Category: 6825-20-3

The author of 《Side-Chain Polymers as Dopant-Free Hole-Transporting Materials for Perovskite Solar Cells-The Impact of Substituents’ Positions in Carbazole on Device Performance》 were Wu, Jianchang; Liu, Chang; Li, Bo; Gu, Fenglong; Zhang, Luozheng; Hu, Manman; Deng, Xiang; Qiao, Yuan; Mao, Yongyun; Tan, Wenchang; Tian, Yanqing; Xu, Baomin. And the article was published in ACS Applied Materials & Interfaces in 2019. Synthetic Route of C12H7Br2N The author mentioned the following in the article:

Side-chain polymers have the potential to be excellent dopant-free hole-transporting materials (HTMs) for perovskite solar cells (PSCs) because of their unique characteristics, such as tunable energy levels, high charge mobility, good solubility, and excellent film-forming ability. However, there has been less research focusing on side-chain polymers for PSCs. Here, two side-chain polystyrenes with triphenylamine substituents on carbazole moieties were designed and characterized. The properties of the side-chain polymers were tuned finely, including the photophys. and electrochem. properties and charge mobilities, by changing the positions of triphenylamine substituents on carbazole. Owing to the higher mobility and charge extraction ability, the polymer P2 with the triphenylamine substituent on the 3,6-positions of the carbazole unit showed higher performance with power conversion efficiency (PCE) of 18.45%, which was much higher than the PCE (16.78%) of P1 with 2,7-positions substituted. These results clearly demonstrated that side-chain polymers can act as promising HTMs for PSC applications and the performance of side-chain polymers could be optimized by carefully tuning the structure of the monomer, which provides a new strategy to design new kinds of side-chain polymers and obtain high-performance dopant-free HTMs. The experimental part of the paper was very detailed, including the reaction process of 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Synthetic Route of C12H7Br2N)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Synthetic Route of C12H7Br2N

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Design, synthesis and biological activity evaluation of novel carbazole-benzylpiperidine hybrids as potential anti Alzheimer agents》 was published in Journal of Molecular Structure in 2020. These research results belong to Sadeghian, Batool; Sakhteman, Amirhossein; Faghih, Zeinab; Nadri, Hamid; Edraki, Najmeh; Iraji, Aida; Sadeghian, Issa; Rezaei, Zahra. SDS of cas: 6825-20-3 The article mentions the following:

In this study a series of novel carbazole-benzylpiperidine hybrids was designed, synthesized and evaluated as acetylcholinesterase and butyrylcholinesterase inhibitors. Moreover, some of these compounds were evaluated for anti β-secretase (BACE1) activity and metal chelation properties. Among the synthesized compounds, I (n = 2) (IC50 = 16.5μM for AChE and IC50 = 0.59μM for BuChE) and I (n = 3) (IC50 = 26.5μM for AChE and IC50 = 0.18μM for BuChE) showed highest inhibitory activity against acetylcholinesterase and butyrylcholinesterase. Furthermore, these compounds I (n = 2, 3) displayed interaction with Zn2+ ion and compound I (n = 3) showed moderate inhibitory activity against BACE1 (24.5% at 50μM). Kinetic and docking studies exhibited that these compounds likely acts as non-competitive inhibitors, able to interact with the catalytic active site (CAS) and peripheral anionic site (PAS) of acetylcholinesterase simultaneously. The experimental process involved the reaction of 3,6-Dibromo-9H-carbazole(cas: 6825-20-3SDS of cas: 6825-20-3)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent. And it has been used in the preparation of N-(2-hydroxyethyl)-3,6-dibromocarbazole.SDS of cas: 6825-20-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

SDS of cas: 6825-20-3In 2020 ,《Dual-Function Fluorescent Covalent Organic Frameworks: HCl Sensing and Photocatalytic H2 Evolution from Water》 appeared in Advanced Optical Materials. The author of the article were EL-Mahdy, Ahmed F. M.; Elewa, Ahmed M.; Huang, Sheng-Wen; Chou, Ho-Hsiu; Kuo, Shiao-Wei. The article conveys some information:

Two ultrastable luminescent covalent organic frameworks (COFs), PyTA-BC and PyTA-BC-Ph, are synthesized through polycondensations of 4,4′,4”,4”’-pyrene-1,3,6,8-tetrayltetraaniline (PyTA-4NH2) with two carbazole-based derivatives having different degrees of conjugation. The PyTA-BC and PyTA-BC-Ph COFs exhibit ultrahigh thermal stabilities (up to 421°C), excellent crystallinity, and high Brunauer-Emmett-Teller surface areas (up to 1445 m2 g-1). These COFs display strong fluorescence emissions in various solvents, with their emission maxima gradually red-shifting upon increasing the polarity of the solvent (solvatochromism). Upon exposure to HCl, they respond very rapidly and sensitively in terms of changing their colors and fluorescence emission maxima. In the presence of a sacrificial electron donor, these COFs mediate the highly efficient photocatalytic evolution of H2 from water. In the absence of a noble metal cocatalyst, the COFs and ascorbic acid provide a photocatalytic H2 production of up to 1183μmol g-1 h-1 (λ ≥ 420 nm); this value is the highest reported to date for a COF. Such COFs appear to be potentially useful as chemosensors for the naked-eye and sensitive spectroscopic detection of HCl and as cocatalysts for the sustainable photocatalytic production of H2 from water.3,6-Dibromo-9H-carbazole(cas: 6825-20-3SDS of cas: 6825-20-3) was used in this study.

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used in the preparation of N-(2-hydroxyethyl)-3,6-dibromocarbazole.SDS of cas: 6825-20-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Gharpure, Santosh J.; Hande, Pankaj E.; Pandey, Surya K.; Samala, Ganesh published their research in Journal of Organic Chemistry in 2021. The article was titled 《TMSOTf-mediated formal [4 + 2] cycloaddition-retro-aza-Michael cascade of vinylogous carbamates for the synthesis of highly fluorescent pyridocarbazoles》.Recommanded Product: 3,6-Dibromo-9H-carbazole The article contains the following contents:

Trimethylsilyl trifluoromethanesulfonate (TMSOTf) mediated dimerization reaction of vinylogous carbamates of carbazoles gave highly fluorescent pyridocarbazoles through Povarov-type formal [4 + 2] cycloaddition-retro-aza-Michael cascade. The developed strategy was used to access indolo pyridocarbazole and quinolizinocarbazolone in an expeditious manner. Various coupling reactions were successfully performed on synthesized pyridocarbazoles to study the effect of electronics of substitution on photophys. properties. Synthesized carbazoles possess excellent photophys. properties with high quantum yields (ΦF). Fluorescent carbazole dicarboxylic acid showed potential as pH probe giving linear response to pH over a very wide range (7.0-3.0) reflecting high efficiency. In the experiment, the researchers used many compounds, for example, 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Recommanded Product: 3,6-Dibromo-9H-carbazole)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Recommanded Product: 3,6-Dibromo-9H-carbazole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Teng, Jin-Ming; Zhang, Da-Wei; Wang, Yin-Feng; Chen, Chuan-Feng published an article in ACS Applied Materials & Interfaces. The title of the article was 《Chiral Conjugated Thermally Activated Delayed Fluorescent Polymers for Highly Efficient Circularly Polarized Polymer Light-Emitting Diodes》.Safety of 3,6-Dibromo-9H-carbazole The author mentioned the following in the article:

Two novel chiral conjugated polymers R-P and S-P designed and synthesized from a pair of circularly polarized thermally activated delayed fluorescence (CP-TADF) enantiomers are presented in this work. The two polymers exhibited excellent TADF properties with small singlet-triplet energy gaps (ΔEST) of 0.045 and 0.061 eV and relatively high photoluminescence quantum yields (PLQYs) of 72 and 76%, resp. Besides, intense mirror-image circularly polarized luminescence signals were detected from R-P and S-P in both solution and film states with dissymmetry factors (|glum|) of up to 1.9 x 10-3. Furthermore, solution-processed circularly polarized polymer light-emitting diodes (CP-PLEDs) fabricated with R-P and S-P achieved high maximum external quantum efficiencies of 14.9 and 15.8% and high maximum brightness (Lmax) of 8940 and 12,180 cd/m2 with yellowish-green emission peaks at 546 and 544 nm, resp. Moreover, intense circularly polarized electroluminescence signals with electroluminescence dissymmetry factors (gEL) of -1.5 x 10-3 and +1.6 x 10-3 were detected from the CP-PLED devices fabricated with R-P and S-P, resp. The results came from multiple reactions, including the reaction of 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Safety of 3,6-Dibromo-9H-carbazole)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Safety of 3,6-Dibromo-9H-carbazole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liu, Yan; Chen, Xiao-Lan; Li, Xiao-Yun; Zhu, Shan-Shan; Li, Shi-Jun; Song, Yan; Qu, Ling-Bo; Yu, Bing published an article in 2021. The article was titled 《4CzIPN-tBu-Catalyzed Proton-Coupled Electron Transfer for Photosynthesis of Phosphorylated N-Heteroaromatics》, and you may find the article in Journal of the American Chemical Society.Quality Control of 3,6-Dibromo-9H-carbazole The information in the text is summarized as follows:

2,4,5,6-Tetrakis(3,6-di-tert-butyl-9H-carbazol-9-yl)isophthalonitrile (4CzIPN-tBu) was developed as a photocatalyst for the phosphorus-radical-initiated cascade cyclization reaction of isocyanides. By using 4CzIPN-tBu as catalyst, we developed a visible-light-induced proton-coupled electron transfer strategy for the generation of phosphorus-centered radicals, via which a wide range of phosphorylated phenanthridines, quinolines, and benzothiazoles were successfully constructed. The experimental process involved the reaction of 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Quality Control of 3,6-Dibromo-9H-carbazole)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Quality Control of 3,6-Dibromo-9H-carbazole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Hou, Chao-Ping; Chen, Xin-Lun; Huang, Zhi-Jian; Lei, Yang; Xiao, Li-Min; Huang, Jian-Feng; Li, Shao-Yong; Liu, Jun-Min published an article in 2021. The article was titled 《Robust Heterogeneous Photocatalyst for Visible-Light-Driven Hydrogen Evolution Promotion: Immobilization of a Fluorescein Dye-Encapsulated Metal-Organic Cage on TiO2》, and you may find the article in ACS Applied Materials & Interfaces.SDS of cas: 6825-20-3 The information in the text is summarized as follows:

The design of artificial photocatalytic devices that simulates the ingenious and efficient photosynthetic systems in nature is promising. Herein, a metal-organic cage [Pd6(NPyCzPF)12]12+ (MOC-PC6) integrating 12 organic ligands NPyCzBP and 6 Pd2+ catalytic centers is designed, which is well defined to include organic dye fluorescein (FL) for constructing a supramol. photochem. mol. device (SPMD) FL@MOC-PC6. Photoinduced electron transfer (PET) between MOC-PC6 and the encapsulated FL has been observed by steady-state and time-resolved emission spectroscopy. FL@MOC-PC6 is successfully heterogenized with TiO2 by a facile sol-gel method to achieve a robust heterogeneous FL@MOC-PC6-TiO2. The close proximity between the Pd2+ catalytic site and FL included in the cage enables PET from the photoexcited FL to Pd2+ sites through a powerful intramol. pathway. The photocatalytic hydrogen production assessments of the optimized 4 wt % FL@MOC-PC6-TiO2 demonstrate an initial H2 production rate of 2402 μmol g-1 h-1 and a turnover number of 4356 within 40 h, enhanced by 15-fold over that of a homogeneous FL@MOC-PC6. The effect of the MOC content on photocatalytic H2 evolution (PHE) is investigated and the inefficient comparison systems, such as MOC-PC6, MOC-PC6-TiO2, FL-sensitized MOC-PC6/FL-TiO2, and analog FL/MOC-PC6-TiO2 with free FL, are evaluated. This study provides a creative and distinctive approach for the design and preparation of novel heterogeneous SPMD catalysts based on MOCs. In the experiment, the researchers used many compounds, for example, 3,6-Dibromo-9H-carbazole(cas: 6825-20-3SDS of cas: 6825-20-3)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.SDS of cas: 6825-20-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Blue Light-Promoted N-H Insertion of Carbazoles, Pyrazoles and 1,2,3-Triazoles into Aryldiazoacetates》 was published in Advanced Synthesis & Catalysis in 2020. These research results belong to Stivanin, Mateus L.; Fernandes, Alessandra A. G.; da Silva, Amanda F.; Okada, Celso Y. Jr.; Jurberg, Igor D.. Product Details of 6825-20-3 The article mentions the following:

Blue light irradiation of aryldiazoacetates led to the formation of free carbenes, which reacted with carbazoles, pyrazoles and 1,2,3-triazoles to afford the corresponding N-H inserted products. These reactions were performed under air and at room temperature, allowing the mild preparation of a variety of motifs found in biol. relevant targets. In the part of experimental materials, we found many familiar compounds, such as 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Product Details of 6825-20-3)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Product Details of 6825-20-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《A Green-Emission Metal-Organic Framework-Based Nanoprobe for Imaging Dual Tumor Biomarkers in Living Cells》 was written by Kong, Xiang-Jing; Ji, Xiaoting; He, Tao; Xie, Lin-Hua; Zhang, Yong-Zheng; Lv, Haoyuan; Ding, Caifeng; Li, Jian-Rong. Safety of 3,6-Dibromo-9H-carbazole And the article was included in ACS Applied Materials & Interfaces in 2020. The article conveys some information:

The modular nature of metal-organic frameworks (MOFs) permits their tunable structure and function for target application, such as in biomedicine. Herein, a green-emission Zr(IV)-MOF (BUT-88) was constructed from a customized luminescent carbazolyl ligand. BUT-88 represents the first bcu-type MOF with both organic linker and metal node in eight connections and shows medium-sized pores, rich accessible linking sites, and good water stability and biocompatibility. In virtue of these merits, BUT-88 was then fabricated into a MOF-based fluorescent nanoprobe, drDNA-BUT-88. Using it, the live-cell imaging of dual tumor biomarkers was achieved for the first time upon a MOF-based probe, offering enhanced detection precision in early cancer diagnosis. Particularly, the probe showed efficient ratiometric fluorescent sensing toward the cytoplasmic biomarker microRNA-21, further improving the detection accuracy at the cellular level. The elaborate combination of MOF engineering and the fluorescent detection technique has contributed a facile biosensing platform, unlocking more possibilities of MOF chem. The results came from multiple reactions, including the reaction of 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Safety of 3,6-Dibromo-9H-carbazole)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Safety of 3,6-Dibromo-9H-carbazole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Ahmed, Mostafa; Kotp, Mohammed G.; Mansoure, Tharwat Hassan; Lee, Rong-Ho; Kuo, Shiao-Wei; El-Mahdy, Ahmed F. M. published an article in Microporous and Mesoporous Materials. The title of the article was 《Ultrastable carbazole-tethered conjugated microporous polymers for high-performance energy storage》.Application of 6825-20-3 The author mentioned the following in the article:

Conjugated microporous polymers (CMPs) have considered as organic porous polymers featuring combination of p-conjugated skeletons with permanent micro-porosity. In the present study, we report the synthesis of carbazole-tethered conjugated microporous polymers, BC-Py-CMP and BC-BF-CMP, resp., through the Suzuki-Miyaura coupling polymerization of the novel 3,3′,6,6′-tetraboronic-pinacolate-9,9′-bicarbazole (BC-4Bpin) with 1,3,6,8-tetrabromopyrene (Py-4Br) and 3,3′,6,6′-tetrabromo-9,9′-bifluorenylidene (BF-4Br). These CMPs exhibited extraordinary thermal stabilities (up to ca. 694 and 569 °C) and high surface areas (up to ca. 1030 m2 g-1). Moreover, the as-prepared BC-BF-CMP exhibited a high specific capacitance of 260 F g-1 at 0.5 A g-1 and showed outstanding cycling stability, having 89.60% capacitance retention of its authentic capacitance over 6000 cycles. The excellent electrochem. capacitances of the BC-BF-CMP were presumably due to the 9,9′-BF could easily accept one electron, causing the reduced form acquiring greater aromaticity by meeting Huckel′s requirements, as a result improving the electron transporting properties. Such CMPs tend to have tremendous potential to be used as a high-performance supercapacitors in energy storage systems. In addition to this study using 3,6-Dibromo-9H-carbazole, there are many other studies that have used 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Application of 6825-20-3) was used in this study.

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Application of 6825-20-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary