119-08-4

Upstream product

• 89-62-3 4-methyl-2-nitroaniline 
• 97-52-9 2-methoxy-4-nitrophenylamine 

Downstream Products

• 118871-57-1 (bromo-nitro-methylene)-(4-methyl-2-nitro-phenyl)-hydrazine 
• 74272-94-9 (4-methyl-2-nitro-phenyl)-(1-nitro-ethylidene)-hydrazine 
• 119750-08-2 chloro-(4-methyl-2-nitro-phenylhydrazono)-acetic acid ethyl ester 
• 36893-30-8 α-Bromglyoxal-2-nitro-4-methylphenylhydrazon 
• 85355-46-0 4-methyl-2-nitrophenylacetaldehyde 
• 85355-34-6 Acetic acid 1-chloro-2-(4-methyl-2-nitro-phenyl)-ethyl ester 
• 85355-56-2 1-(2-Bromo-2-chloro-ethyl)-4-methyl-2-nitro-benzene 
• 111334-97-5 2-[(4-Methyl-2-nitro-phenyl)-hydrazono]-1,1,3,3-tetraoxo-5-phenyl-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 
• 111334-99-7 5-(4-Methoxy-phenyl)-2-[(4-methyl-2-nitro-phenyl)-hydrazono]-1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 
• 111335-07-0 5-(4-Hydroxy-phenyl)-2-[(4-methyl-2-nitro-phenyl)-hydrazono]-1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 
• 111335-03-6 5-(4-Bromo-phenyl)-2-[(4-methyl-2-nitro-phenyl)-hydrazono]-1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 
• 111335-01-4 5-(4-Dimethylamino-phenyl)-2-[(4-methyl-2-nitro-phenyl)-hydrazono]-1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 
• 111335-05-8 2-[(4-Methyl-2-nitro-phenyl)-hydrazono]-5-(3-nitro-phenyl)-1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 
• 110057-35-7 amino-(4-methyl-2-nitro-phenylhydrazono)-acetic acid ethyl ester 

Relevant academic research and scientific papers

Synthesis, characterization and crystal structure of four new asymmetric triazene ligands: An example of linear HgII complex with Hg. π secondary bonding interactions

In this work, the asymmetric ligands [1-(phenyl)-3-(2-nitro-4-methylphenyl)]triazene (1), [1-(4- methylphenyl)-3-(2-nitro-4-methylphenyl)]triazene (2), [1-(4-ethylphenyl)-3-(2-nitro-4-methylphenyl)]triazene (3) and [1-(4-ethoxyphenyl)-3-(2-nitro-4-methylp

Production process and system for insoluble azo pigments

An insoluble azo pigment is produced by ejecting a diazo solution and a grounding solution continuously into an ejector such that within the ejector, the diazo solution and grounding solution are mixed with each other and are subjected to a coupling reaction. A production system for the insoluble azo pigment includes the following units (1) to (4): (1) a first feed tank (2) for a first fluid selected from the diazo solution or grounding solution, a first flow path (a) for feeding the first fluid to nozzles of an ejector (1), and a pump (d) for feeding the first fluid through the first flow path; (2) the ejector (1) provided with the nozzles, a suction chamber, a diffuser, and a temperature control device (g); (3) a second feed tank (3) for a second fluid, a second flow path (b) for guiding the second fluid into the suction chamber, and a flow control device (e) for controlling a flow rate of the second fluid through the second flowpath (b); and (4) a heat treatment tank (5) for subjecting to heat treatment a suspension of the insoluble azo pigment formed by a reaction between the first fluid and the second fluid, and a third flow path (a′) for guiding the suspension from the diffuser to the heat treatment tank.

Synthesis of Substituted Indoles via Meerwein Arylation

A new method for the synthesis of substituted indoles is detailed.Meerwein arylation of 4- and 6-substituted 2-nitrobenzenediazonium chlorides with vinyl acetate or vinyl bromide and subsequent reductive cyclization of the resulting adducts affords the corresponding 6- and 4-substituted (CH3, OCH3, Cl, Br, CF3) indoles.The diazonium bisulfates of weakly basic 2-nitroanilines (4-Cl, 6-Br, 4-CF3) gave higher yields of Meerwein arylation adducts than the corresponding diazonium chlorides.Coupling of 2-nitrobenzenediazonium chloride with 2-acetoxy-1-alkenes followed byreductive cyclization affords 2-alkylindoles.