6973-13-3

Usage

Uses

Used in Pharmaceutical Industry:
2-Chloro-5-nitrotoluene-4-sulphonic acid is used as an intermediate in the synthesis of pharmaceuticals for its ability to be incorporated into complex organic molecules.
Used in Dye and Pigment Industry:
2-Chloro-5-nitrotoluene-4-sulphonic acid is used as a building block in the production of dyes and pigments, contributing to the color and stability of these products.
Used in Agrochemical Production:
2-Chloro-5-nitrotoluene-4-sulphonic acid is used as an intermediate in the production of agrochemicals, playing a role in the development of substances that protect crops and enhance agricultural yields.
Used in Fine Chemicals Industry:
2-Chloro-5-nitrotoluene-4-sulphonic acid is utilized in the synthesis of other fine chemicals, where its unique properties allow for the creation of specialized compounds for various applications.

InChI:InChI=1/C7H6ClNO5S/c1-4-2-6(9(10)11)7(3-5(4)8)15(12,13)14/h2-3H,1H3,(H,12,13,14)

Upstream product

• 98-59-9 p-toluenesulfonyl chloride 
• 98-34-0 3-chloro-4-methylbenzenesulfonic acid 
• 108-88-3 toluene 
• 104-15-4 toluene-4-sulfonic acid 
• 42413-03-6 3-chloro-4-methylbenzenesulfonyl chloride 
• 861560-18-1 2-chloro-5-nitro-toluene-4-sulfonyl chloride 

Downstream Products

• 7149-80-6 5-chloro-4-methyl-2-nitroaniline 
• 88-53-9 5-amino-2-chloro-toluene-4-sulfonic acid 

Relevant academic research and scientific papers

Pipeline method and device for preparing 2-nitro-5-chloro-4-toluenesulfonic acid

The invention discloses a pipeline method and device for preparing 2-nitro-5-chloro-4-toluenesulfonic acid. The device comprises a nitrogen dioxide steel cylinder, a storage tank, an ozone generator,a flow pump, a gas flowmeter, a cross mixed joint, a reaction pipeline passing through an alumina interior coating, a cooling system, a heating system, a back pressure valve and a receiving tank. Themethod comprises the following steps: turning on the cooling system and the heating system for preheating; turning on the ozone generator, setting ozone flow, and regulating the back pressure valve; setting the flow pump and the gas flowmeter; and mixing the raw materials, nitrogen dioxide and ozone via the cross mixed joint, enabling the mixture to enter the reaction pipeline passing through an alumina interior coating for carrying out a nitration reaction, and performing after-treatment on the reaction solution, thereby obtaining the 2-nitro-5-chloro-4-toluenesulfonic acid. According to themethod disclosed by the invention, the catalyst alumina is arranged in the pipeline in a coating form, the catalyst is uniformly arranged, the catalytic efficiency is high, the packing does not need to be removed, and the operation is simple and convenient.

Method for achieving pipe-type continuous production of CLT acid nitride

The invention discloses a method for achieving pipe-type continuous production of CLT acid nitride. The method comprises the steps that 1, methylbenzene and sulfuric acid conduct a sulfonation reaction in a sulfonation pipe reactor; 2, thth sulfonation reaction solution obtained in the first step and chlorine are continuously fed into a chlorination pipe reactor for a chlorination reaction; 3, the chlorination reaction solution obtained in the second step and nitric acid are continuously fed into a nitrification pipe reactor for a nitrification reaction, and then the CLT acid nitride is prepared. According to the method for achieving pipe-type continuous production of the CLT acid nitride, purification treatment does not need to be conducted on an intermediate in the reaction process, operation is easy, the reaction efficiency is high, and the objective product selectivity is high.

Method for producing CLT acid nitride in continuous pipelization mode

The invention discloses a method for producing CLT acid nitride in a continuous pipelization mode. The method includes the following steps that 1, CLT acid sulphonate and chlorine gas are continuously introduced into a chloridizing pipeline reactor to be subjected to a chlorination reaction; 2, a chlorination reaction solution obtained in the step 1 and nitric acid are continuously introduced into a nitrating pipeline reactor to be subjected to a nitratlon reaction to obtain the CLT acid nitride. In the method, it is unnecessary to purify an intermediate in the reaction process, and the method is easy to operate, high in reaction efficiency and high in target product selectivity.