583052-20-4

Upstream product

• 3678-62-4 2-chloro-4-picoline 
• 73852-19-4 3,5-bis-trifluromethylphenylboronic acid 
• 328-70-1 3,6-bis(trifluoromethyl)bromobenzene 

Downstream Products

• 847373-37-9 platinum(II) [4,6-bis(trifluoromethyl)-2-(4-methyl-2-pyridinyl-κN)phenyl-κC][3-(diphenylphosphino)-1,1,1-trifluoro-2-(trifluoromethyl)-2-propanolato-κO,κP] 

Relevant academic research and scientific papers

New blue phosphorescent iridium complexes with various ancillary ligands based on fluorinated 2-phenyl-4-methylpyridine

In this study, a series of new blue phosphorescent iridium(III) complexes with ligands of (CF3)2Meppy [(CF3)2Meppy = 2-(3′,5′-bis-trifluoromethylphenyl)-4- methylpyridine] were successfully synthesized and their photophysical propert

The role of ancillary ligands in iridium(lll) complexes for blue OLEDs

In this study, new deep blue emitting mixed ligand iridium(III) complexes comprising one cyclometalating, two phosphines trans to each other and two cis-ancillary ligands, such as Ir{(CF3)2Meppy}(PPh 3)2(H)(Cl),

New trifluoromethyl modified iridium(III) complex for high-efficiency sky-blue phosphorescent organic light-emitting diode

A new and efficient trifluoromethyl modified sky-blue iridium(III) coordination compound (Ir-CF3) is well designed and prepared by using bis(trifluoromethyl) modified 4-methyl-2-phenylpyridine as the cyclometalating ligand and 2-(1H-imidazol-2-

ELECTROLUMINESCENT BIS-CYCLOMETALLED IRIDIUM COMPOUNDS AND DEVICES MADE WITH SUCH COMPOUNDS

One embodiment of this invention is bis-cyclometalled electroluminescent complexes of iridium (III) according to Formula I. Another embodiment of this invention is electronic devices in which the active layer includes a bis-cyclometalled electroluminescent Ir(III) complex.

Palladium-catalyzed cross-coupling reactions of 2-pyridylborates with air-stable HASPO religands

A novel, air-stable TADDOLP(O)H derivative bearing electron-withdrawing substituents allows for efficient Suzuki-Miyaura cross-couplings with challenging electron-deficient 2-pyr-idylborates as nucleophiles.

Synthesis, structural characterization, and initial electroluminescent properties of bis-cycloiridiated complexes of 2-(3,5-bis(trifluoromethyl)phenyl)-4-methylpyridine

A series of bis-cyclometalated Ir(III) complexes (8-10, 12, 15, 17, 19, 21, 23, 25, 28, 29 and 33) bearing two chromophoric N∧C cyclometalated ligands derived from 2-(3,5-bis(trifluoromethyl)phenyl)-4-methylpyridine (1) and a third nonchromophoric ligand has been synthesized. A palladium-catalyzed cross-coupling reaction between 2-chloro-4-methylpyridine (2) and 3,5-bis(trifluoromethyl)phenylboronic acid (3) was used to prepare 2-(3,5-bis(trifluoromethyl)phenyl)-4-methylpyridine (1). Cyclometalation of (1) by IrCl3 was carried out in (MeO)3P{double bond, long}O, with the formation of chloro-bridged dimer [N∧C]2Ir(μ-Cl)2Ir[C∧N]2 (8). Reaction of (8) with lithium 2,4-pentanedionate, lithium 2,2,6,6-tetramethyl-heptane-3,5-dionate (13), dipivaloyltrimethylsilylphosphine (14), 2,2-dimethyl-6,6,7,7,8,8,8-heptafluoro-3,5-octadione (16), 1,1,1,3,3,3-hexafluoro-2-pyridin-2-yl-propan-2-ol (18), 1,1,1,3,3,3-hexafluoro-2-pyrazol-1-ylmethyl-propan-2-ol (20), 2-diphenylphosphanylethanol (22), and 1-diphenylphosphanylpropan-2-ol (24), afforded octahedral iridium complexes 9, 12, 15, 17, 19, 21, 23 and 25, respectively. Complex 10, which contains three different ligands (L1 = N∧C of 1; L2 = N∧C of 4,4′-dimethyl-[2,2′]bipyridinyl 4; L3 = O∧O of 2,4-pentanedione), and complex 11, which contains no cyclometalated ligands (L1 = 4; L2 = L3 = Cl; L4 = O∧O of 2,4-pentanedione) were also isolated as minor products in a one-pot reaction between a 94:5 mixture of 1 and 4, IrCl3 and lithium 2,4-pentanedionate. Reaction of 8 with diphenylphosphanylmethanol (27) in 1,2-dichloroethane unexpectedly led to complexes 28 and 29. The reactions of 8 with benzoylformic acid resulted in the formation of hydroxyl-bridged dimer [N∧C]2Ir(μ-OH)2Ir[C∧N]2 (33). According to X-ray analyses, Ir-to-Ir distances in the crystal cell increase from 6.86 A? for 10 to 13.31 A? for 33. The angle theta, which represents the twisting of two cyclometalated C-Ir-N planes relative to each other, varies from 97.5° for 21 to 90.76 for complex 28. OLED devices were fabricated from several Ir complexes and preliminary results are discussed.

Novel catalysts useful for catalyzing the coupling of arylhalides with arylboronic acids

The present invention relates to a new method of cross-coupling aryl moieties comprising reacting an arylhalide with an arylboronic acid in the presence of a palladium compound and a compound comprising a di-alkylphosphine moiety.