Application of 162758-35-2, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 162758-35-2 name is 5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3-carboxylic acid, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
To a suspension of 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylic acid (3.82 g, 10 mmol) in toluene (75 ml) was added thionyl chloride (3.64 ml, 50 mmol) and the mixture was refluxed for 3 hours and then cooled to the room temperature. The solvent was evaporated off under the reduced pressure. The residue was redissolved in toluene (30 ml) and the solvent was evaporated off again (procedure repeated twice) to yield the carboxyl chloride (3.94 g, 98% yield).
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3-carboxylic acid, and friends who are interested can also refer to it.