Author: Jessica.F

Low-cost and efficient hole transport materials based on 9-phenyl-9H-carbazole branch for perovskite solar cells was written by Wu, Yehui;Gong, Zhiming;Jiang, Yue;Wang, Ru;Xu, Dongdong;Xu, Zhengjie;Zhou, Guofu;Liu, Jun-Ming;Gao, Jinwei. And the article was included in Surfaces and Interfaces in 2022.Quality Control of 3-Bromo-9-(4-fluorophenyl)-9H-carbazole The following contents are mentioned in the article:

Hole transport materials (HTMs) play a pivotal role in the hole extraction and transportation processes in perovskite solar cells (PSCs). Although a great number of HTMs based on various planar conjugated cores have been explored, the development of branches is rather limited. In this work, branches of 9-phenyl-9H-carbazole derivatives have been incorporated in different N-alkylated dithieno[3,2-b:2′,3′-d]pyrrol (DTP) core to construct HTMs (TM-9 to TM-14). Among them, TM-13 with 9-(4-methoxyphenyl)-9H-carbazole branch exhibites excellent performance in hole extraction and transportation ability. Consequently, the PSCs based on TM-13 have achieved the power conversion efficiency (PCE) of 20.44%, which is comparable to the PCE of 20.62% with the widely used Spiro-OMeTAD HTM. More importantly, the synthetic cost of TM-13 (62 dollar/g) is much lower than that of Spiro-OMeTAD (400 dollar/g), suggesting its promising commercialization for low-cost and efficient HTMs for PSCs. This study involved multiple reactions and reactants, such as 3-Bromo-9-(4-fluorophenyl)-9H-carbazole (cas: 922721-30-0Quality Control of 3-Bromo-9-(4-fluorophenyl)-9H-carbazole).

3-Bromo-9-(4-fluorophenyl)-9H-carbazole (cas: 922721-30-0) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Quality Control of 3-Bromo-9-(4-fluorophenyl)-9H-carbazole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Detection of okadaic acid by high-performance liquid chromatography in mussels (Perna perna) captured in the Sepetiba Bay was written by Oliveira, G. M.;Silva, P. P. O.;Rosa, C. A. R.;Bastos, R. A.;Ferreira, V. M.;Rodrigues, E. S.. And the article was included in Alimentaria (Madrid, Spain) in 2005.Formula: C18H11BrO The following contents are mentioned in the article:

Okadaic acid (OA) is one of the main toxins responsible for diarrhea from shellfish poisoning (DSP) in humans. The OA was extracted from hepatopancreas of mussels (Perna perna) collected on the Sepetiba and Mangaratiba beaches in Rio de Janeiro (Brazil), derivatized with 1-(bromoacetyl)pyrene, and analyzed by HPLC with fluorescence detection (HPLC-FLD). The retention time of the AO standard was 18.041 min at 11.27 ng/g and 18.318 min at 26.81 ng/g in samples spiked with equivalent of 20 ng OA/g hepatopancreas tissue. The method allowed better evaluation of the presence of AO in non-spiked extracts The OA retention time for the non-spiked extracts was 17.788 min at 26.55 ng/g in samples from the Sepetiba beach and 18.068 min at 10.14 ng/g in samples from the Mangaratiba beach. The detection limit for OA was 8.1 ng/g hepatopancreas tissue at signal:noise ratio of 3:1. The data indicate the presence of OA in the Perna perna mussels from the Sepetiba and Mangaratiba beaches. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Formula: C18H11BrO).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.Formula: C18H11BrO

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chiral Phosphoric Acid-Catalyzed Asymmetric Arylation of Indolizines: Atroposelective Access to Axially Chiral 3-Arylindolizines was written by Song, Xiaoxiao;Fan, Yanjun;Zhu, Zhiming;Ni, Qijian. And the article was included in Organic Letters in 2022.Electric Literature of C11H10BrNO2 The following contents are mentioned in the article:

A highly straightforward strategy for the synthesis of a new axially chiral 3-arylindolizine I (R = Me, Bn, n-Pr, etc.; R¹ = H, 5-Me, 6-Cl, 8-F, etc.; R² = 2-nitrophenyl, ethoxycarbonyl, (benzyloxy)carbonyl, etc.) and Et 3-[3,6-dihydroxy-2-(methoxycarbonyl)phenyl]indolizine-2-carboxylate scaffold via organocatalytic asym. arylation reactions of indolizinecarboxylates and p-quinone esters and Me 3,6-dioxocyclohexa-1,4-diene-1-carboxylate was reported. Using the chiral phosphoric acid catalyst, a series of axially chiral 3-arylindolizines I was accessed in good to excellent yields and atropo-enantioselectivities. This approach features a broad substrate scope, mild reaction conditions, good scalability, and facile derivatization. Moreover, preliminary investigations based on nonlinear effects and a thermal racemization study demonstrated the intrinsic pathway for the formation of axial chirality and its potential utility. This study involved multiple reactions and reactants, such as Ethyl 6-bromoindolizine-2-carboxylate (cas: 1251014-35-3Electric Literature of C11H10BrNO2).

Ethyl 6-bromoindolizine-2-carboxylate (cas: 1251014-35-3) belongs to organobromine compounds. Most of the natural organobromine compounds are produced by marine organisms, and several brominated metabolites with antibacterial, antitumor, antiviral, and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.Electric Literature of C11H10BrNO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Rebuilding ring-type assembly of peroxiredoxin by chemical modification was written by Himiyama, Tomoki;Tsuchiya, Yuko;Yonezawa, Yasushige;Nakamura, Tsutomu. And the article was included in Bioconjugate Chemistry in 2021.Category: bromides-buliding-blocks The following contents are mentioned in the article:

Direct control of the protein quaternary structure (QS) is challenging owing to the complexity of the protein structure. As a protein with a characteristic QS, peroxiredoxin from Aeropyrum pernix K1 (ApPrx) forms a decamer, wherein five dimers associate to form a ring. Here, we disrupted and reconstituted ApPrx QS via amino acid mutations and chem. modifications targeting hot spots for protein assembly. The decameric QS of an ApPrx* mutant, wherein all cysteine residues in wild-type ApPrx were mutated to serine, was destructed to dimers via an F80C mutation. The dimeric ApPrx*F80C mutant was then modified with a small mol. and successfully assembled as a decamer. Structural anal. confirmed that an artificially installed chem. moiety potentially facilitates suitable protein-protein interactions to rebuild a native structure. Rebuilding of dodecamer was also achieved through an addnl. amino acid mutation. This study describes a facile method to regulate the protein assembly state. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Category: bromides-buliding-blocks).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthesis of non-peripherally and peripherally substituted zinc (II) phthalocyanines bearing pyrene groups via different routes and their photophysical properties was written by Surgun, Serdar;Arslanoglu, Yasin;Hamuryudan, Esin. And the article was included in Dyes and Pigments in 2014.Safety of 2-Bromo-1-(pyren-1-yl)ethanone The following contents are mentioned in the article:

This work reports on photophys. properties of the non-peripherally and peripherally substituted Zn phthalocyanines (Pcs) prepared by two different synthetic routes. Tetra-substituted non-peripheral and peripheral Zn phthalocyanines containing 4-mercaptophenol groups were synthesized from novel phthalonitrile derivatives for the 1st time. Pyrene-containing phthalocyanine derivatives were obtained by the reaction of these compounds with 1-bromoacetylpyrene. In the 2nd route, the pyrene-containing phthalocyanine derivatives were prepared by cyclotetramerization of pyrene-containing phthalonitrile derivatives The synthesized compounds were characterized by elemental anal., FTIR, UV-visible, NMR spectroscopy and mass spectra. General trends were described for electronic absorption, fluorescence quantum yields, lifetimes, and fluorescence quenching by benzoquinone of these compounds The effects of position of substituent on photophys. properties of the tetra-substituted Zn Pcs were also studied. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Safety of 2-Bromo-1-(pyren-1-yl)ethanone).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. Safety of 2-Bromo-1-(pyren-1-yl)ethanone

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthesis, SAR, and Series Evolution of Novel Oxadiazole-Containing 5-Lipoxygenase Activating Protein Inhibitors: Discovery of 2-[4-(3-{(R)-1-[4-(2-Amino-pyrimidin-5-yl)-phenyl]-1-cyclopropyl-ethyl}-[1,2,4]oxadiazol-5-yl)-pyrazol-1-yl]-N,N-dimethyl-acetamide (BI 665915) was written by Takahashi, Hidenori;Riether, Doris;Bartolozzi, Alessandra;Bosanac, Todd;Berger, Valentina;Binetti, Ralph;Broadwater, John;Chen, Zhidong;Crux, Rebecca;De Lombaert, Stephane;Dave, Rajvee;Dines, Jonathon A.;Fadra-Khan, Tazmeen;Flegg, Adam;Garrigou, Michael;Hao, Ming-Hong;Huber, John;Hutzler, J. Matthew;Kerr, Steven;Kotey, Adrian;Liu, Weimin;Lo, Ho Yin;Loke, Pui Leng;Mahaney, Paige E.;Morwick, Tina M.;Napier, Spencer;Olague, Alan;Pack, Edward;Padyana, Anil K.;Thomson, David S.;Tye, Heather;Wu, Lifen;Zindell, Renee M.;Abeywardane, Asitha;Simpson, Thomas. And the article was included in Journal of Medicinal Chemistry in 2015.Synthetic Route of C8H9BrN2O The following contents are mentioned in the article:

The synthesis, structure-activity relationship (SAR), and evolution of a novel series of oxadiazole-containing 5-lipoxygenase-activating protein (FLAP) inhibitors are described. The use of structure-guided drug design techniques provided compounds that demonstrated excellent FLAP binding potency (IC₅₀ < 10 nM) and potent inhibition of LTB₄ synthesis in human whole blood (IC₅₀ < 100 nM). Optimization of binding and functional potencies, as well as physicochem. properties resulted in the identification of compound 69 (I, BI 665915) that demonstrated an excellent cross-species drug metabolism and pharmacokinetics (DMPK) profile and was predicted to have low human clearance. In addition, 69 was predicted to have a low risk for potential drug-drug interactions due to its cytochrome P 450 3A4 profile. In a murine ex vivo whole blood study, 69 demonstrated a linear dose-exposure relationship and a dose-dependent inhibition of LTB₄ production This study involved multiple reactions and reactants, such as 2-(4-Bromophenyl)-N-hydroxyacetimidamide (cas: 422560-40-5Synthetic Route of C8H9BrN2O).

2-(4-Bromophenyl)-N-hydroxyacetimidamide (cas: 422560-40-5) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Synthetic Route of C8H9BrN2O

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

1-Acetylpyrene-Salicylic Acid: Photoresponsive Fluorescent Organic Nanoparticles for the Regulated Release of a Natural Antimicrobial Compound, Salicylic Acid was written by Barman, Shrabani;Mukhopadhyay, Sourav K.;Behara, Krishna Kalyani;Dey, Satyahari;Singh, N. D. Pradeep. And the article was included in ACS Applied Materials & Interfaces in 2014.Synthetic Route of C18H11BrO The following contents are mentioned in the article:

Photoresponsive 1-acetylpyrene-salicylic acid (AcPy-SA) nanoparticles (NPs) were developed for the regulated release of a natural antimicrobial compound, salicylic acid. The strong fluorescent properties of AcPy-SA NPs have been extensively used for potential in vitro cell imaging. The phototrigger capability of our newly prepared AcPy-SA NPs was utilized for the efficient release of an antimicrobial compound, salicylic acid. The photoregulated drug release of AcPy-SA NPs has been shown by the subsequent switching off and on of a visible-light source. In vitro biol. studies reveal that AcPy-SA NPs of ∼68 nm size deliver the antimicrobial drug salicylic acid into the bacteria cells (Pseudomonas aeruginosa) and efficiently kill the cells upon exposure to visible light (≥410 nm). Such photoresponsive fluorescent organic NPs will be highly beneficial for targeted and regulated antimicrobial drug release because of their biocompatible nature, efficient cellular uptake, and light-induced drug release ability. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Synthetic Route of C18H11BrO).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Most of the natural organobromine compounds are produced by marine organisms, and several brominated metabolites with antibacterial, antitumor, antiviral, and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Synthetic Route of C18H11BrO

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Quantification of lipopeptides using high-performance liquid chromatography with fluorescence detection after derivation was written by Meng, Yong;Liu, Jin-Feng;Yang, Shi-Zhong;Ye, Ru-Qiang;Mu, Bo-Zhong. And the article was included in Analytical Sciences in 2015.Recommanded Product: 2-Bromo-1-(pyren-1-yl)ethanone The following contents are mentioned in the article:

A highly sensitive and selective high-performance liquid chromatog. (HPLC) method has been developed for the determination of microbial lipopeptides of fluorescent derivatization with 1-bromoacetylpyrene to overcome the limitations of trace detection of lipopeptides in aqueous solutions The derivatization of lipopeptides with 1-bromoacetylpyrene was conducted at 60°C for 20 min under catalysis of triethylarnine. The resulting derivative products were separated by HPLC and determined by a fluorescence detector. Each homolog of lipopeptides in samples was identified by HPLC-MS and the detection limit after derivatization in an aqueous solution was 2.5 μg/mL (S/N = 3), The calibration curve for lipopeptides was linear in the concentration range of 0.250 – 4.00 mg/mL. This method has adequate sensitivity and selectivity for microdetection of lipopeptides in aqueous solutions in mild reaction conditions, which allows this method to be used in the determination of trace lipopeptides in environmental samples and complex samples. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Recommanded Product: 2-Bromo-1-(pyren-1-yl)ethanone).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Recommanded Product: 2-Bromo-1-(pyren-1-yl)ethanone

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Improvement on sample clean-up for high-performance liquid chromatographic-fluorimetric determination of diarrhetic shellfish toxins using 1-bromoacetylpyrene was written by Gonzalez, Jose C.;Vieytes, Mercedes R.;Vieites, Juan M.;Botana, Luis M.. And the article was included in Journal of Chromatography A in 1998.Electric Literature of C18H11BrO The following contents are mentioned in the article:

Okadaic acid (OA) and dinophysistoxin-2, two of the main diarrhetic shellfish toxins, can be determined by high-performance liquid chromatog. coupled to fluorimetry as pyrenacyl esters. Toxin fluorescent derivatives were obtained after quant. derivatization with 1-bromoacetylpyrene in acetonitrile. An efficient improvement in the silica gel clean-up procedure of the pyrenacyl derivatives is reported. The clean-up cartridge is washed with hexane-dichloromethane (1:1, volume/volume), dichloromethane-Et acetate (8:2, volume/volume), and finally the pyrenacyl esters were eluted with dichloromethane-methanol (9:1, volume/volume). The authors compare this procedure with other methods already described. Good results were obtained with mussels, scallops and clams. The clean-up procedure showed good robustness when checked against silica and solvents activity. Using samples of mussel hepatopancreas with an OA concentration ranging from 0 to 2 μg OA/g hepatopancreas, the inter-assay relative standard deviation ranged from 5.5 to 12.6. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Electric Literature of C18H11BrO).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Electric Literature of C18H11BrO

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Site-Selective N-Arylation of Carbazoles with Halogenated Fluorobenzenes was written by Wang, Lei;Ji, Enhui;Liu, Ning;Dai, Bin. And the article was included in Synthesis in 2016.Synthetic Route of C18H11BrFN The following contents are mentioned in the article:

A method for the highly site-selective C-N bond-formation reaction of halogenated fluorobenzenes with carbazoles was described. The selectivity of iodine and fluorine atoms on the aromatic ring of fluorinated iodobenzenes was initially determined with a copper-N,N-diisopropylethylamine catalytic system. By changing the position of the iodine atom on the aromatic ring from the 3- or 4-position to the 2-position, the preferred coupling site was switched from the iodine atom to the fluorine atom. Steric hindrance of the fluorinated iodobenzenes was responsible for the selectivity switch. After elucidating the reaction mechanisms of these reaction processes, a metal-free method for the highly site-selective C-N bond-formation reaction of halogenated fluorobenzenes with carbazoles was revealed through C-F bond activation. The metal-free system was able to handle a range of halogenated groups. Thus, a broad range of chlorinated, brominated, and iodinated N-arylated carbazoles were generated, which are widely useful in organic chem. This study involved multiple reactions and reactants, such as 3-Bromo-9-(4-fluorophenyl)-9H-carbazole (cas: 922721-30-0Synthetic Route of C18H11BrFN).

3-Bromo-9-(4-fluorophenyl)-9H-carbazole (cas: 922721-30-0) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Synthetic Route of C18H11BrFN

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary