Category: 1890136-54-5

N-Heterocyclic Carbene-Catalyzed Construction of 1,3,5-Trisubstituted Benzenes from Bromoenals and α-Cyano-β-methylenones was written by Zhang, Chun-Lin;Ye, Song. And the article was included in Organic Letters in 2016.COA of Formula: C24H17Br The following contents are mentioned in the article:

A direct and efficient approach to 1,3,5-trisubstituted benzenes has been developed via N-heterocyclic carbene-catalyzed [2 + 4] annulation of α-bromoenals and α-cyano-β-methylenones. The reaction worked well for both aryl- and alkylenones. This study involved multiple reactions and reactants, such as 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5COA of Formula: C24H17Br).

2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5) 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. 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.COA of Formula: C24H17Br

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Design of Bowl-Shaped N-Hydroxyimide Derivatives as New Organoradical Catalysts for Site-Selective C(sp³)-H Bond Functionalization Reactions was written by Kato, Terumasa;Maruoka, Keiji. And the article was included in Angewandte Chemie, International Edition in 2020.HPLC of Formula: 1890136-54-5 The following contents are mentioned in the article:

A series of new bowl-shaped N-hydroxyimide derivatives was designed and used as selective organoradical catalysts. A number of these bowl-shaped N-hydroxyimide derivatives exhibit excellent site-selectivity in the amination of benzylic C(sp³)-H bonds in aromatic hydrocarbon substrates. This study involved multiple reactions and reactants, such as 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5HPLC of Formula: 1890136-54-5).

2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5) 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. In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.HPLC of Formula: 1890136-54-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

DBU-Mediated Construction of 1,3,5-Trisubstituted Benzenes via Annulation of α,β-Unsaturated Carboxylic Acids and α-Cyano-β-methylenones was written by Zhang, Chun-Lin;Zhang, Zhao-Fei;Xia, Zi-Hao;Han, You-Feng;Ye, Song. And the article was included in Journal of Organic Chemistry in 2018.Quality Control of 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl The following contents are mentioned in the article:

A DBU-mediated synthesis of 1,3,5-trisubstituted benzenes was developed via the [2 + 4] annulation of in situ activated α,β-unsaturated carboxylic acids and α-cyano-β-methylenones. The dual role of DBU as Bronsted base and nucleophilic Lewis base is the key for the success of the reaction. This study involved multiple reactions and reactants, such as 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5Quality Control of 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl).

2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5) 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. 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.Quality Control of 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Efficient violet non-doped organic light-emitting device based on a pyrene derivative with novel molecular structure was written by Wang, Zhi-Qiang;Liu, Chuan-Lin;Zheng, Cai-Jun;Wang, Wei-Zhou;Xu, Chen;Zhu, Mei;Ji, Bao-Ming;Li, Fan;Zhang, Xiao-Hong. And the article was included in Organic Electronics in 2015.Product Details of 1890136-54-5 The following contents are mentioned in the article:

A novel pyrene derivative 1,6-bis[2-(3,5-diphenylphenyl)phenyl]pyrene (DPPP) was successfully designed and synthesized. X-ray anal. shows the pyrene core in this compound is fully protected by the introduced 3,5-diphenylphenyl groups, resulting no π-π stacking between pyrene units, and the dihedral angle between pyrene ring and adjacent benzene ring is as large as 80.1°. This structure character leads to DPPP achieving a violet emission both in solution and as a thin solid film. Furthermore, DPPP exhibits high thermal properties due to its non-coplanar structure and large mol. size. The non-doped electroluminescence device employing DPPP as emitting layer shows a stable and efficient violet emission with a maximum external quantum efficiency of 2.2% and a CIE coordinate of (0.16, 0.04), which is remarkable in reported violet devices. This study involved multiple reactions and reactants, such as 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5Product Details of 1890136-54-5).

2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5) 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.Product Details of 1890136-54-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Efficient non-doped deep-blue electroluminescence devices based on unsymmetrical and highly twisted pyrene derivatives was written by Wang, Zhiqiang;Zheng, Caijun;Fu, Weijun;Xu, Chen;Wu, Jiasheng;Ji, Baoming. And the article was included in New Journal of Chemistry in 2017.Application of 1890136-54-5 The following contents are mentioned in the article:

Two novel pyrene derivatives 1-3,5-diphenylphenyl-6-[2-(3,5-diphenylphenyl)phenyl]pyrene (PyPP) and 1-3,5-diphenylphenyl-6-[2-(9-phenyl-9H-carbazol-3-yl)phenyl]pyrene (PyPC) were successfully synthesized and characterized. Both these compounds exhibit unsym. and highly twisted structures, and show efficient deep-blue emissions and high thermal stabilities. The nondoped electroluminescence devices based on PyPP and PyPC exhibit stable and efficient deep-blue emissions with high color purity. The Commission Internationale de l’Eclairage (CIE) coordinate and maximum external quantum efficiency (EQE) of the device based on PyPP are (0.16, 0.07) and 2.99%, resp. The device based on PyPC achieved a maximum EQE of 3.72% and a CIE coordinate of (0.16, 0.09). This study involved multiple reactions and reactants, such as 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5Application of 1890136-54-5).

2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5) 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. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Application of 1890136-54-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Boron-Nitrogen-Doped Nanographenes: A Synthetic Tale from Borazine Precursors was written by Dosso, Jacopo;Battisti, Tommaso;Ward, Benjamin D.;Demitri, Nicola;Hughes, Colan E.;Williams, P. Andrew;Harris, Kenneth D. M.;Bonifazi, Davide. And the article was included in Chemistry – A European Journal in 2020.Reference of 1890136-54-5 The following contents are mentioned in the article:

In this work, a comprehensive account of the authors’ synthetic efforts to prepare borazino-doped hexabenzocoronenes by using the Friedel-Crafts-type electrophilic aromatic substitution is reported. Hexafluoro-functionalized aryl borazines, bearing an ortho fluoride leaving group on each of the N- and B-aryl rings, was shown to lead to cascade-type electrophilic aromatic substitution events in the stepwise C-C bond formation, giving higher yields of borazinocoronenes than those obtained with borazine precursors bearing fluoride leaving groups at the ortho positions of the B-aryl substituents. By using this pathway, an unprecedented boroxadizine-doped PAH (I) featuring a gulf-type periphery could be isolated, and its structure proven by single-crystal X-ray diffraction anal. Mechanistic studies on the stepwise Friedel-Crafts-type cyclization suggest that the mechanism of the planarization reaction proceeds through extension of the π system. To appraise the doping effect of the boroxadizine unit on the optoelectronic properties of topol.-equivalent mol. graphenes, the all-carbon and pyrylium PAH analogs, all featuring a gulf-type periphery, were also prepared As already shown for the borazino-doped hexabenzocoronene, the replacement of the central benzene ring by its B₃N₂O congener widens the HOMO-LUMO gap and dramatically enhances the fluorescence quantum yield. This study involved multiple reactions and reactants, such as 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5Reference of 1890136-54-5).

2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5) 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). 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.Reference of 1890136-54-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chiral Bidentate Boryl Ligand Enabled Iridium-Catalyzed Asymmetric C(sp²)-H Borylation of Diarylmethylamines was written by Zou, Xiaoliang;Zhao, Haonan;Li, Yinwu;Gao, Qian;Ke, Zhuofeng;Senmiao Xu. And the article was included in Journal of the American Chemical Society in 2019.Application In Synthesis of 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl The following contents are mentioned in the article:

Optically active organoboronic acids and their derivatives are an important family of target compounds in organic chem., catalysis, and medicinal chem. Yet there are rare asym. catalytic examples reported for the synthesis of these compounds via atom and step economic ways. Herein, we report a chelate-directed iridium-catalyzed asym. C(sp²)-H borylation of aromatic C-H bonds directed by free amine groups. The success of these transformations relies on a novel family of chiral bidentate boryl ligands (L). They can be synthesized straightforwardly in three steps starting from readily available (S,S)-1,2-diphenyl-1,2-ethanediamie ((S,S)-DPEN). The Ir-catalyzed C(sp²)-H borylation comprises two parts. The first part is desymmetrization of prochiral diarylmethylamines. In the presence of L3/Ir, a vast array of corresponding borylated products were obtained with high regioselectivity and good to excellent enantioselectivities (26 examples, up to 96% ee). The second part, kinetic resolution of racemic diarylmethylamines, was also conducted. Good selectivity values (up to 68%, 11 examples) were obtained when L8 was used. We also demonstrated the synthetic utility of the current method on gram-scale reaction for several transformations. The C-B bonds of borylated products could be converted to a variety of functionalities including C-O, C-C, C-C, C-Br, and C-P bonds. Finally, we performed DFT calculations of desymmetrization to understand its reaction pathways. This study involved multiple reactions and reactants, such as 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5Application In Synthesis of 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl).

2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. 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.Application In Synthesis of 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary