1081-28-3

Upstream product

• 670-96-2 2-Phenylimidazole 
• 65-85-0 benzoic acid 
• 28682-70-4 pyridazine-4,5-diamine 
• 359792-95-3 2-phenyl-1H-imidazo[4,5-d]pyridazine-4,7-dicarboxylic acid 
• 359792-90-8 dimethyl 2-phenyl-1H-imidazo[4,5-d]pyridazine-4,7-dicarboxylate 

Relevant academic research and scientific papers

NOVEL COMPOUND FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

Provided are a compound for an organic light emitting device and an organic light emitting device comprising the same. To this end, it is possible to provide a compound for an organic light emitting device which can be used as a host, a hole-transport material, or an electron-transport material capable of enhancing light-emitting efficiency of phosphorescent light-emitting materials by having outstanding electrical stability, an electron and hole transportability, and a high level of triplet state energy, and the organic light emitting device.

An electroluminescent compound and an electroluminescent device comprising the same

The present invention relates to an organic light emitting compound which is employed in an organic light emitting device. The compound is represented by chemical formula 1. An organic light emitting device has excellent light emitting properties in driving voltage, luminance, and long lifespan, when the compound is employed as a phosphorescent host compound in a light emitting layer.

Dienophilicity of imidazole in inverse electron demand Diels-Alder reactions: Cycloadditions with 1,2,4,5-tetrazines and the structure of zarzissine

The inverse electron demand cycloadditions of 2-substituted imidazoles with dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylate produced imidazo[4,5-d]pyridazines in good yields. This chemistry was applied to the synthesis of 2-amino-1H-imidazo[4,5-d]pyridazine (1), the structure reported for zarzissine, a cytotoxic marine alkaloid. Differences in the 1H- and 13C NMR spectra of 1 with those reported for zarzissine necessitated a structural revision, and zarzissine was then considered to be the corresponding 2-amino-1H-imidazo[4,5-b]pyrazine (2), which was subsequently synthesized from the parent heterocycle.