Adding a certain compound to certain chemical reactions, such as: 108-70-3, name is 1,3,5-Trichlorobenzene, belongs to chlorides-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 108-70-3, Application In Synthesis of 1,3,5-Trichlorobenzene
Step 2: Preparation of (3,5-dichloro-4-pyridinyl)bis(2,4,6-trichlorophenyl)methane A 100 mL round-bottom flask was charged with 3,5-dichloropyridine-4-aldehye (1.76 g, 10.0 mmol), 1,3,5-trichlorobenzene (18.14 g, 100 mmol) and trifluoromethanesulphonic acid (30.0 g, 200 mmol) and heated to 180 C. for 10 h. After the reaction was completed and cooled to room temperature, the mixture was dissolved with dichloromethane and added to ice water. The mixture was neutralized to pH 7 using saturated sodium hydrogen carbonate solution, extracted with dichloromethane, washed with a sodium hydrogen carbonate solution several times, dried over magnesium sulphate. The solvent was evaporated under the reduced pressure. Product was purified by silica gel chromatography eluting with petroleum ether:methylene dichloride=1:1 (VV). A white solid (2.6 g, 50%) was obtained. 1H NMR and mass spectrometry results confirmed that product was (3,5-dichloro-4-pyridine)bis(2,4,6-trichlorophenyl)methane.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1,3,5-Trichlorobenzene, and friends who are interested can also refer to it.
Reference:
Patent; JILIN UNIVERSITY; LI, Feng; (18 pag.)US2016/99415; (2016); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics