Reductive acylamination of pyridine N-oxide with ethylenediamine and phenylenediamines
摘要:
Reactions of pyridine N-oxide with ethylenediamine and o- and p-phenylenediamines in the presence of p-toluenesulfonyl chloride in alkaline medium lead to the formation of the corresponding N,N'-bis-(p-tolylsulfonyl)-N,N'-bis(pyridin-2-yl)diamines as a result of reductive acylamination.
A facile synthetic route to benzimidazolium salts bearing bulky aromatic N-substituents
作者:Gabriele Grieco、Olivier Blacque、Heinz Berke
DOI:10.3762/bjoc.11.182
日期:——
An atom-economic syntheticroute to benzimidazolium salts is presented. The annulatedpolycyclic systems: 1,3-bis(2,4,6-trimethylphenyl)-1H-benzo[d]imidazol-3-ium chloride (1-Cl), 1,3-bis(2,6-diisopropylphenyl)-1H-benzo[d]imidazol-3-ium chloride (2-Cl), 1,3-diphenyl-1H-benzo[d]imidazol-3-ium chloride (3-Cl), and 1,3-di(pyridin-2-yl)-1H-benzo[d]imidazol-3-ium chloride (4-Cl) were prepared in a two-step
An insight into the redox activity of Ru and Os complexes of the N,N′-bis(2-pyridyl)benzene-1,2-diamine ligand: Structural, electrochemical and electronic structure analysis by density functional theory calculations
作者:Rajesh Deka、Peter C. Junk、David R. Turner、Glen B. Deacon、Harkesh B. Singh
DOI:10.1016/j.ica.2019.119193
日期:2020.1
Os complexes of the ligand, N,N′-bis(2-pyridyl)benzene-1,2-diamine namely, [RuIII(acac)2(Py-bqdi)], (9), [RuII(Ph-trpy)(Py-bqdi)Cl], (10) and [OsII(bpy)2(Py-bqdi)](ClO4), ([11]ClO4) [where Py-bqdi = N,N′-dipyridyl-o-benzoquinonediimine, acac = 2,4-pentanedionate, Ph-trpy = 4′-phenyl-2,2′:6′,2″-terpyridine, bpy = 2,2′-bipyridine] is reported. The molecular structures of complexes 9-[11]ClO4 are authenticated
to induce conformational switching between the kite and vase forms of diquinone-diquinoxaline resorcin[4]arenecavitands upon redox interconversion. The H-bond acceptors were placed on the quinoxaline walls with the purpose of stabilizing the vase form only in the reduced hydroquinone state of the cavitand by forming H-bonds with the hydroquinone OH groups. Design guidelines for successful acceptors
评估了各种 H 键受体基团在氧化还原相互转化时诱导二醌-二喹喔啉间苯二酚 [4] 芳烃空腔体的风筝和花瓶形式之间构象转换的倾向。氢键受体被放置在喹喔啉壁上,目的是通过与氢醌 OH 基团形成氢键来稳定花瓶形式,仅在腔体的还原氢醌状态。成功接受器的设计指南被推导出来。甲酰胺受体被证明是最佳候选者。基于该部分,制备了一种氧化还原可切换的三苯乙烯基篮子,该篮子可以在其封闭的花瓶构象中完全空间封装客体。
ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
申请人:Universal Display Corporation
公开号:US20210292343A1
公开(公告)日:2021-09-23
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