20052-93-1

Upstream product

• 25145-04-4 (Z)-4-trimethylsiloxypent-3-en-2-one 
• 3425-23-8 2-methoxybenzenediazonium chloride 
• 123-54-6 acetylacetone 
• 90-04-0 2-methoxy-phenylamine 

Downstream Products

• 30081-92-6 4-(2-methoxy-phenylazo)-3,5-dimethyl-isoxazole 
• 70826-60-7 2-[4-(2-methoxy-phenylazo)-3,5-dimethyl-pyrazol-1-yl]-4,6-dimethyl-pyrimidine 
• 1238699-73-4 3-[3-(dimethylamino)prop-2-enoyl]-1-(2-methoxyphenyl)pyridazin-4(1H)-one 
• 37154-33-9 3,5-dimethyl-1,1-dioxo-1H-1λ⁶-[1,2,6]thiadiazin-4-one (2-methoxy-phenyl)-hydrazone 
• 79699-17-5 4-(2-Methoxy-phenylazo)-3,5-dimethyl-pyrazole-1-carbothioic acid phenylamide 
• 129302-62-1 3-(N-Nitro-N-2-methoxyphenylhydrazono)pentane-2,4-dione 

Relevant academic research and scientific papers

Aryldiazenyl Radicals from Arylazo Sulfones: Visible Light-Driven Diazenylation of Enol Silyl Ethers

A versatile protocol for the diazenylation of enol silyl ethers under visible light irradiation is presented herein. The reaction is based on the underused reaction of a nitrogen-based radical (the diazenyl radical) with an enol silyl ether. Arylazo sulfones were used as photoactivatable precursors of these diazenyl radicals. The resulting azaderivatives are potentially bioactive compounds as well as starting materials for the synthesis of N-containing heterocycles. (Figure presented.).

Arylazo-3,5-dimethylisoxazoles: Azoheteroarene Photoswitches Exhibiting High Z-Isomer Stability, Solid-State Photochromism, and Reversible Light-Induced Phase Transition

Reversibly photoswitchable phenylazo-3,5-dimethylisoxazole and 37 aryl-substituted derivatives were synthesized. Excellent photoswitching ability of these compounds in solution and the solid state was demonstrated. Through kinetics studies by means of NMR spectroscopy, high Z-isomer stability was demonstrated. Interestingly, the majority of the derivatives showed light-induced contrasting color changes in solution and the solid state. Besides, many of the derivatives exhibit partial phase transition upon UV irradiation. The highlight of this class of photoswitches is the reversible light-induced phase transition between solid and liquid phases in the parent compound, which can be used in patterned crystallization. These results show that this new class of azoheteroarene based photoswitches has opportunities to be useful in various domains.

Pyridazinone compounds

The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0): wherein R1 represents a substituent, R2 represents a hydrogen atom, or a substituent, R3 represents a hydrogen atom, or a substituent, Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.

Spectral and cyclic voltammetric studies on some intramolecularly hydrogen bonded arylhydrazones: Crystal and molecular structure of 2-(2-(3-nitrophenyl)hydrazono)-5,5-dimethylcyclohexane-1,3-dione

A series of arylhydrazone derivatives (1-7) were prepared by the coupling of acetylacetone/dimedone with respective aromatic diazonium salts and characterized by IR, 1H and 13C NMR spectra. The IR and NMR spectral data clearly manife

Reaction of (cyano)thioacetamide with arylhydrazones of β-diketones: Novel synthesis of 2(1H)-pyridinethiones, thieno[2,3-b]pyridines, and pyrazolo[3,4-b]pyridines

A novel synthesis of 2(1H)-pyridinethiones, thieno[2,3-b]pyridines and pyrazolo[3,4-b]pyridines utilizing (cy-ano)thioacetamide and arylhydrazones of 1,3-diketones as starting components is described.