Utilizing the dramaticacceleratingeffect of 2-aminophenols, we developed a copper-catalyzed system for the selective synthesis of di- and triphenylamines. In addition, N- and O-arylation could be achieved in coupling reactions between 2-aminophenol and nitroaryl halides.
[EN] 2,9-FUNCTIONALIZED BENZIMIDAZOLO[1,2-A]BENZIMIDAZOLES AS HOSTS FOR ORGANIC LIGHT EMITTING DIODES (OLEDS)<br/>[FR] BENZIMIDAZOLO[1,2-A] BENZIMIDAZOLES 2,9-FONCTIONNALISÉ UTILISÉS COMME HÔTES POUR DIODES ÉLECTROLUMINESCENTES ORGANIQUES (OLED)
申请人:IDEMITSU KOSAN CO LTD IKC
公开号:WO2016016791A1
公开(公告)日:2016-02-04
The present invention relates to compounds of formula (I), a process for their production and their use in electronic devices, especially electroluminescent devices. When used as charge transport material and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula (I) may provide improved efficiency and reduced driving voltage of electroluminescent devices.