226713-32-2Relevant academic research and scientific papers
Thermally Activated Delayed Fluorescent Donor-Acceptor-Donor-Acceptor π-Conjugated Macrocycle for Organic Light-Emitting Diodes
Izumi, Saika,Higginbotham, Heather F.,Nyga, Aleksandra,Stachelek, Patrycja,Tohnai, Norimitsu,Silva, Piotr De,Data, Przemyslaw,Takeda, Youhei,Minakata, Satoshi
, p. 1482 - 1491 (2020)
A new class of thermally activated delayed fluorescent donor-acceptor-donor-acceptor (D-A-D-A) π-conjugated macrocycle comprised of two U-shaped electron-acceptors (dibenzo[a,j]phenazine) and two electron-donors (N,N′-diphenyl-p-phenyelendiamine) has been
Novel Schiff base type amine antioxidant as well as preparation method and application thereof
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Paragraph 0090, (2018/06/04)
The invention discloses a novel Schiff base type amine antioxidant as well as a preparation method and application thereof. The novel Schiff base type amine antioxidant comprises a compound shown as aformula (I) or (II) in the description, wherein the R1
Self-Assembly of a Functional Oligo(Aniline)-Based Amphiphile into Helical Conductive Nanowires
Bell, O. Alexander,Wu, Guanglu,Haataja, Johannes S.,Br?mmel, Felicitas,Fey, Natalie,Seddon, Annela M.,Harniman, Robert L.,Richardson, Robert M.,Ikkala, Olli,Zhang, Xi,Faul, Charl F. J.
supporting information, p. 14288 - 14294 (2015/11/28)
A tetra(aniline)-based cationic amphiphile, TANI-NHC(O)C5H10N(CH3)3+Br- (TANI-PTAB) was synthesized, and its emeraldine base (EB) state was found to self-assemble into nanowires in aqueous
Rational and predictable chemoselective synthesis of oligoamines via Buchwald-Hartwig amination of (hetero)aryl chlorides employing Mor-Dalphos
Tardiff, Bennett J.,McDonald, Robert,Ferguson, Michael J.,Stradiotto, Mark
experimental part, p. 1056 - 1071 (2012/02/15)
We report a diverse demonstration of synthetically useful chemoselectivity in the synthesis of di-, tri-, and tetraamines (62 examples) by use of Buchwald-Hartwig amination employing a single catalyst system ([Pd(cinnamyl)Cl]2/L1; L1 = N-(2-(di(1-adamantyl)phosphino)phenyl) morpholine, Mor-DalPhos). Competition reactions established the following relative preference of this catalyst system for amine coupling partners: linear primary alkylamines and imines > unhindered electron-rich primary anilines, primary hydrazones, N,N-dialkylhydrazines, and cyclic primary alkylamines > unhindered electron-deficient primary anilines, α-branched acyclic primary alkylamines, hindered electron-rich primary anilines ? cyclic and acyclic secondary dialkylamines, secondary alkyl/aryl and diarylamines, α,α-branched primary alkylamines, and primary amides. The new isomeric ligand N-(4-(di(1-adamantyl)phosphino)phenyl)morpholine (p-Mor-DalPhos, L2) was prepared in 63% yield and was crystallographically characterized; the [Pd(cinnamyl)Cl]2/L2 catalyst system exhibited divergent reactivity. Application of the reactivity trends established for [Pd(cinnamyl)Cl] 2/L1 toward the chemoselective synthesis of di-, tri-, and tetraamines was achieved. Preferential arylation was observed at the primary alkylamine position within 2-(4-aminophenyl)ethylamine with [Pd(cinnamyl)Cl] 2/L1 and 4-chlorotoluene (affording 5a); the alternative regioisomer (5a′) was obtained when using [Pd(cinnamyl)Cl]2/L2. These observations are in keeping with coordination chemistry studies, whereby binding of 2-(4-aminophenyl)ethylamine to the in situ generated [(L1)Pd(p-tolyl)] + fragment occurred via the primary amine moiety, affording the crystallographically characterized adduct [(L1)Pd(p-tolyl)(NH2CH 2CH2(4-C6H4NH2)] +OTf- (7) in 72% yield.
Oligoaniline-Functionalized terpyridine ligands and their ruthenium(II) complexes: Synthesis, spectroscopic property and redox behavior
Qiu, Dongfang,Cheng, Yanxiang,Wang, Lixiang
scheme or table, p. 3247 - 3261 (2009/08/08)
A series of oligoaniline-functionalized mono- and bis-topic terpyridine ligands, i.e. C6H5[N(R)C6H4] nTPY (R = H, butyl, tert-butyloxycarbonyl; n = 1-4; TPY = 2,2′:6′,2″-terpyridyl) and TPYC6H 4[N(R)C6H4]mTPY (R = H, tert-butyloxycarbonyl; m = 2, 4), and the corresponding mono- and bis-nuclear ruthenium(II) complexes have been synthesized and verified. The spectroscopic results indicate that two kinds of π-π* transitions from TPY and oligoaniline fragments of ligands strongly shift to lower energy, and the metal-to-ligand charge-transfer transition (1MLCT) bands of all obtained complexes are considerably red-shifted (Δλmax = 22-64 nm) and their intensities become much more intense (approximately 4-6 times), compared with those of the reported complex [Ru(TPY)2] 2+. Moreover, the spectroscopic properties of the ligands and complexes with longer oligoaniline units (n = 3, 4) are markedly influenced by the external stimulus, such as the oxidation and proton acid doping. The characteristic absorption bands in the visual and near infrared (NIR) scales demonstrate the presence of various oxidized and doped states of the oligoaniline unit. All complexes show multiplicate redox processes based on metal center, oligoaniline and terpyridine units. The potential shifts suggest the donor and acceptor (D-A) interaction between the oligoaniline unit and the bis(terpyridine)-Ru2+ center.
Preparation and properties of poly(methacrylamide)s containing oligoaniline side chains
Chen, Ru,Benicewicz, Brian C.
, p. 6333 - 6339 (2007/10/03)
New poly(methacrylamide)s containing oligoaniline side chains were synthesized and characterized. Oligoanilines were prepared by palladium-catalyzed amination, followed by reaction with methacryloyl chloride to give methacrylamide monomers. Polymers were
