Tag: 200-300

《Introduction of heterocyclic ring to phenanthroimidazole moiety for efficient blue emitting ionic small molecule LECs》 was written by John, Jino C.; Shanmugasundaram, Kanagaraj; Puthanveedu, Archana; Rao, C. V. S. Brahmmananda; Gopakumar, Gopinadhanpillai; Choe, Youngson. Computed Properties of C6H12Br2 And the article was included in Organic Electronics in 2020. The article conveys some information:

Two novel phenanthroimidazole based luminogens were designed and synthesized through simple synthetic procedures. Two different hetero atoms containing (S, O) rings were introduced into the phenanthroimidazole moiety to obtain the efficient blue emitting luminogens. The optical, thermal, electronic, electrochem. and electroluminescence properties of both the derivatives have been thoroughly characterized. Both the synthesized compounds showed good thermal stability which is necessary for the LEC fabricating material. The photoluminescence quantum yields are good for both the compounds The theor. calculations done for electronic structure predictions are in good agreement with the exptl. studies done by cyclic voltammetry. Moreover, the LEC devices fabricated show strong blue emission in 459 and 461 nm for devices 1 and 2 resp. The CIE graph show good intensity for the devices 1 and 2 at (0.18,0.22) and (0.19,0.19) resp. These CIE coordinates fall in the strong and intense blue emission region. Comparing the brightness, the compound 2 shows better brightness of 1289 than that of compound 1 of 1177 cd m-2. The c.d. is also higher for the compound 2 which shows 342, when the compound 1 shows a c.d. of 166 mA cm-2. Both the compounds show very good external quantum efficiency too. In addition to this study using 1,6-Dibromohexane, there are many other studies that have used 1,6-Dibromohexane(cas: 629-03-8Computed Properties of C6H12Br2) was used in this study.

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of solvent processable and conductive polyfluorene ionomers for alkaline fuel cell applications; synthesis of cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) for stabilizing the film morphology in polymer photovoltaic cells.Computed Properties of C6H12Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Development of a practical non-noble metal catalyst for hydrogenation of N-heteroarenes》 was written by Papa, Veronica; Cao, Yixuan; Spannenberg, Anke; Junge, Kathrin; Beller, Matthias. Category: bromides-buliding-blocks And the article was included in Nature Catalysis in 2020. The article conveys some information:

The chemoselective reduction of quinolines and related N-heterocycles by mol. hydrogen, using a simple Mn(I) complex [Mn(CO)5Br] was reported. Under very mild reaction conditions this catalytic system was able to reduce a wide range of quinolines, affording high yields of the corresponding tetrahydroquinolines, a scaffold present in many bioactive compounds, including marketed pharmaceuticals. Mechanistic studies revealed the formation of the active catalyst and also show the important role of a concomitantly formed Mn(II) species and HBr for the hydrogenation of the heterocyclic substrates. The results came from multiple reactions, including the reaction of Bromopentacarbonylmanganese(I)(cas: 14516-54-2Category: bromides-buliding-blocks)

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.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Copper and L-(-)-quebrachitol catalyzed hydroxylation and amination of aryl halides under air》 was written by Liang, Xinjie; Li, Hui; Du, Fangyu; Zhang, Yongsheng; Dong, Jinhua; Bao, Xuefei; Wu, Ying; Chen, Guoliang. Formula: C7H5BrO2 And the article was included in Tetrahedron Letters in 2020. The article conveys some information:

L-(-)-Quebrachitol, a natural product obtained from waste water of the rubber industry, was utilized as an efficient ligand for the copper-catalyzed hydroxylation and amination of aryl halides to selectively give phenols and aryl amines in water or 95% ethanol. In addition, the hydroxylation of 2-chloro-4-hydroxybenzoic acid was validated on a 100-g scale under air. In the experimental materials used by the author, we found 4-Bromobenzoic acid(cas: 586-76-5Formula: C7H5BrO2)

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.Formula: C7H5BrO2 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

《N -Methylated 1,8-Diaminonaphthalenes as Bifunctional Nucleophiles in Reactions with α,ω-Dihalogenoalkanes: A Facile Route to Heterocyclic and Double Proton Sponges》 was published in Synthesis in 2020. These research results belong to Kolupaeva, Ekaterina V.; Ozeryanskii, Valery A.; Pozharskii, Alexander F.. SDS of cas: 623-24-5 The article mentions the following:

The reaction of 1-dimethylamino-8-(methylamino)naphthalene with 1,3-dibromopropane chemoselectively leaded to the product of N, N’-heterocyclization, while in the case of 1,4-dibromobutane and 1,2-bis(bromomethyl)benzene the process resulted in heterocyclization onto the same nitrogen atom with the formation of previously unknown 1-dimethylamino-8-pyrrolidino- and 1-dimethylamino-8-isoindolino-naphthalenes. The same reactions conducted without adding any auxiliary base leaded to the formation of N, N’-linked double proton sponges as a new type of polynitrogen organic receptor. Proceeding as a sequence of quaternization-demethylation-cyclization steps, this heterocyclization process was used to construct six-membered rings (piperidino, morpholino), albeit in lower yields. The ability of 1,2-dibromoethane to brominate N-alkylated 1,8-diaminonaphthalenes was described. It is shown for the first time that a com. available 1,8-bis(dimethylamino)naphthalene (DMAN) can be used as a starting material in a heterocyclization reaction, which via a one-pot approach and in a short time can be converted into 1,5-dimethylnaphtho[1,8- bc]-1,5-diazacyclooctane or 1-dimethylamino-8-(pyrrolidin-1-yl)naphthalene. In the experiment, the researchers used many compounds, for example, 1,4-Bis(bromomethyl)benzene(cas: 623-24-5SDS of cas: 623-24-5)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Organobromine chemicals are produced naturally by an array of biological and other chemical processes in our environment. Organobromine compounds are produced naturally by marine creatures (sponges, corals, sea slugs, tunicates, sea fans) and seaweed, plants, fungi, lichen, algae, bacteria, microbes, and some mammals. SDS of cas: 623-24-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Manganese Diphosphine and Phosphinoamine Complexes Are Effective Catalysts for the Production of Biofuel Alcohols via the Guerbet Reaction》 was published in Organometallics in 2020. These research results belong to King, Ashley M.; Sparkes, Hazel A.; Wingad, Richard L.; Wass, Duncan F.. SDS of cas: 14516-54-2 The article mentions the following:

We report a variety of manganese-based catalysts containing both chelating diphosphine (bis(diphenylphosphino)methane (dppm: 1, 2, and 7) or 1,2-bis(diphenylphosphino)ethane (dppe: 3)), and mixed-donor phosphinoamine (2-(diphenylphosphino)ethylamine (dppea: 4-6)) ligands for the upgrading of ethanol and methanol to the advanced biofuel isobutanol. These catalysts show moderate selectivity up to 74% along with turnover numbers greater than 100 over 90 h, with catalyst 2 supported by dppm demonstrating superior performance. The pos. effect of substituting the ligand backbone was also displayed with a catalyst supported by C-phenyl-substituted dppm (8) having markedly improved performance compared to the parent dppm catalysts. Catalysts supported by the phosphinoamine ligand dppea are also active for the upgrading of ethanol to n-butanol. These results show that so-called PNP-pincer ligands are not a prerequisite for the use of manganese catalysts in Guerbet chem. and that simple chelates can be used effectively. In addition to this study using Bromopentacarbonylmanganese(I), there are many other studies that have used Bromopentacarbonylmanganese(I)(cas: 14516-54-2SDS of cas: 14516-54-2) 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.SDS of cas: 14516-54-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《A Ru(II)-Mn(I) Supramolecular Photocatalyst for CO2 Reduction》 was published in Organometallics in 2020. These research results belong to Fabry, David C.; Koizumi, Hiroki; Ghosh, Debashis; Yamazaki, Yasuomi; Takeda, Hiroyuki; Tamaki, Yusuke; Ishitani, Osamu. Computed Properties of C5BrMnO5 The article mentions the following:

Supramol. photocatalysts for CO2 reduction, constituted of redox photosensitizer, catalyst, and bridging ligand, play crucial roles in constructing hybrid systems with solid materials and photoelectrochem. cells for artificial photosynthesis. The authors report the 1st supramol. photocatalysts with a Mn(I) catalyst [MnBr(CO)3(BL)] and photosensitizer unit(s) [Ru(dmb)2(BL)]2+ (dmb = 4,4′-dimethyl-2,2′-bipyridine, BL = bridging ligand). A 1:1 ratio between the redox photosensitizer and catalyst units showed higher activity for HCOOH formation in comparison to the corresponding mixed system of mononuclear complexes. The experimental part of the paper was very detailed, including the reaction process of Bromopentacarbonylmanganese(I)(cas: 14516-54-2Computed Properties of C5BrMnO5)

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.Computed Properties of C5BrMnO5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Design and synthesis of parthenolide-SAHA hybrids for intervention of drug-resistant acute myeloid leukemia》 were Ge, Weizhi; Liu, Zhongquan; Sun, Yu; Wang, Tianpeng; Guo, Hongyu; Chen, Xinyi; Li, Shengzu; Wang, Mengmeng; Chen, Yue; Ding, Yahui; Zhang, Quan. And the article was published in Bioorganic Chemistry in 2019. Product Details of 17696-11-6 The author mentioned the following in the article:

A series of parthenolide-SAHA hybrids were synthesized and evaluated for their anti-AML activities against HL-60 and HL-60/ADR cell lines. The most active compound 26 exhibited high activity against HL-60/ADR cell line with IC50 value of 0.15 μM, which demonstrated 16.8-fold improvement compared to that of the parent compound PTL (IC50 = 2.52 μM). Moreover, it was six times more potent than the reference drug SAHA (IC50 = 0.90 μM) and fifty-one times more potent than ADR (IC50 = 7.72 μM). The preliminary mol. mechanism of 26 indicated that compound 26 could significantly induce apoptosis of HL-60/ADR cells. The effect of compound 26 was mainly through mitochondria pathway. Further investigation revealed that the protein level of HDAC1 and HDAC6 were reduced after the treatment of compound 26 with a dose-dependent manner. Compound 26 could significantly decrease ABCC1 expression, which increased the accumulation of intracellular drug for overcoming the drug resistance. On the base of these results, compound 26 might be considered as a promising candidate for further evaluation as a potential anti-AML drug. In the experiment, the researchers used 8-Bromooctanoic acid(cas: 17696-11-6Product Details of 17696-11-6)

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.Product Details of 17696-11-6

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Product Details of 623-24-5In 2021 ,《Stable Solid Electrolyte Interphase Formation Induced by Monoquat-Based Anchoring in Lithium Metal Batteries》 was published in ACS Energy Letters. The article was written by Zhou, Tianhong; Zhao, Yan; El Kazzi, Mario; Choi, Jang Wook; Coskun, Ali. The article contains the following contents:

The lithium (Li) metal anode is considered to be a promising candidate for next-generation batteries but is impeded by Li dendrites and the resulting poor reversibility. Here, monoquat salts are introduced with an ability to anchor onto the Li metal surface through pyridine moieties as electrolyte additives. Both the number and the spatial arrangement are systematically varied of anchoring units along with the number of pos. charges bearing PF6 counter anions to probe their impact on Li metal protection. A high surface concentration of PF6 counter anions and their immediate reaction with the deposited Li facilitate the in situ formation and homogeneous distribution of LiF in the surface passivation layer. The results revealed that the monoquat dication, through stable pyridine-based anchoring, formed an ionically conductive and dense solid electrolyte interphase layer and showed superior cycling performance in both ether-based and carbonate-based electrolytes, thus clearly demonstrating the importance of the anchoring strategy for Li metal surface protection. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Product Details of 623-24-5)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Product Details of 623-24-5 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

Recommanded Product: Ethyl 5-bromovalerateIn 2021 ,《””TPG-lite””: A new, simplified “”designer”” surfactant for general use in synthesis under micellar catalysis conditions in recyclable water》 appeared in Tetrahedron. The author of the article were Thakore, Ruchita R.; Takale, Balaram S.; Hu, Yuting; Ramer, Selene; Kostal, Jakub; Gallou, Fabrice; Lipshutz, Bruce H.. The article conveys some information:

Using the oxidized, carboxylic acid-containing form of MPEG-750, esterification with racemic vitamin E affords a new surfactant (TPG-lite) that functions as an enabling, nanoreactor-forming amphiphile for use in many types of important reactions in synthesis. The presence of a single ester bond is suggestive of simplified treatment as a component of (eventual) reaction waste water, after recycling. Many types of reactions, including aminations, Suzuki-Miyaura, SNAr, and several others are compared directly with TPGS-750-M, leading to the conclusion that TPG-lite can function as an equivalent nanomicelle-forming surfactant in water. Prima facie evidence amassed via DLS and cryo-TEM analyses support these exptl. observations. In silico evaluations of the aquatic toxicity and carcinogenicity of TPG-lite indicate that it is safe to use. In the part of experimental materials, we found many familiar compounds, such as Ethyl 5-bromovalerate(cas: 14660-52-7Recommanded Product: Ethyl 5-bromovalerate)

Ethyl 5-bromovalerate(cas: 14660-52-7) belongs to bromides. 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: Ethyl 5-bromovalerate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Product Details of 586-76-5In 2020 ,《A recyclable, metal-free mechanochemical approach for the oxidation of alcohols to carboxylic acids》 appeared in Molecules. The author of the article were Denlinger, Kendra Leahy; Carr, Preston; Waddell, Daniel C.; Mack, James. The article conveys some information:

The oxidation of primary alcs. under mechanochem. conditions in a Spex8000M Mixer/Mill was investigated. To facilitate ease of separation and recyclability, a polystyrene-bound version of a TEMPO catalyst was employed. When paired with Oxone in a stainless-steel vial with a stainless-steel ball, several primary alcs. were successfully oxidized to the corresponding carboxylic acids. The product was isolated using gravity filtration, which also allowed for the polystyrene-bound TEMPO catalyst to be recovered and reused in subsequent oxidation reactions. Furthermore, it was demonstrated that the size and steric hindrance of the primary alc. does not hinder the rate of the reaction. Finally, the aldehyde was selectively obtained from a primary alc. under ball milling conditions by using a combination of non-supported TEMPO with a copper vial and copper ball. In the part of experimental materials, we found many familiar compounds, such as 4-Bromobenzoic acid(cas: 586-76-5Product Details 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. 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.Product Details of 586-76-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary