-390-2 MF : C6H4Br2 MW : 235.90576 Specification : 99% min Packing : 25kg 50kg drum or bag Product description : What is the chemical of 1,4-Dibromobenzene ? Appearance: White to grayish-white crystalline powder； Assay:99%min by HPLC； IR Identity: conform to standard； HNMR： conform to standard； carbon spectrum: conform to standard； Water by K. F.:0.5% max or as per the customer’s request； Loss on drying:0.5% max. or as per the customer’s request； =========================================================================== 1,4-Dibromobenzene is an important organic synthesis intermediate, with main applications including: Organic synthesis: Serving as a starting material or intermediate for constructing complex organic molecules; Dye intermediates: Used in the synthesis of various dyes; Research reagents: Widely used in chemical reaction studies in laboratories. =============================================================================== Synthesis Route: The synthesis method of 1,4-dibromobenzene is achieved through the direct bromination of benzene, with specific steps as follows: Add iron filings (as a catalyst) to benzene. Slowly drip in bromine, and maintain a gentle boiling state for about 1 hour after the reaction starts. Subsequently, heat to 60°C, continue heating for 45 minutes until the brown vapor of bromine disappears. After the reaction is complete, filter out the iron filings and wash with water. The product is separated by steam distillation, and the distillate is collected. The residue is cooled, dried, and recrystallized with methanol to finally obtain purified 1,4-dibromobenzene. The traditional method has a yield of approximately 10%. In recent years, to improve efficiency and yield, the ultrasonic synthesis method has been developed and applied. This method can achieve a yield as high as 80% at lower temperatures and in shorter times (for reference only). Uses : 1,4-Dibromobenzene is an important organic synthesis intermediate, with main applications including: Organic synthesis: Serving as a starting material or intermediate for constructing complex organic molecules; Dye intermediates: Used in the synthesis of Synonyms : p-Dibromobenzene;Paradibromobenzene; Molecular Structure : 
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1,4-Dibromobenzene