Author: Jessica.F

《Synthesis of Alkyl Triphenylphosphonium Ostruthin Derivatives as Potential Cytotoxic Candidates》 was published in ChemistrySelect in 2020. These research results belong to Dang, Phu H.; Dao, Thien H. X.; Le, Vien T.; Nguyen, Chien M.; Ly, Tin T.; Nguyen, Hai X.; Le, Tho H.; Do, Truong N. V.; Nguyen, Mai T. T.; Sun, Sijia; Awale, Suresh; Nguyen, Nhan T.. Application In Synthesis of 4-Bromobutanoic acid The article mentions the following:

Ostruthin, isolated from Paramignya trimera, was used as a scaffold to design its alkyl triphenylphosphonium derivatives With the optimal reaction conditions in hand, five alkyl triphenylphosphonium ostruthin derivatives I [n = 3, 4, 5, etc.] were synthesized. Ostruthin and its derivatives I were tested for cytotoxicity against human PANC-1 pancreatic, HeLa cervical, and HepG2 liver cancer cell lines. Ostruthin and its hexyl and heptyl triphenylphosphonium derivatives I [n = 6, 7] showed strong preferential cytotoxicity against PANC-1 cells with the PC50 values of 10.3 and 14.4μM, resp. In addition, compounds I [n = 6, 7] also exhibited potent cytotoxicity towards HeLa cells with the IC50 values of 24.8 and 18.5μM, resp. The hexyl triphenylphosphonium group in I [n = 6] was found to slightly enhance cytotoxicity against HepG2 cells. Further, the morphol. changes and the live-cell imaging result suggested the anticancer potential against HeLa cells of the synthesized ostruthin derivative I [n = 7]. In addition to this study using 4-Bromobutanoic acid, there are many other studies that have used 4-Bromobutanoic acid(cas: 2623-87-2Application In Synthesis of 4-Bromobutanoic acid) was used in this study.

4-Bromobutanoic acid(cas: 2623-87-2) belongs to carboxylic acids. The chief chemical characteristic of the carboxylic acids is their acidity. They are generally more acidic than other organic compounds containing hydroxyl groups but are generally weaker than the familiar mineral acids (e.g., hydrochloric acid, HCl, sulfuric acid, H2SO4, etc.).Application In Synthesis of 4-Bromobutanoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Photocatalytic α-Alkylation of Amines with Alkyl Halides》 was published in ACS Catalysis in 2020. These research results belong to Leng, Lingying; Ready, Joseph M.. Application of 1129-28-8 The article mentions the following:

α-Branched amines represent essential building blocks for organic synthesis. They are traditionally prepared through nucleophilic addition to imines. These methods often require highly reactive organometallic reagents and proceed under rigorous air- and moisture-free conditions. Here, an alternative approach that involves a C-alkylation of amines with alkyl bromides is described. Mechanistically, the reaction likely involves photocatalytic generation of an α-amino radical and a stabilized carbon-centered radical (allyl, benzyl, α-carbonyl) followed by radical recombination. This approach offers a mild, atom-economical, redox neutral synthesis of α-branched amines that shows broad scope and avoids premetalated reagents. The results came from multiple reactions, including the reaction of Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8Application of 1129-28-8)

Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Application of 1129-28-8 Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Manganese Catalyzed α-Olefination of Nitriles with Secondary Alcohols》 was published in ACS Catalysis in 2020. These research results belong to Yadav, Vinita; Landge, Vinod G.; Subaramanian, Murugan; Balaraman, Ekambaram. COA of Formula: C5BrMnO5 The article mentions the following:

An expedient catalytic approach for α-olefination of nitriles using secondary alcs. with the liberation of mol. hydrogen and water as the only byproducts is reported. This reaction is catalyzed by a molecularly defined manganese(I) pincer complex and operates in the absence of any hydrogen acceptors. A broad range of substrates including cyclic, acy-clic, and benzylic alcs. as well as various nitrile derivatives such as arylmethyl and hetroarylmethyl nitriles are employed in the reaction to provide diverse range of α-vinyl nitriles in good to excellent yields. Mechanistic studies showed that the reaction proceeds via dehydrogenative pathway and the activation of α(C-H) bond of the alc. is the rate determining step. Kinetic experiments clearly indicate the first order rate kinetics for alcs. as well as nitriles.Bromopentacarbonylmanganese(I)(cas: 14516-54-2COA of Formula: C5BrMnO5) was used in this study.

Bromopentacarbonylmanganese(I)(cas: 14516-54-2) has many other uses. It is used in the formation of (eta6-arene)tricarbonylmanganese(I) by reacting with arene (arene= hexamethyl benzene, 1,2,4,5-tetramethyl benzene, mesitylene, p-xylene and toluene) in the presence silver salt.COA of Formula: C5BrMnO5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Rh-Catalyzed Annulation of Benzoic Acids, Formaldehyde, and Malonates via ortho-Hydroarylation to Indanones》 was published in Organic Letters in 2020. These research results belong to Yu, Shuling; Lv, Ningning; Hong, Chao; Liu, Zhanxiang; Zhang, Yuhong. Product Details of 76006-33-2 The article mentions the following:

A three-component reaction from readily available low-cost materials of benzoic acids, formaldehyde, and malonates for the preparation of indanones by rhodium catalysis is reported. The annulation is initiated by an ortho-hydroarylation of benzoic acids, and a Lewis acid is not required. The solvent has a significant influence to the reaction, and 2-substituted or nonsubstituted indanones are obtained by the change of solvent. In addition to this study using 3-Bromo-2-methylbenzoic acid, there are many other studies that have used 3-Bromo-2-methylbenzoic acid(cas: 76006-33-2Product Details of 76006-33-2) was used in this study.

3-Bromo-2-methylbenzoic acid(cas: 76006-33-2) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals.Product Details of 76006-33-2 The most pervasive is the naturally produced bromomethane.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Directing-Group-Controlled Ring-Opening Addition and Hydroarylation of Oxa/azabenzonorbornadienes with Arenes via C-H Activation》 was published in Organic Letters in 2020. These research results belong to Zhang, Keyang; Khan, Ruhima; Chen, Jingchao; Zhang, Xuexin; Gao, Yang; Zhou, Yongyun; Li, Kangkui; Tian, Youxian; Fan, Baomin. Related Products of 586-76-5 The article mentions the following:

An efficient method for the directing group controlled rhodium-catalyzed addition reaction of oxa/azabicylic alkenes with aromatic ketones and benzoic acids has been developed. The ketones and benzoic acids afforded different addition products when reacted with oxa/azabicyclic alkenes. The reaction between ketones and azabenzonorbornadienes furnished the ring-opening addition products. The reaction between benzoic acids and aza/oxabicyclic alkenes proceeded in the absence of silver salt, giving the 1:2 hydroarylation products in yields up to 96%. In the experiment, the researchers used 4-Bromobenzoic acid(cas: 586-76-5Related Products of 586-76-5)

4-Bromobenzoic acid(cas: 586-76-5) has been used to study the metabolic fate of 2-,3-and 4-bromo benzoic acids in rat hepatocytes incubation using high temperature liquid chromatography.Related Products of 586-76-5 It was used in bromine-specific detection of the metabolites of 2-,3-and 4-bromobenzoic acid in the urine and bile of rats by inductively coupled plasma mass spectrometry.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Enhancement of photoluminescence quantum yield and stability in CsPbBr3 perovskite quantum dots by trivalent doping》 was written by Jung, Sujeong; Kim, Jae Ho; Choi, Jin Woo; Kang, Jae-Wook; Jin, Sung-Ho; Kang, Youngho; Song, Myungkwan. Computed Properties of Br3In And the article was included in Nanomaterials in 2020. The article conveys some information:

We determine the influence of substitutional defects on perovskite quantum dots through exptl. and theor. investigations. Substitutional defects were introduced by trivalent dopants (In, Sb, and Bi) in CsPbBr3 by ligand-assisted reprecipitation We show that the photoluminescence (PL) emission peak shifts toward shorter wavelengths when doping concentrations are increased. Trivalent metal-doped CsPbBr3 enhanced the PL quantum yield (~10%) and air stability (over 10 days). Our findings provide new insights into the influence of substitutional defects on substituted CsPbBr3 that underpin their phys. properties. After reading the article, we found that the author used Indium(III) bromide(cas: 13465-09-3Computed Properties of Br3In)

Indium(III) bromide(cas: 13465-09-3) is used in organic synthesis as a water tolerant Lewis acid. It efficiently catalyzes the three-component coupling of β-keto esters, aldehydes and urea (or thiourea) to afford the corresponding dihydropyrimidinones.Computed Properties of Br3In

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Structure-Function Studies on IMD-0354 Identifies Highly Active Colistin Adjuvants》 was written by Nemeth, Ansley M.; Basak, Akash K.; Weig, Alexander W.; Marrujo, Santiana A.; Barker, William T.; Jania, Leigh A.; Hendricks, Tyler A.; Sullivan, Ashley E.; O’Connor, Patrick M.; Melander, Roberta J.; Koller, Beverly H.; Melander, Christian. Quality Control of 3,5-Dibromoaniline And the article was included in ChemMedChem in 2020. The article conveys some information:

Infections caused by multidrug-resistant (MDR) bacteria, particularly Gram-neg. bacteria, are an escalating global health threat. Often clinicians are forced to administer the last-resort antibiotic colistin; however, colistin resistance is becoming increasingly prevalent, giving rise to the potential for a situation in which there are no treatment options for MDR Gram-neg. infections. The development of adjuvants that circumvent bacterial resistance mechanisms is a promising orthogonal approach to the development of new antibiotics. We recently disclosed that the known IKK-β inhibitor IMD-0354 potently suppresses colistin resistance in several Gram-neg. strains. In this study, we explore the structure-activity relationship (SAR) between the IMD-0354 scaffold and colistin resistance suppression, and identify several compounds with more potent activity than the parent against highly colistin-resistant strains of Acinetobacter baumannii and Klebsiella pneumoniae. In the experimental materials used by the author, we found 3,5-Dibromoaniline(cas: 626-40-4Quality Control of 3,5-Dibromoaniline)

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.Quality Control of 3,5-Dibromoaniline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis and evaluation of aromatic methoxime derivatives against five postharvest phytopathogenic fungi of fruits. Main structure-activity relationships》 was written by Cortes, Ivan; di Liberto, Melina G.; Kaufman, Teodoro S.; Derita, Marcos G.; Bracca, Andrea B. J.. Safety of 8-Bromooctanoic acid And the article was included in Food Chemistry in 2020. The article conveys some information:

The antifungal activity of a library of twenty-four aromatic methoximes was examined against five representative postharvest phytopathogenic fungi. The panel included Penicillium digitatum, Penicillium italicum, Rhizopus stolonifer, Botrytis cinerea and Monilinia fructicola, all of which cause relevant economic losses worldwide as a result of affecting harvested fruits. The min. inhibitory concentrations and min. fungicidal concentrations of each compound were defined and the main structure-activity relationships were determined Although other congeners were more potent, drug likeliness considerations pointed to the methoxime derived from 2,4-dihydroxypropiophenone as the compound with the most suitable profile. The morphol. of the colonies of the fungal strains treated with the methoxime was examined microscopically and the compound was also tested in freshly harvested peaches and oranges, exhibiting promising control profiles in both fruits, similar to those of the com. agents Imazalil and Carbendazim. The experimental part of the paper was very detailed, including the reaction process of 8-Bromooctanoic acid(cas: 17696-11-6Safety of 8-Bromooctanoic acid)

8-Bromooctanoic acid(cas: 17696-11-6) acid is used in the synthesis of 8-(N-Methyl-4,4′-bipyridinyl)- octanoic acid. 8-Mercaptooctanoic acid was prepared from 8-bromooctanoic acid. And 8-Bromooctanoic Acid is a useful compound for sonodynamic therapy.Safety of 8-Bromooctanoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Effect of Aryl Ligand Identity on Catalytic Performance of Trineopentylphosphine Arylpalladium Complexes in N-Arylation Reactions》 was written by Hu, Huaiyuan; Burlas, Corrie E.; Curley, Sabrina J.; Gruchala, Tomasz; Qu, Fengrui; Shaughnessy, Kevin H.. Computed Properties of C7H5BrO2 And the article was included in Organometallics in 2020. The article conveys some information:

Air-stable [(Np3P)Pd(Ar)Br]2 (Np = neopentyl) and (Np3P)Pd(Ar)(amine)Br complexes (amine = morpholine and isobutylamine) were prepared and tested as precatalysts for the coupling of sterically demanding aryl bromides and aniline derivatives The complexes are more active than the catalyst generated in situ from Pd2(dba)3 and PNp3. Increasing steric demand of the aryl group on Pd correlates with increased catalyst activity. Reactions catalyzed by [(Np3P)Pd(2,6-Me2C6H3)Br]2 occur efficiently at lower temperatures and with similar or higher yields than those using Pd2(dba)3/PNp3. The amine adducts give lower reaction rates and conversion to product than the [(Np3P)Pd(Ar)Br]2 complexes. The lower activity of the amine adducts appears to result from slow base-promoted reductive elimination to generate the catalytically active LPd(0) species. The results came from multiple reactions, including the reaction of 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Computed Properties of C7H5BrO2)

Furthermore, the coupling of 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4) with β-methallyl alcohol was catalyzed by Pd(OAc)2 in combination with P(t-Bu)3.Computed Properties of C7H5BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Cross-linking Effects on Performance Metrics of Phenazine-Based Polymer Cathodes》 was written by Gannett, Cara N.; Peterson, Brian M.; Shen, Luxi; Seok, Jeesoo; Fors, Brett P.; Abruna, Hector D.. Application of 4316-58-9 And the article was included in ChemSusChem in 2020. The article conveys some information:

Developing cathodes that can support high charge-discharge rates would improve the power d. of lithium-ion batteries. Herein, the development of high-power cathodes without sacrificing energy d. is reported. N,N’-diphenylphenazine was identified as a promising charge-storage center by electrochem. studies due to its reversible, fast electron transfer at high potentials. By incorporating the phenazine redox units in a cross-linked network, a high-capacity (223 mA h g-1), high-voltage (3.45 V vs. Li/Li+) cathode material was achieved. Optimized cross-linked materials are able to deliver reversible capacities as high as 220 mA h g-1 at 120 C with minimal degradation over 1000 cycles. The work presented herein highlights the fast ionic transport and rate capabilities of amorphous organic materials and demonstrates their potential as materials with high energy and power d. for next-generation elec. energy-storage technologies. The experimental process involved the reaction of Tris(4-bromophenyl)amine(cas: 4316-58-9Application of 4316-58-9)

In general, Tris(4-bromophenyl)amine(cas: 4316-58-9) is often used in the synthesis of porous luminescent covalent–organic polymers (COPs)Application of 4316-58-9

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary