2121-28-0Relevant academic research and scientific papers
IRIDIUM COMPLEX COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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, (2018/06/09)
The present invention relates to an iridium complex compound and an organic electroluminescent device using the same. More specifically, the present invention relates to an iridium complex compound securing low driving voltage as well as excellent color purity, luminescent properties, luminescent efficiency, and lifespan properties when used as a dopant in light-emitting layers of organic electroluminescent devices by producing the novel compound which is a complex having iridium as central metal. The present invention further relates to a method for efficiently synthesizing the same, and an organic electroluminescent device using the same.(01) Substrate(02) Positive electrode(03) Negative electrode(04) Hole injection layer(05) Hole transporting layer(06) Light-emitting layer(07) Electron transporting layer(08) Electron injection layerCOPYRIGHT KIPO 2018
An expedient synthesis of 5-substituted imidazo[1,2-c]quinazolines
Korshin, Edward E.,Sabirova, Leila A.,Levin, Yakov A.
, p. 3512 - 3522 (2013/01/15)
An efficient three-step synthesis of 5-substituted 2,3-dihydroimidazo[1,2- c]quinazolines and imidazo[1,2-c]quinazolines was elaborated. 2-(2-Aminophenyl)-4,5-dihydro-1H-imidazole, prepared by phosphorus pentasulfide catalyzed condensation of 2-aminobenzonitrile with ethylenediamine, smoothly reacted with aldehydes to give the corresponding 2,3,5,6-tetrahydroimidazo[1,2- c]quinazolines. The CH-NH fragments of the latter were subjected to selective oxidative dehydrogenation with one equivalent of potassium permanganate on silica gel to give 2,3-dihydroimidazo[1,2-c]quinazolines. With two equivalents of potassium permanganate on silica gel, a one-pot exhaustive dehydrogenation to imidazo[1,2-c]quinazolines was accomplished. Georg Thieme Verlag KG · Stuttgart · New York.
