- Meta - And para -Functionalized Thermally Crosslinkable OLED-Materials through Selective Transition-Metal-Catalyzed Cross-Coupling Reactions
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Herein, a synthetic approach using selective transition-metal-catalyzed cross-coupling reactions to thermally crosslinkable OLED materials based on vinyl-functionalized arylamines is reported. In a modular approach, 9,9-dialkyl-2,7-diiodo-9 H -fluorene underwent a selective Ullmann cross-coupling reaction with bromo-substituted-diphenylamines to give 9,9-dialkyl-2,7-bis(bromo-substituted-diphenylamino)-9 H -fluorenes that underwent end-functionalization by the Suzuki-Miyaura reaction using potassium vinyltrifluoroborate to give the corresponding 9,9-dialkyl-2,7-bis(vinyl-substituted-diphenylamino)-9 H -fluorenes. Novel meta -functionalized materials were synthesized, which are difficult to prepare by traditional synthetic pathways. The thermal behavior of the compounds was investigated by DSC measurements, indicating a lower thermal sensitivity of the meta -substituted materials than their para -functionalized analogues.
- Hempe, Matthias,Schnellb?cher, Lutz,Wiesner, Tobias,Reggelin, Michael
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p. 4489 - 4499
(2017/09/26)
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- Organic Compound and Organic Light Emitting Diode Devices using the same
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The present invention relates to an organic compound and an organic light emitting diode device using same. The organic compound is selected from an aromatic ring compound, which is represented by Chemical formula wherein R is a substituted or unsubsituted alkyl group having C_1 to C_12; and A and B are symmetrically or asymmetrically bound to a 2-position and a 7-position of a fullerene core and are independently substituted or unsubstituted, and a heterogeneous ring compound. According to the present invention, efficiency of the organic light diode device can be increased; and driving voltages for the organic light diode device can be reduced.COPYRIGHT KIPO 2015
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Paragraph 0092-0095
(2016/11/17)
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- Carbon-rich molecules: Synthesis and isolation of aryl/heteroaryl terminal bis(butadiynes) (HC≡C-C≡C-Ar-C≡C-C≡CH) and their applications in the synthesis of oligo(arylenebutadiynylene) molecular wires
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The synthesis, isolation and characterisation are reported for a series of terminal aryl/heteroaryl bis(butadiynes) (HC≡C-C≡C-Ar-C≡C- C≡CH) 4a-e including the X-ray molecular structure of the 2,5-pyridylene derivative 4d; compound 4a and the mono-protected analogue [HC≡C- C≡C-Ar-C≡C-C≡C-C(OH)Me2] 5a serve as convenient precursors for the synthesis of highly-conjugated oligo(arylenebutadiynylene)s. The Royal Society of Chemistry.
- West, Kara,Wang, Changsheng,Batsanov, Andrei S.,Bryce, Martin R.
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supporting information; experimental part
p. 1934 - 1937
(2009/01/31)
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