TRANSVERSE CURRENT SUPPRESSING MATERIAL, CARBAZOLE COMPOUND, HOLE-INJECTION LAYER AND ORGANIC ELECTROLUMINESCENT ELEMENT
摘要:
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)].
The site-selectivity and mechanism of Pd-catalyzed C(sp<sup>2</sup>)–H arylation of simple arenes
作者:Daeun Kim、Geunho Choi、Weonjeong Kim、Dongwook Kim、Youn K. Kang、Soon Hyeok Hong
DOI:10.1039/d0sc05414c
日期:——
functionalization reactions in organic synthesis. Despite the seminal breakthrough of the Pd-catalyzed C(sp2)–H arylation of simple arenes via a concerted metalation–deprotonation (CMD) pathway in 2006, understanding the site-selectivity of the reaction still remains elusive. Here, we have comprehensively investigated the scope, site-selectivity, and mechanism of the Pd-catalyzed direct C–H arylation reaction of
A new strategy for the synthesis of 2‐aryl‐ and 2‐heteroaryl fluoroarenes has been developed. An intermolecular domino Grignard‐coupling–fluorination sequence affords a range of 2‐fluorobiaryls from aryl bromides under mild conditions. This methodology can be further extended to the synthesis of 2′‐aryl‐2‐fluorobiphenyls.
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)].