200262-83-5

Upstream product

• 618-91-7 methyl 3-iodo-benzoate 
• 122-39-4 diphenylamine 
• 4518-10-9 Methyl 3-aminobenzoate 
• 108-86-1 bromobenzene 
• 618-95-1 methyl 3-nitrobenzoate 

Downstream Products

• 1016163-88-4 n-propyl 5-[bis(4-iodophenyl)amino]-2-iodobenzoate 
• 1016163-87-3 methyl 5-[bis(4-bromophenyl)amino]-2-bromobenzoate 
• 14377-15-2 3-(N,N-diphenylamino)benzoic acid 

Relevant academic research and scientific papers

Cyclometalated iridium complex as well as preparation method and application thereof

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a cyclometalated iridium complex, the structural formula of the cyclometalated iridium complex is shown as a formula I, and n is equal to 2 or 3; wherein R is carbazolyl or diphenylamino group, and L^X is an auxiliary ligand containing N and/or O. The invention also provides a preparation method and application of the iridium complex. Six novel cyclometalated iridium complexes with novel structures are obtained by introducing diphenylamine and carbazole units to a 2phenylbenzothiazole cyclometalated ligand, three light-emitting colors are yellow (TM 1-3, [lambda]Em -560 nm), and three light-emitting colors are red (TM 4-6, lambda Em 618-636 nm); therefore, the emission wavelength of the compound is tuned, and the electroluminescent property of the material is improved by improving the hole transport property of the material.

Buchwald–Hartwig Amination of Nitroarenes

The Buchwald–Hartwig amination of nitroarenes was achieved for the first time by using palladium catalysts bearing dialkyl(biaryl)phosphine ligands. These cross-coupling reactions of nitroarenes with diarylamines, arylamines, and alkylamines afforded the corresponding substituted arylamines. A catalytic cycle involving the oxidative addition of the Ar?NO2 bond to palladium(0) followed by nitrite/amine exchange is proposed based on a stoichiometric reaction.

Photochemical Synthesis of Complex Carbazoles: Evaluation of Electronic Effects in Both UV- and Visible-Light Methods in Continuous Flow

An evaluation of both a visible-light- and UV-light-mediated synthesis of carbazoles from various triarylamines with differing electronic properties under continuous-flow conditions has been conducted. In general, triarylamines bearing electron-rich groups tend to produce higher yields than triarylamines possessing electron-withdrawing groups. The incorporation of nitrogen-based heterocycles, as well as halogen-containing arenes in carbazole skeletons, was well tolerated, and often synthetically useful complementarity was observed between the UV-light and visible-light (photoredox) methods.

Synthetic strategies to derivatizable triphenylamines displaying high two-photon absorption

(Chemical Equation Presented) A versatile synthetic strategy to access a set of highly fluorescent π-conjugated triphenylamines bearing a functional linker at various positions on one phenyl ring is described. These compounds were designed for large two-photon absorption (2PA) and in particular for labeling of biomolecules. The monoderivatized trisformylated or trisiodinated intermediates described herein allow introduction of a large variety of electron-withdrawing groups required for large 2PA as well as a panel of chemical functions suitable for coupling to biomolecules. The monoderivatized three-branched compounds and in particular the benzothiazole (TP-3Bz) series show remarkable linear (high extinction coefficients and high quantum yield) and nonlinear (high 2-photon cross sections) optical properties. Interestingly the presence of functional side chains does not disturb the two-photon absorption. Finally, monoderivatized two-branched derivatives also appear to be valuable candidates. Altogether the good optical properties of the new derivatizable π-conjugated TPA combined with their small size and their compatibility with bioconjugation protocols suggest that they represent a new chemical class of labels potentially applicable for the tracking of biomolecules using two-photon scanning microscopy.