On August 22, 2019, Stoessel, Philipp; Auch, Armin published a patent.Category: ethers-buliding-blocks The title of the patent was Iridium complexes with hexadentate tris-cyclometalated arylpyridine ligands as triplet emitters for organic electroluminescent devices. And the patent contained the following:
Iridium complexes with hexadentate 1,3,5-benzenetriyl-bridged tris-cyclometalated arylpyridine ligands, e.g., of the type I (1, X = H, D; Ar = Ph, 4-PhC6H4, 4-PhC6H4C6H4, heterocyclyl; R1 = Me, Ph, tBu, CD3, cyclopenteno, etc.) were prepared by Sonogashira coupling of 1-chloro-3,5-diethynylbenzene with arylpyridine bromides with subsequent hydrogenation or deuteration and Suzuki coupling with appropriate aryl bromides or boronates. Bromination of the complexes in 4-position relative to cyclometalation site with subsequent cyanation or Suzuki coupling afforded modified complexes 1. The complexes 1 were examined for their electroluminescence by constructing test OLED devices according to standard protocol by either vacuum or solution-based processes. The experimental process involved the reaction of 2-(3-Methoxy-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 1417036-28-2).Category: ethers-buliding-blocks
The Article related to iridium cyclometalated arylpyridine hexadentate benzenetriyl bridged complex preparation electroluminescence, suzuki sonogashira coupling cyclometalation preparation iridium hexadentate arylpyridine complex, triplet emitter oled iridium hexadentate cyclometalated arylpyridine complex and other aspects.Category: ethers-buliding-blocks
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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem