73084-03-4Relevant academic research and scientific papers
Trizaine-based dehydrative condensation reagents bearing carbon-substituents
Kitamura, Masanori,Komine, Sayaka,Kunishima, Munetaka,Yamada, Kohei
, (2020/02/22)
Herein, we report on the synthesis of alkyl-, aryl-, and alkynyl-substituted chlorotriazines and their ammonium salts, and demonstrate their utility in dehydrative condensation reactions. Although the electrophilicity of these reagents is mainly dependent on the hybridization of the carbon-substituents, it was found that bulky 2,6-dimethylphenyl group-substituted reagents resulted in the highest product yields because of a slight increase in reagent electrophilicity and/or steric hindrance favorable for desired dehydrative condensation reactions.
METAL COMPLEXES CONTAINING HETEROCYCLE SUBSTITUTED LIGANDS, AND ELECTROLUMINESCENT DEVICES AND FORMULATIONS CONTAINING THE COMPLEXES
-
Paragraph 0125; 0126, (2019/07/10)
Metal complexes having heterocycle substituted ligands are disclosed, which can be used as emitters in the emissive layer of an organic electroluminescent device. The application of these novel compounds as emitters in phosphorescent OLED devices enables to obtain deep red and near infrared colors. Also disclosed are an electroluminescent device and a formulation containing the complexes.
Development of triazine-based benzylating reagents possessing T-butyl group on the triazine core: Thermally controllable reagents for the initiation of reaction
Karuo, Yukiko,Yamada, Kohei,Kunishima, Munetaka
, p. 303 - 308 (2018/03/09)
Benzylating reagents, 4-(4,6-di-t-butyl-1,3,5-triazin-2-yl)-4-benzylmorpholinium triflate, and related derivatives have been developed. The reagents release benzyl triflate as a benzyl cation equivalent upon heating the solution to 40°C under neutral conditions. The O-benzylation of alcohols using a stoichiometric amount of these reagents afforded corresponding benzyl ethers in good to high yields. This was due to the presence of a bulky t-butyl group on the triazine ring of these reagents that prevents the consumption of benzyl triflate via a side reaction with a morpholinotriazine derivative.
DEHYDRATION CONDENSATION AGENT
-
Paragraph 0198; 0200; 0201; 0211-0213, (2018/09/02)
PROBLEM TO BE SOLVED: To provide a novel compound useful as a condensation agent when producing a carboxylic acid derivative, such as ester and amide, by a dehydration condensation reaction, and a dehydration condensation agent comprising the compound. SOLUTION: The present invention provides a triazine quaternary ammonium compound represented by formula (I) and a dehydration condensation agent comprising the compound [R1 is C1-4 alkyl group; R2 and R3 independently represent a substituted/unsubstituted alkyl group, a substituted/unsubstituted secondary cyclic amino group formed with a nitrogen atom bonded thereto, or the like; X1 is a substituted/unsubstituted alkoxy group or a substituted/unsubstituted aryloxy group; X2 is a substituted/unsubstituted alkyl group, a substituted/unsubstituted cycloalkyl group, or the like; Y-is a counter anion with no nucleophilicity or with low nucleophilicity]. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT
Triazine compound
-
Paragraph 0173-0176, (2016/12/01)
PROBLEM TO BE SOLVED: To provide a novel triazine compound useful as an agent for arylmethylating a nucleophilic compound. SOLUTION: This invention relates to a compound represented by formula (I) [where each symbol is as defined in the specification], an
NOVEL IRIDIUM COMPLEX, ORGANIC LIGHT-EMITTING DEVICE, AND IMAGE DISPLAY APPARATUS
-
Page/Page column 20; 38; 39; 40, (2011/06/26)
There is provided a novel iridium complex having a small half-width of an emission spectrum and an organic light-emitting device that contains the iridium complex. There is provided a novel iridium complex that has a phenyl ring and a pyrazole ring as lig
NOVEL IRIDIUM COMPLEX, ORGANIC LIGHT-EMITTING DEVICE, AND IMAGE DISPLAY APPARATUS
-
Page/Page column 44; 46-47, (2011/06/26)
There is provided a novel iridium complex having a small half-width of an emission spectrum and an organic light-emitting device that contains the iridium complex. There is provided a novel iridium complex that has a phenyl ring and an imidazole ring as l
NOVEL IRIDIUM COMPLEX AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
-
Page/Page column 30, (2011/06/26)
A novel iridium complex includes a ligand including a phenyl ring and a pyrazole ring. The phenyl group is bonded to a triazine ring to form a backbone of the novel iridium complex. An organic light-emitting device includes the novel iridium complex.
The AZARYPHOS family of ligands for ambifunctional catalysis: Syntheses and use in ruthenium-catalyzed anti-markovnikov hydration of terminal alkynes
Hintermann, Lukas,Dang, Tuan Thanh,Labonne, Aurelie.,Kribber, Thomas,Xiao, Li,Naumov, Pance
supporting information; experimental part, p. 7167 - 7179 (2010/02/28)
The family of AZARYPHOS (aza-aryl-phosphane) phosphane ligands, containing a phosphine unit and sterically shielded nitrogen lone pairs in the ligand periphery, is introduced as a tool for developing ambifunctional catalysis by the metal center and nitrogen lone pairs in the ligand sphere. General synthetic strategies have been developed to synthesize over 25 examples of structurally diverse (6-aryl-2pyridyl)phosphanes (ARPYPHOS), (6alkyl-2-pyridyl)phosphanes (ALPY-PHOS), 4,6-disubsituted l,3-diazin-2ylphosphanes or l,3,5-triazin-2- ylphosphanes, quinazolinylphosphanes, quinolinylphosphanes, and others. The scalable syntheses proceed in a few steps. The incorporation of AZARYPHOS ligands (L) into complexes [RuCp(L)2(MeCN)][PF6] (Cp = cyclopentadieny1)gives catalysts for the anti-Markovnikov hydration of terminal alkynes of the highest known activities. Electronic and steric ligand effects modulate the reaction kinetics over a range of two orders of magnitude. These results highlight the importance of using structurally diverse ligand families in the process of developing cooperative ambifunctional catalysis by a metal and its ligand.
A general and selective copper-catalyzed cross-coupling of tertiary grignard reagents with azacyclic electrophiles
Hintermann, Lukas,Xiao, Li,Labonne, Aurelie
supporting information; experimental part, p. 8246 - 8250 (2009/04/13)
(Chemical Equation Presented) Bulky heterocycles: A highly selective catalytic cross-coupling reaction of tertiary Grignard reagents with chloroazacycles provides a shortcut to heterocyclic building blocks for applications in pharmaceutical chemistry and supramolecular chemistry, or as ligand precursors in transition-metal catalysis (see scheme).
