Invention Grant

  • Patent Title: 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
  • Patent Title (中): 多环稠环型共轭有机材料,其中间体,多环稠环型共轭有机材料的制备方法,多环稠环型共轭有机物中间体的制备方法
  • Application No.: US10578352
    Application Date: 2004-11-05
  • Publication No.: US07973190B2
    Publication Date: 2011-07-05
  • Inventor: Shigehiro YamaguchiCaihong Xu
  • Applicant: Shigehiro YamaguchiCaihong Xu
  • Applicant Address: JP Saitama
  • Assignee: Japan Science and Technology Agency
  • Current Assignee: Japan Science and Technology Agency
  • Current Assignee Address: JP Saitama
  • Agency: Harness, Dickey & Pierce, P.L.C.
  • Priority: JP2003-378923 20031107; JP2004-224771 20040730
  • International Application: PCT/JP2004/016433 WO 20041105
  • International Announcement: WO2005/044826 WO 20050519
  • Main IPC: C07F7/08
  • IPC: C07F7/08
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
Abstract:
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.
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