ChemicalBook CAS DataBase List 1,3,5-Trichlorobenzene

1,3,5-Trichlorobenzene synthesis

9synthesis methods

Product Name:1,3,5-Trichlorobenzene
CAS Number:108-70-3
Molecular formula:C6H3Cl3
Molecular Weight:181.45

19752-55-7 Synthesis

19752-55-7
360 suppliers
$8.00/10g

108-70-3
250 suppliers
$21.00/100g

Yield:108-70-3 97.2%

Reaction Conditions:

with chlorine;sodium thiosulfate

Steps:

3 EXAMPLE 3

EXAMPLE 3 In the reactor of Example 1, each chlorination of 1-bromo-3,5-dichlorobenzene was chlorinated under the specific condition. The starting materials were respectively preheated at 300° C. and 1-bromo-3,5-dichlorobenzene was fed at a rate of 7.7 g./min. and chlorine was fed at a rate of 550 ml./min. into the reactor. The reaction was continuously carried out at a reaction temperature of 360° C. and a residence time of 14 seconds for 2 hours. The reaction mixture was cooled to collect 1029 g. of the mixture. The reaction mixture was distilled to recover 263 g. of bromine (recovery percent of 84%). The residue contained the object product and a small amount of bromine and it was washed in an aqueous solution of sodium thiosulfate and the product was separated under heating it by a phase separation to obtain 722.5 g. of 1,3,5-trichlorobenzene as the object product (yield of 97.2%).

References:

US4368340,1983,A