5869-58-9

Upstream product

• 141-97-9 ethyl acetoacetate 
• 106-49-0 p-toluidine 
• 2028-84-4 p-methylbenzenediazonium chloride 
• 57573-52-1 4-methylbenzene diazonium 

Downstream Products

• 4550-15-6 1-phenyl-3-methyl-4-(p-methylphenylazo) pyrazole-5-one 
• 79326-59-3 N¹-(p-tolyl)-3-methyl-4-(p-tolylazo)-2-pyrazolin-5-one 
• 34165-82-7 2-Benzoyl-5-methyl-4-(p-tolyl-hydrazono)-2,4-dihydro-pyrazol-3-one 
• 1334629-54-7 7-methyl-5-oxo-6-(4-methylphenyldiazenyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-2-sulfonamide 
• 1333221-29-6 C₂₁H₁₉N₅O₃S 

Relevant academic research and scientific papers

Synthesis and Pharmacological Investigations of Novel Pyrazolyl and Hydrazonoyl Cyanide Benzimidazole Entities

Various novel benzimidazole entities linked to pyrazolyl and hydrazonoyl cyanide substrates carrying aryl and heteroaryl groups (8a–e to 10a–e) were synthesized using new route syntheses and were focused on their pharmacological evaluation as one of the m

Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3--cyano-2- pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates

A new procedure for the synthesis of known azo pyridone dyes is presented. A series of 5-(substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2--pyridones were prepared from ethyl 3-oxo-2-(substituted phenylazo)butanoates and cyanoacetamide in acetone using potassium hydroxide as a catalyst by simple refluxing the reaction mixture. The structure of these dyes was confirmed by FT-IR, NMR and UV-Vis spectroscopy. Copyright 2011 (CC) SCS.

A facile and rapid synthesis of benzothiazines

A series of 2H. 4H-2-[3-methyl-4-(substituted) phenyl azo pyrazolon-5-one-1-yl]-carbonyl methyl-3-oxo-1,4-benzothiazines have been synthesized by the reaction of 2H, 4H-2-hydrazino carbonyl methyl-3-oxo-1,4- benzothiazine with substituted acetoacetic ester derivatives using ultrasound and microwave irradiation. All the synthesized compounds were investigated for their antibacterial activities. The result indicated that the compounds showed convincing activities against Gram-positive bacteria (Bacillus subtilis and Streptococcus lactis) when compared with standard drug (ampicillin trihydrate). These compounds were also synthesized by conventional method and their structures have been elucidated on the basis of spectral analyses and chemical analysis.

Some Transition Metal Complexes Derived from the Heterocyclic Ligands 3-Methyl-4-Arylazopyrazole-5-Ones

Some planar and octahedral complexes of the sulphates of Cu(II) and Ni(II) with different 3-methyl-4-arylazo pyrazole-5-ones have been prepared.The complexes contain only one molecule of the ligand which functions as a bidentate donar coordinating through its carbonyl and azo group while the rest of the positions in the coordination geometry of metal are occupied by water molecules.The magnetic and electronic data of the complexes are discussed in the light of structures assigned.