19264-71-2

Upstream product

• 637-87-6 1-Chloro-4-iodobenzene 
• 86-74-8 9H-carbazole 
• 106-39-8 bromochlorobenzene 
• 98-80-6 phenylboronic acid 
• 609-73-4 o-nitroiodobenzene 
• 86-00-0 2-nitrobiphenyl 
• 90-41-5 2-phenylaniline 
• 388-82-9 2,2'-difluorobiphenyl 
• 106-47-8 4-chloro-aniline 
• 2113-51-1 2-iodobiphenyl 
• 2052-07-5 2-Bromobiphenyl 
• 3296-05-7 1-azido-4-chlorobenzene 
• 4688-76-0 2-Biphenylboronic acid 
• 615-43-0 2-iodophenylamine 

Downstream Products

• 419536-33-7 4-(carbazol-9-yl)phenylboronic acid 
• 912573-26-3 3,6-dibromo-9-(4-chlorophenyl)-9H-carbazole 
• 912573-25-2 3,6-bis(trimethylsilylethynyl)-9-(p-chlorophenyl)carbazole 
• 912573-23-0 9-(p-chlorophenyl)-3,6-diethynylcarbazole 

Relevant academic research and scientific papers

Molecular Engineering through Control of Structural Deformation for Highly Efficient Ultralong Organic Phosphorescence

It is an enormous challenge to achieve highly efficient organic room-temperature phosphorescence (RTP) with a long lifetime. We demonstrate that, by bridging the carbazole and halogenated phenyl ring with a methylene linker, RTP phosphors CzBX (X=Cl, Br) present high phosphorescence efficiency (ΦPh). A ΦPh up to 38 % was obtained for CzBBr with a lifetime of 220 ms, which is much higher than that of compounds CzPX (X=Cl, Br) with a C?N bond as a linker (ΦPh3 methylene linkers restrain the nonradiative decay channel, leading to the high phosphorescence efficiency in CzBBr. This research paves a new road toward highly efficient and long-lived RTP materials with potential applications in anti-counterfeiting or data encryption.

Transition-metal free synthesis of: N -aryl carbazoles and their extended analogs

Herein, we describe a facile synthesis of N-arylated carbazoles via ladderization of fluorinated oligophenylenes. The reaction consists of two subsequent nucleophilic substitutions triggered by an electronic transfer from dimsyl anions. The reaction allows the effective one-pot formation of at least six C-N bonds with pronounced selectivity to the C-F bond placement.

Preparation method of 4-(9H-carbazol-9-yl)phenylboronic acid

The invention relates to a preparation method of 4-(9H-carbazol-9-yl)phenylboronic acid, belonging to the technical field of organic synthesis. The preparation method comprises the following steps: with carbazole as an initial raw material, subjecting carbazole to reacting with 4-chlorobromobenzene to generate 9-(4-chlorphenyl)-9H-carbazole; and then condensing 9-(4-chlorphenyl)-9H-carbazole with triethyl borate, and carrying out hydrolyzing to generate the 4-(9H-carbazol-9-yl)phenylboronic acid. According to the method, n-butyllithium is not used in the process of preparing the 4-(9H-carbazol-9-yl)phenylboronic acid, so an ultralow-temperature reaction is avoided, and all the reactions are carried out under mild conditions; and compared with an existing synthesis process, the method is more suitable for industrial production.

COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, COMPOSITION FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE

The present invention relates to a compound for an organic optoelectronic device, represented by Chemical Formula 1; a composition for an organic optoelectronic device, including same; an organic optoelectronic device; and a display device. The description of Chemical Formula 1 is the same as that defined in the specification.

Novel compound and organic light emitting device comprising the same

The present invention provides a novel compound and an organic light emitting device using the same. The present invention provides a compound represented by chemical formula 1. The compound represented by chemical formula 1 can be used as a material for an organic layer of the organic light emitting device, and can improve efficiency, lower driving voltage, and/or improve lifespan characteristics in the organic light emitting device.

Method for synthesizing carbazole derivative

The invention aims to provide a method for synthesizing a carbazole derivative. The method is characterized in that palladium chloride is used as a catalyst, 2, 2' - dibromobiphenyl is used as an electrophilic reagent, primary amine is taken as a nucleophile, and the carbazole derivative is directly cross-coupled under the conditions of toluene as a solvent and an air atmosphere. The method has the advantages of high yield, high selectivity, simplicity and convenience in operation and the like.

Scope, Kinetics, and Mechanism of “On Water” Cu Catalysis in the C–N Cross-Coupling Reactions of Indole Derivatives

A simple and cost-effective protocol for the C–N cross coupling of indole derivatives with aryl iodides using CuI/phenanthroline catalytic system in aqueous and DME/H2O solvent mixture is described. The reactions were performed in the absence of phase-transfer catalyst, and afforded N-arylated products in moderate to excellent yields under mild reaction conditions. A systematic tuning of reaction conditions using DME as a co-solvent enables to improve product yields of N-arylation reactions. The broad substrate scope, easy performance, and low loading of catalyst as well as ligand render this approach appropriate for large scale processes. The mechanism of “on water” Cu-catalyzed N-arylation reaction is investigated using kinetic and computational studies, which reveal interesting mechanistic aspects of the reaction. A series of kinetic experiments showed significant rate enhancement for “on water” Cu-catalyzed N-arylation over the reaction performed in the organic solvent (DME). Computational studies corroborated “on water” rate acceleration by delineating the role of water in the reaction. The water induces rate acceleration by stabilizing the transition state of oxidative addition through hydrogen bonding interactions, presumably at the oil-water interface, and thus helps to reduce the free energy of activation of oxidative addition of iodobenzene to the Cu complex, which is identified as the rate-limiting step of reaction.

Palladium-catalyzed C-H bond activation for the assembly of: N -aryl carbazoles with aromatic amines as nitrogen sources

A convenient and efficient palladium-catalyzed C-H bond activation for the assembly of N-aryl carbazole is reported, in which two C-N bonds were formed under one set of conditions. The desired carbazoles were achieved in decent yields with a wide substrate scope by utilizing readily available 2-iodo biphenyls and aromatic amines as starting materials.

ORGANIC COMPOSITION, ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE」

A composition including a first compound represented by a combination of Chemical Formula 1 and Chemical Formula 2 and a second compound represented by Chemical Formula 3, an organic optoelectronic device, and a display device are disclosed. In Chemical Formula 1 to Chemical Formula 3, each substituent is the same as described in the specification.

A waste-minimized protocol for copper-catalyzed Ullmann-type reaction in a biomass derived furfuryl alcohol/water azeotrope

We report the use of biomass-derived furfuryl alcohol as an effective bidentate ligand able to promote the Ullmann-type copper-catalyzed coupling of aryl halides with heteroaromatic or aliphatic amines. Furfuryl alcohol (FA) can be mixed with water to form the corresponding azeotrope (20 wt% of FA) and therefore can be easily recovered and reused. This protocol is efficiently applied to substrates with various electronic nature and affords the expected products (27 examples) in generally good to excellent yields. It has also been demonstrated that the protocol is both chemically and environmentally effective as the azeotropic mixture can be easily and almost quantitatively recovered at the end of the process.