615-47-4

Basic information

• Product Name: 1,2,4-Benzenetriamine dihydrochloride
• Synonyms: benzene-1,2,4-triyltriamine dihydrochloride;1,2,4-Benzenetriamine 2HCL;1,2,4-TRIAMINOBENZENE 2HCL;1,2,4-Benzenetriamine dihydrochloride, pract., 99%;1,2,4-BENZENETRIAMINE DIHYDROCHLORIDE PRACT., 99% (TITR.);1,2,4-Benzenetriamine dihydrochloride,99%,pract.;Benzene-1,2,4-triaMine 2HCl;benzene-1,2,4-triaMine dihydrochloride
• CAS NO: 615-47-4
• Molecular Formula: C6H11Cl2N3
• Molecular Weight: 196.08
• EINECS: 210-428-1
• Product Categories: Anilines, Aromatic Amines and Nitro Compounds;Benzene derivates;Furans ,Coumarins
• Mol File: 615-47-4.mol
• Article Data: 17

Chemical Properties

• Melting Point: 290°C
• Boiling Point: 342.5°C at 760 mmHg
• Flash Point: 191.2°C
• Appearance: /
• Vapor Pressure: 7.51E-05mmHg at 25°C
• Storage Temp.: Hygroscopic, -20°C Freezer, Under inert atmosphere
• Solubility: slightly soluble
• Water Solubility: slightly soluble
• Sensitive: Hygroscopic
• Stability: Hygroscopic
• CAS DataBase Reference: 1,2,4-Benzenetriamine dihydrochloride(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,4-Benzenetriamine dihydrochloride(615-47-4)
• EPA Substance Registry System: 1,2,4-Benzenetriamine dihydrochloride(615-47-4)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22
• Safety Statements: 36/37
• RTECS: DC1953000
• TSCA: Yes
• Hazardous Substances Data: 615-47-4(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 615-47-4 differently. You can refer to the following data:
1. 1,2,4-Triaminobenzene Dihydrochloride is a useful reagent for making multicolor fluorescent carbon dots that can be detected via white-?light-?emitting diodes and water.
2. 1,2,4-triaminobenzene hydrochloride can be used as a co-doping reagent, aconitic acid-based fluorescent carbon nanomaterials with high quantum yield can be prepared, and controll the emission wavelength.

Synthesis

(1) Using m-dichlorobenzene as raw material, dropwise addition at low temperature and high temperature nitration in a mixed acid system of concentrated sulfuric acid and fuming nitric acid to obtain 1,3-dichloro-4,6-dinitrobenzene; (2) 1 ,3-Dichloro-4,6-dinitrobenzene is placed in a high-pressure reactor in the presence of ammonia water, and the temperature is raised to 145～150 ℃ for ammonolysis reaction to obtain 4,6-dinitro-1,3-benzenediol Amine; (3) Place 4,6-dinitro-1,3-phenylenediamine, oxygen-free distilled water and palladium-carbon catalyst in a hydrogenation autoclave, and catalyze it under a hydrogen atmosphere of 1-1.5MPa and 85°C After the hydrogenation reaction, the catalyst was removed by hot filtration under nitrogen protection to obtain a 1,2,4-triaminobenzene hydrochloric acid solution;(4) take the 1,2,4,5-tetraaminobenzene obtained in step (3) The solution was added with concentrated hydrochloric acid, cooled to room temperature, filtered under nitrogen protection, and the filter cake was dried in a vacuum desiccator at 40°C to obtain 1,2,4-triaminobenzene hydrochloric acid. The molar ratio of m-dichlorobenzene to fuming nitric acid described in the step (1) is 2.2:1, the mass ratio of concentrated sulfuric acid to fuming nitric acid is 3:8～10, and the dropping temperature is -5～0°C, The nitration temperature is 100-104°C. The reaction time of the ammonolysis described in step (2) is 3.5～4h, and the molar ratio of 1,3-dichloro-4,6-dinitrobenzene to ammonia water is 1:(10～14). The oxygen-free distilled water described in step (3) is distilled water purified by nitrogen, and the reaction time of catalytic hydrogenation is 3-4h; 4,6-dinitro-1,3-phenylenediamine, palladium-carbon catalyst and oxygen-free The mass ratio of the three distilled water is 1:0.05:10. The volume ratio of the 1,2,4-triaminobenzene hydrochloric acid solution described in step (4) to concentrated hydrochloric acid is 1:0.2-0.3.

Description

1,2,4-Triaminobenzene hydrochloride is an aromatic triamine with a relatively simple structure. Compared with triaminopyridine, it is easier to synthesize and realize industrialization. To a certain extent, it can replace TAP and 2,5-dihydroxyterephthalene. Formic acid (DHTA) for polymerization.

Chemical Properties

PURPLE POWDER

InChI:InChI=1/C6H9N3.2ClH/c7-4-1-2-5(8)6(9)3-4;;/h1-3H,7-9H2;2*1H

Upstream product

• 120-83-2 2,4-dichlorophenol 
• 535-11-5 Ethyl 2-bromopropionate 
• 97-02-9 2,4-Dinitroanilin 
• 99-56-9 4-Nitrophenylene-1,2-diamine 
• 42412-84-0 ethyl 2-phenoxypropionate 
• 535-13-7 2-chloro-propanoic acid, ethyl ester 
• 120-36-5 2-(2,4-dichlorophenoxy)propionic acid 
• 58048-37-6 2-(2,4-dichloro-phenoxy)-propionyl chloride 

Downstream Products

• 108281-61-4 2-benzyl-1H-benzo[d]imidazol-5-amine 
• 4236-41-3 3-methyl-6-aminoquinoxaline 
• 6298-37-9 6-aminoquinoxaline 
• 1571-93-3 2-methyl-1(3)H-benzimidazol-5-ylamine; dihydrochloride 
• 7621-86-5 2-(4-aminophenyl)-5-amino-benzimidazole 
• 87345-63-9 N,N'-Bis<2-(4-nitrophenyl)benzimidazol-5-yl>terephthaloyl diamide 
• 87345-62-8 1,5-Bis(p-nitrobenzamido)-2-(p-nitrophenyl)benzimidazole 
• 87345-65-1 N,N'-Bis<2-(4-aminophenyl)benzimidazol-5-yl>terephthaloyl diamide 
• 87345-61-7 5-(p-Nitrobenzamido)-2-(p-nitrophenyl)benzimidazole 
• 40655-18-3 2-(p-Nitrophenyl)-5-aminobenzimidazole 
• 28689-19-2 2,2'-(1,4-phenylene)bis(1H-benzo[d]imidazol-6-amine) 
• 7621-86-5 6-amino-2-(4'-aminophenyl)-benzimidazole 

Relevant articles and documents

Preparation method of chlorophenoxycarboxylic ester

The invention provides a preparation method of chlorophenoxycarboxylic ester, wherein the preparation method includes the following steps: carrying out 2-site and/or 4-site selective chlorination reaction of phenoxycarboxylic ester with a chlorinating agent under the action of a catalyst A and a catalyst B to obtain chlorophenoxycarboxylic ester, wherein the catalyst A is Lewis acid, and the catalyst B is C5-22 thiazoles, isothiazoles and thiophenes or halogenated derivatives thereof. The method effectively improves the chlorination selectivity and avoids loss of effective ingredients by redesigning of the process route and fine screening of the catalysts and the chlorinating agent. The content of the obtained chlorophenoxycarboxylic ester can reach 98.5% or more and the yield can reach 99% or more.

Preparation method of chlorophenoxycarboxylic ester

The invention provides a preparation method of chlorophenoxycarboxylic ester, wherein the preparation method includes the following steps: S1) carrying out 2-site and/or 4-site selective chlorinationreaction of phenoxycarboxylic ester with a chlorinating agent under the action of a catalyst A and a catalyst B to obtain chlorophenoxycarboxylic ester, wherein the catalyst A is Lewis acid, the catalyst B is C5-22 thiazoles, isothiazoles and thiophenes or halogenated derivatives thereof, and the phenoxycarboxylic ester has any structure represented by the formulas I-IV; and S2) carrying out transesterification reaction of chlorophenoxycarboxylic ester and alcohol under the action of a catalyst to obtain long-chain chlorophenoxycarboxylic ester, wherein the alcohol has the molecular formula ofR2OH, and R2 is C4-20 alkyl or cycloalkyl. The method improves the yield and purity of chlorophenoxycarboxylic ester by redesigning of the process route and fine screening of the catalysts and the chlorinating agent. The content of the obtained chlorophenoxycarboxylic ester can reach 98.5% or more and the yield can reach 98.5% or more.

Preparation method of chlorophenoxycarboxylic ester

The invention provides a preparation method of chlorophenoxycarboxylic ester, wherein the preparation method includes the following steps: S1) carrying out 2-site and/or 4-site selective chlorinationreaction of phenoxycarboxylic ester with a chlorinating agent under the action of a catalyst A and a catalyst B to obtain chlorophenoxycarboxylic ester, wherein the catalyst A is Lewis acid, the catalyst B has the following structural formula of R1'-S-R2', and the phenoxycarboxylic ester has any structure represented by the formulas I-IV; and S2) carrying out transesterification reaction of chlorophenoxycarboxylic ester and alcohol under the action of a catalyst to obtain long-chain chlorophenoxycarboxylic ester, wherein the alcohol has the molecular formula of R2OH, and R2 is C4-20 alkyl or cycloalkyl. The method improves the yield and purity of chlorophenoxycarboxylic ester by redesigning of the process route and fine screening of the catalysts and the chlorinating agent. The content ofthe obtained chlorophenoxycarboxylic ester can reach 98.5% or more and the yield can reach 98.5% or more.