Tag: 200-300

Related Products of 623-24-5In 2022 ,《Mechanically interlocked pyrene-based photocatalysts》 appeared in Nature Catalysis. The author of the article were Garci, Amine; Weber, Jacob A.; Young, Ryan M.; Kazem-Rostami, Masoud; Ovalle, Marco; Beldjoudi, Yassine; Atilgan, Ahmet; Bae, Youn Jue; Liu, Wenqi; Jones, Leighton O.; Stern, Charlotte L.; Schatz, George C.; Farha, Omar K.; Wasielewski, Michael R.; Fraser Stoddart, J.. The article conveys some information:

Triplet excited-state organic chromophores present countless opportunities for applications in photocatalysis. Here we describe an approach to the engineering of the triplet excited states of aromatic chromophores, which involves incorporating pyrene into pyridinium-containing mech. interlocked mols. (MIMs). The π-extended nature of the pyrenes enforces [π···π] stacking, affording an efficient synthesis of tetrachromophoric octacationic homo[2]catenanes. These MIMs generate triplet populations and efficient intersystem crossing on account of the formation of a mixed charge-transfer/exciplex electronic state and a nanoconfinement effect, which leads to a high level of protection of the triplet state and extends the triplet lifetimes and yields. These compounds display excellent catalytic activity in photo-oxidation, as demonstrated by the aerobic oxidation of a sulfur-mustard simulant. This research highlights the benefits of using the mech. bond to fine-tune the triplet photophysics of existing aromatic chromophores, providing an avenue for the development of unexplored MIM-based photosensitizers and photocatalysts. In the experimental materials used by the author, we found 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Related Products of 623-24-5)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides. Related Products of 623-24-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis and characterization of a semiconducting and solution-processable ruthenium-based polymetallayne》 was published in Polymer Chemistry in 2020. These research results belong to Ho, Po-Yuen; Komber, Hartmut; Horatz, Kilian; Tsuda, Takuya; Mannsfeld, Stefan C. B.; Dmitrieva, Evgenia; Blacque, Olivier; Kraft, Ulrike; Sirringhaus, Henning; Lissel, Franziska. Category: bromides-buliding-blocks The article mentions the following:

Polymetallaynes are a special class of Wolf type-III polymers with high potential in organic electronics, especially in applications such as OFET, OLED and OPV. However, almost all reported polymetallaynes contain group 10 metals, while functional polymetallaynes with earlier transition metals have rarely been reported. Here, different synthetic routes to a group 8 polymetallayne P[Ru(dppe)2-DDBT], containing Ru(II) centers bridged in the trans-position by the organic linker 3,3′-didodecyl-5,5′-diethynyl-2,2′-bithiophene (DDBT), are explored. The polymer is obtained by copper-free dehydrohalogenation, characterized using NMR, IR and UV-vis spectroscopy, MALDI-TOF-MS, GPC and CV. In solution, CV studies show two separated metal-centered redox processes, indicating that the charge between metal centers is delocalized via the bridging ligand and a mixed-valence species exists (Kc = 102). In thin-films, P[Ru(dppe)2-DDBT] exhibits a single oxidation wave with a higher peak current intensity, consistent with a two-electron process and localized charge. Despite a d.p. ∼32 based on NMR and GPC studies, P[Ru(dppe)2-DDBT] is fully solution processable, and thin-films were obtained via spin-coating using different solvents. AFM investigations of the films showed very low surface roughness, and first OFET devices with a top-gate bottom-contact (TGBC) architecture were fabricated to characterize the electronic properties, confirming the semiconducting behavior of the polymetallayne. The experimental part of the paper was very detailed, including the reaction process of 2,5-Dibromothiophene(cas: 3141-27-3Category: bromides-buliding-blocks)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis of Benzyl 2-Deoxy-C-Glycosides》 was published in ACS Omega in 2020. These research results belong to Shinozuka, Tsuyoshi. Application of 1129-28-8 The article mentions the following:

A synthetic method for benzyl 2-deoxy-C-glycosides has been developed. Palladium-catalyzed benzyl C-glycosylation of TIPS-protected 1-tributylstannyl glycals with a variety of benzyl bromides provided protected benzyl C-glycals. In this reaction, the use of PdCl2(dppe) promoted a clean reaction, whereas the reaction was accelerated by the addition of Na2CO3. The subsequent transformations provided a novel class of benzyl 2-deoxy-C-glycosides. The experimental part of the paper was very detailed, including the reaction process 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. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Application of 1129-28-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Deoxygenative Tri- and Difluoromethylthiolation of Carboxylic Acids with Benzothiazolium Reagents》 was published in Organic Letters in 2020. These research results belong to Tironi, Matteo; Maas, Lilian M.; Garg, Arushi; Dix, Stefan; Goetze, Jan P.; Hopkinson, Matthew N.. Computed Properties of C7H5BrO2 The article mentions the following:

Deoxygenative syntheses of fluorinated thioesters directly from carboxylic acids have been developed employing benzothiazolium reagents. The process using BT-SCF3 represents an attractive approach toward these SCF3-containing compounds that avoids the use of metal -SCF3 salts or preactivated acyl electrophiles. Moreover, the in situ activation of BT-SCF2H allows for an unprecedented nucleophilic difluoromethylthiolation reaction. DFT calculations support a mechanistic scenario involving a four-membered transition state where acyl substitution occurs without the formation of an unstable free -SCF2H anion. In the part of experimental materials, we found many familiar compounds, such as 4-Bromobenzoic acid(cas: 586-76-5Computed Properties of 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.Computed Properties of 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

《Benzimidazole fragment containing Mn-complex catalyzed hydrosilylation of ketones and nitriles》 was published in Tetrahedron in 2020. These research results belong to Ganguli, Kasturi; Mandal, Adarsha; Sarkar, Bidisha; Kundu, Sabuj. Safety of Bromopentacarbonylmanganese(I) The article mentions the following:

The synthesis of a new bidentate (NN)-Mn(I) complex is reported and its catalytic activity towards the reduction of ketones and nitriles is studied. On comparing the reactivity of various other Mn(I) complexes supported by benzimidazole ligand, it was observed that the Mn(I) complexes bearing 6-methylpyridine and benzimidazole fragments exhibited the highest catalytic activity towards monohydrosilylation of ketones and dihydrosilylation of nitriles. Using this protocol, a wide range of ketones were selectively reduced to the corresponding silyl ethers. In case of unsaturated ketones, the chemoselective reduction of carbonyl group over olefinic bonds was observed Addnl., selective dihydrosilylation of several nitriles were also achieved using this complex. Mechanistic investigations with radical scavengers suggested the involvement of radical species during the catalytic reaction. Stoichiometric reaction of the Mn(I) complex with phenylsilane revealed the formation of a new Mn(I) complex. In the experiment, the researchers used many compounds, for example, Bromopentacarbonylmanganese(I)(cas: 14516-54-2Safety of Bromopentacarbonylmanganese(I))

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.Safety of Bromopentacarbonylmanganese(I)

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Bi-continuous orthorhombic soft matter phase made of polycatenar molecules》 was published in Soft Matter in 2020. These research results belong to Matraszek, Joanna; Pociecha, Damian; Vaupotic, Natasa; Salamonczyk, Miroslaw; Vogrin, Martin; Gorecka, Ewa. Synthetic Route of C4H2Br2S The article mentions the following:

We report an observation of a new type of a continuous soft matter phase with an orthorhombic symmetry made of polycatenar mols. The bi-continuous orthorhombic structure with the Pcab symmetry appears by deformation of a double gyroid cubic structure with the Ia3̅d symmetry. After reading the article, we found that the author used 2,5-Dibromothiophene(cas: 3141-27-3Synthetic Route of C4H2Br2S)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.Synthetic Route of C4H2Br2S

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis of a novel fluorescent berberine derivative convenient for its subcellular localization study》 was published in Bioorganic Chemistry in 2020. These research results belong to Jin, Meng; Ji, Xiuna; Stoika, Rostyslav; Liu, Kechun; Wang, Lizhen; Song, Yang. Synthetic Route of C6H12Br2 The article mentions the following:

Berberine is a naturally occurred isoquinoline alkaloid that shows great potential for developing anticancer drugs. However, the problem stays of poor understanding of the mechanisms of anticancer action of berberine. It depends on evaluation of berberine’s pharmacokinetics, namely monitoring of its uptake and distribution in cells, tissues and organs. In order to address these problems, we have designed and synthesized a novel berberine derivative BBR-BODIPY bearing a fluorescent tag that allows screening its interaction with the targeted cells. It was shown that the synthesized fluorescent derivative could penetrate into human breast carcinoma MCF7 cells, and then induced apoptosis detected by the Western Blot anal. as changed expression of apoptosis-related proteins, including Bax, Bcl2, and Cyto C released from mitochondria, Cleaved Caspase 9, Cleaved PARP, Pro-Caspase 3, and Cleaved Caspase 3. The results of MitoTracker anal. followed by the confocal microscopy of sub-cellular localization of BBR-BODIPY in the MCF7 cells demonstrated excellent cell-penetrating ability of this compound even at low concentrations, and mitochondria was the main site of its accumulation. Together with the results of Western Blot anal., these data indicated that the mitochondria pathway might be involved in berberine-induced apoptosis. In the experiment, the researchers used many compounds, for example, 1,6-Dibromohexane(cas: 629-03-8Synthetic Route of C6H12Br2)

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 pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Synthetic Route of C6H12Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Selectively Oxidative C(sp2)-H/C(sp3)-H Cross-Coupling of Benzamides with Amides by Nickel Catalysis》 was published in Organic Letters in 2020. These research results belong to Lv, Ningning; Yu, Shuling; Hong, Chao; Han, De-Man; Zhang, Yuhong. Quality Control of 3-Bromo-2-methylbenzoic acid The article mentions the following:

The oxidative cross-coupling between the α-C(sp3)-H bond of amide in DMAc and the inert ortho-C(sp2)-H bond of benzamides is achieved for the first time by nickel catalysis, with the assistance of 8-aminoquinolyl group in the presence of a silver oxidant. Notably, the selectivity of conversion can be perfectly controlled by modulating the oxidant additives, and the products from the coupling of the C(sp3)-H bond adjacent to nitrogen of amides with benzamides are approached through the use of peroxide. After reading the article, we found that the author used 3-Bromo-2-methylbenzoic acid(cas: 76006-33-2Quality Control of 3-Bromo-2-methylbenzoic acid)

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. The most pervasive is the naturally produced bromomethane.Quality Control of 3-Bromo-2-methylbenzoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Generation of organozinc reagents from arylsulfonium salts using a nickel catalyst and zinc dust》 was published in Organic Letters in 2020. These research results belong to Yamada, Kodai; Yanagi, Tomoyuki; Yorimitsu, Hideki. Product Details of 2635-13-4 The article mentions the following:

Readily available aryldimethylsulfonium triflates react with zinc powder under nickel catalysis via the selective cleavage of the sp2-hybridized carbon-sulfur bond to produce salt-free arylzinc triflates under mild conditions. This zincation displays superb chemoselectivity and thus represents a protocol that is complementary or orthogonal to existing methods. The generated arylzinc reagents show both high reactivity and chemoselectivity in palladium-catalyzed and copper-mediated cross-coupling reactions.5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Product Details of 2635-13-4) was used in this study.

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.Product Details of 2635-13-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Ru-catalyzed isomerization of ω-alkenylboronates towards stereoselective synthesis of vinylboronates with subsequent in situ functionalization》 was published in Chemical Science in 2020. These research results belong to Ho, Guo-Ming; Segura, Lucas; Marek, Ilan. Electric Literature of C7H5BrO2 The article mentions the following:

The stereoselective preparation of synthetically versatile vinylboronates from ω-alkenylboronates was achieved through a ruthenium-catalyzed isomerization reaction. A variety of di- and trisubstituted vinylboronates were conveniently produced and could be used as a new starting point for subsequent in situ remote functionalization through either a sequential Ru/Pd or Ru/Cu double catalytic system. In the experimental materials used by the author, we found 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Electric Literature 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.Electric Literature of C7H5BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary