4,7-Dimethoxy-1,10-phenanthroline: An Excellent Ligand for the Cu-Catalyzed <i>N</i>-Arylation of Imidazoles
作者:Ryan A. Altman、Stephen L. Buchwald
DOI:10.1021/ol0608505
日期:2006.6.1
[reaction: see text] 4,7-Dimethoxy-1,10-phenanthroline (L) was found to be an efficientligand for the copper-catalyzed N-arylation of imidazole with aryl iodides and bromides under mild conditions. A variety of hindered and functionalized imidazoles and aryl halides were transformed in good to excellent yields.
ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND LIGHTING DEVICE
申请人:Tanaka Tatsuo
公开号:US20090243479A1
公开(公告)日:2009-10-01
Disclosed is an organic electroluminescent device having high external quantum efficiency and long life. Also disclosed are an illuminating device and, a display device. The organic electroluminescent device is characterized by containing at least one compound having a partial structure represented by the following general formula (1). [chemical formula 1] (1) In the formula, R
1
represents a group (preferably an aromatic hydrocarbon group, an aromatic heterocyclic group, an alkyl group or an alkoxy group) having 4-20 carbon atoms in total and a substituent having a formula weight of 70-350 (preferably an alkyl group or an alkoxy group); R
2
-R
4
independently represent a substituent; n2 represents a number of 0-4; n3 represents a number of 0-2; n4 represents a number of 0-8; and Q represents an atomic group necessary for forming an aromatic hydrocarbon ring or an aromatic heterocyclic ring.