Polycyclic fused ring type π-conjugated organic material, intermediate therefor, process for producing polycyclic fused ring type π-conjugated organic material, and process for producing intermediate of polycyclic fused ring type π-conjugated organic material
申请人:Japan Science and Technology Agency
公开号:US07973190B2
公开(公告)日:2011-07-05
A polycyclic fused ring type π-conjugated organic material (VIIa, VIIb, VIIc, VIId) is obtained in the following manner. That is, as shown in Scheme 1 below, a starting material (I) is dimetalated with an organometallic base. The starting material (I) thus dimetalated is trapped with an organosilicon reagent (i: (1) n-BuLi or t-BuLi; (2) HMe2SiCl). As a result, an intermediate is obtained. Thereafter, the intermediate is allowed to react with a metal reductant. This causes an intramolecular reductive cyclization reaction to proceed. As a result, a dianion intermediate is produced. The dianion intermediate is trapped with an electrophile (ii: (1) LiNaph, THF, rt, 5 min; (2) electrophile or NH4Cl) In this way, the polycyclic fused ring type π-conjugated organic material is obtained. The polycyclic fused ring type π-conjugated organic material, an intermediate therefor, a method for producing the polycyclic fused ring type π-conjugated organic material, and a method for producing the intermediate make it possible to provide a polycyclic fused ring type π-conjugated organic material having excellent light-emitting and charge-transporting properties.
通过以下方法获得多环融合环式π-共轭有机材料(VIIa、VIIb、VIIc、VIId)。如下图1所示,起始材料(I)通过有机金属碱二金属化。因此,二金属化的起始材料(I)被有机硅试剂(i: (1) n-BuLi或t-BuLi; (2) HMe2SiCl)捕获,从而得到中间体。然后,中间体与金属还原剂反应,引起分子内还原环化反应。结果,产生一个二阴离子中间体。该二阴离子中间体与电子亲和体(ii: (1) LiNaph、THF、rt、5分钟; (2) 电子亲和体或NH4Cl)结合,从而得到多环融合环式π-共轭有机材料。通过该方法,可以提供具有优异发光和载流性能的多环融合环式π-共轭有机材料,以及其中间体的制备方法和多环融合环式π-共轭有机材料的制备方法。