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4,4’-Bis(chloromethyl)biphenyl | CAS: 1667-10-3 | C14H12Cl2

4,4’-Bis(chloromethyl)biphenyl, also known as DCMX (di(chloromethyl)xylene), is an organic compound with a chemical formula C14H12Cl2. It is a white crystalline solid that is insoluble in water but soluble in organic solvents.

Physicochemical properties of 4,4'-Bis(chloromethyl)biphenyl

CAS number1667-10-3
EINECS No216-784-4
Molecular FormulaC14H12Cl2
Formula Weight251.15
AppearancePowder crystal
Boiling Point184°C/0.2mmHg
Melting point126°C(dec.)(lit.)

The Uses of 4,4'-Bis(chloromethyl)-1,1'-biphenyl

4,4′-Bis(chloromethyl)-1,1′-biphenyl is a white crystalline powder at room temperature, insoluble in water, basically insoluble in methanol and ethanol, and has very little solubility in non-polar organic solvents. It is easily soluble in polar organic solvents, such as toluene, carbon tetrachloride, etc.

4,4′-Bis(chloromethyl)-1,1′-biphenyl is used to synthesize biphenyl diphenylacetylene fluorescent whitening agent CBS-X, the key intermediate of CBS-127, and can also be used as a intermediate of medicine or resin.

The production process of 4,4'-Bis(chloromethyl)-1,1'-biphenyl

Add petroleum ether, biphenyl, by-products, paraformaldehyde, zinc chloride in sequence in the reaction device.

Stir evenly, and then add in dry HCL gas.

The chloromethylation occurs under normal pressure The reaction temperature is 25-35°C, the reaction time is 22-26 hours.

The material is washed with water and separated from solid and liquid to obtain a crude product, which is then recrystallized with toluene, filtered and dried to obtain 4,4′-Bis(chloromethyl)-1,1′-biphenyl.

When producing 4,4′-Bis(chloromethyl)-1,1′-biphenyl, Caloong Chemical recycles the by-products produced in the production process. Participates in the chloromethylation reaction, changes the concentration balance relationship between the original reactant and the product, suppresses the side reaction, and makes the reaction It is beneficial to the generation of the main reactant and increases the yield of 4,4′-Bis(chloromethyl)-1,1′-biphenyl.

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