A variety of fluorinated terphenyls were prepared by site-selective Suzuki–Miyaura cross-couplingreactions of dibrominated fluorobenzenes, such as 1,2-dibromo-3,5-difluorobenzene, 1,4-dibromo-2-fluorobenzene, 1,3-dibromo-4-fluorobenzene, and 1,2-dibromo-4-fluorobenzene.
TRANSVERSE CURRENT SUPPRESSING MATERIAL, CARBAZOLE COMPOUND, HOLE-INJECTION LAYER AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:TOSOH CORPORATION
公开号:US20240251665A1
公开(公告)日:2024-07-25
There is provided a transverse current suppressing material that suppresses a transverse current of an organic electroluminescent element, a carbazole compound, a hole-injection layer containing the transverse current suppressing material and the carbazole compound and an organic electroluminescent element that has good drive voltage, luminous efficiency and durability and has a lower transverse current. A transverse current suppressing material for an organic electroluminescent element, represented by the formula (1) [In the formula (1), A is represented by the formula (2) or (3), and B is represented by the formula (4)].