1030908-95-2

Upstream product

• 1364318-02-4 N-(3,5-dimethoxyphenyl)diphenylamine 
• 108-86-1 bromobenzene 
• 10272-07-8 3.5-dimethoxyaniline 
• 20469-65-2 1-bromo-3,5-dimethoxybenzene 
• 86-74-8 9H-carbazole 

Relevant academic research and scientific papers

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.

Photochemical Synthesis of Carbazoles Using an [Fe(phen)3](NTf2)2/O2 Catalyst System: Catalysis toward Sustainability

An increasingly sustainable photochemical synthesis of carbazoles was developed using a catalytic system of Fe(phen)3(NTf2)2/O2 under continuous flow conditions and was demonstrated on gram-scale using a numbering-up strategy. Photocyclization of triaryl and diarylamines into the corresponding carbazoles occurs in general in higher yields than with previously developed photocatalysts.

A series of asymmetric squaraine cyanine small molecule and its preparation method and application

The invention discloses a series of asymmetrical squarine micromolecules as well as a preparation method and an application thereof. Donor-receptor-donor type asymmetrical squarine micromolecules are formed by adopting two different electron-rich aromatic units as donors and leading 1,3-squaric acid cells with high electronic affinity into a conjugated system as receptors, so that micromolecule materials with low band gaps are acquired, and the absorption spectrum of the micromolecule materials can cover visual and near-infrared regions by 450-800nm; and meanwhile, the compounds prepared through the preparation method are good in dissolubility and film-forming property, which is very favorable for preparing organic solar cells with good performance.

Novel high performance asymmetrical squaraines for small molecule organic solar cells with a high open circuit voltage of 1.12 v

An asymmetrically substituted squaraine ASQC bearing a 9-carbazyl substituent exhibits an extremely deep HOMO energy level of -5.46 eV and a relatively low bandgap of 1.65 eV, hence renders solution-processed organic solar cells with an impressive Vo

CARBAZOLYL MONOMERS AND POLYMERS

The invention provides compounds of formula I wherein R is H or alkyl; R1, R2, and R4 are independently at each occurrence a C1-C20 aliphatic radical, a C3- C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 and R5 are independently at each occurrence hydrogen, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; and a, b and d are independently 0 or an integer ranging from 1 to 3. The invention further provides polymers derived from compounds of formula I, said polymers may be polyesters, polyethers, polycarbonates, polyestercarbonates, polyetherketones, polyethersulfones, and the like. Compounds and polymers of the invention find use in light emitting devices.

CARBAZOLYL MONOMERS AND POLYMERS

The invention provides compounds of formula I wherein R is H or alkyl; R1, R2, and R4 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 and R5 are independently at each occurrence hydrogen, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; and a, b and d are independently 0 or an integer ranging from 1 to 3. The invention further provides polymers derived from compounds of formula I, said polymers may be polyesters, polyethers, polycarbonates, polyestercarbonates, polyetherketones, polyethersulfones, and the like. Compounds and polymers of the invention find use in light emitting devices.