Category: bromides-buliding-blocks

The author of 《Spermine modified polymeric micelles with pH-sensitive drug release for targeted and enhanced antitumor therapy》 were Chen, Yang; Yang, Cejun; Mao, Juan; Li, Haigang; Ding, Jinsong; Zhou, Wenhu. And the article was published in RSC Advances in 2019. Computed Properties of C5H9BrO2 The author mentioned the following in the article:

Tumor targeting delivery of chemotherapeutic drugs by nanocarriers has been demonstrated to be a promising strategy for cancer therapy with improved therapeutic efficacy. In this work, we reported a novel type of active targeting micelle with pH-responsive drug release by using biodegradable poly(lactide)-poly(2-ethyl-2-oxazoline) di-block copolymers functionalized with spermine (SPM). SPM has been considered as a tumor binding ligand through its specific interaction with the polyamine transport system (PTS), a transmembrane protein overexpressed on various types of cancer cell, while its application in nano-drug delivery systems has rarely been explored. The micelles with spherical shape (~110 nm) could load hydrophobic paclitaxel (PTX) with high capacity, and release the payload much faster at acidic pH (4.5-6.5) than at pH 7.4. This pH-responsive property assisted the rapid escape of drug from the endo/lysosome after internalization as demonstrated by confocal laser scanning microscopy images using coumarin-6 (Cou-6) as a fluorescent probe. With surface SPM modification, the micelles displayed much higher cellular uptake than SPM lacking micelles in various types of cancer cells, demonstrating tumor targeting ability. The uptake mechanism of SPM modified micelles was explored by flow cytometry, which suggested an energy-consuming sag vesicle-mediated endocytosis pathway. As expected, the micelles displayed significantly enhanced anti-cancer activity. This work demonstrates that SPM modified pH-sensitive micelles may be potential drug delivery vehicles for targeting and effective cancer therapy. In the experimental materials used by the author, we found Ethyl 3-bromopropanoate(cas: 539-74-2Computed Properties of C5H9BrO2)

Ethyl 3-bromopropanoate(cas: 539-74-2) 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. Computed Properties of C5H9BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《An imidazole coumarin derivative enhances the antiviral response to spring viremia of carp virus infection in zebrafish》 were Liu, Lei; Hu, Yang; Lu, Jianfei; Wang, Gaoxue. And the article was published in Virus Research in 2019. Electric Literature of C6H12Br2 The author mentioned the following in the article:

As an efficient pathogen resulting in economic impact in aquaculture, spring viremia of carp virus (SVCV) causes devastating disease in cyprinids. Based on the previous study that 7-(6-(2-methyl-imidazole))-coumarin (D5) exhibited anti-SVCV activity in fish cells, we hypothesized that D5 may be useful as a potential therapeutic agent for controlling SVCV infection in vivo. In this study, we verified that D5 inhibited SVCV replication in zebrafish, with reducing 22.5% mortality of SVCV-infected fish. Further data suggested that coumarin D5 was more stable with a prolonged inhibitory half-life in the early stage of virus infection (1-4 days). Consistent with above results, D5 decreased the viral titer in fish body and repressed SVCV glycoprotein gene expression in virus sensitive tissues (kidney and spleen) in the early stage of virus infection. In addition, the results replied that D5 elicited an innate immune response in non-viral infected zebrafish by up-regulating the expression of interferon genes (IFNγ, IFNφ1, IFNφ2 and RIG-1). D5 also enhanced the levels of antioxidant-related gene transcription and enzyme activities in SVCV-infected zebrafish, suggesting that D5 exhibited an antioxidant protection on fish by keeping the balance of redox state. Therefore, D5 is a potential therapeutic agent for the devastating fish rhabdovirus infections. The experimental part of the paper was very detailed, including the reaction process of 1,6-Dibromohexane(cas: 629-03-8Electric Literature 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 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.Electric Literature of C6H12Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Synthesis and structures of bis(iminophosphorano)methanide chelate complexes with zinc and group 13》 were Zhang, Jin; Ge, Sai; Zhao, Jianguo; Ulhaq, Imran; Ferguson, Michael J.; McDonald, Robert; Ma, Guibin; Cavell, Ronald G.. And the article was published in Polyhedron in 2019. Category: bromides-buliding-blocks The author mentioned the following in the article:

The organolithium bis(iminophosphorano)methandiide dimer [Li2C(Ph2P=NSiMe3)2]2 ([Li2-1]2) reacts with 4 equiv of AlCl3 in THF to generate the novel bimetallic Al carbene complex of [Li(THF)4][{C(Ph2P=NSiMe3)2}Al2Cl5] (1). Several new bis(iminophosphorano)methanide chelate-coordinated complexes of [{CH(Ph2P=NSiMe3)2}AlCl2] (2), [{CH(Ph2P=NSiMe3)2}GaBr2] (3), [{CH(Ph2P=NSiMe3)2}InCl2] (4), and [{CH(Ph2P=NSiMe3)2}InBr2] (5) were synthesized in situ while organolithium bis(iminophosphorano)methandiide ([Li2-1]2) reacts with 2 equiv of metal halides AlCl3, GaBr3 InCl3 and InBr3 resp. in THF. Also, an unexpected complex of [{CH2(Ph2P=NSiMe3)2}ZnCl2] (6) is formed as [Li2-1]2 dimer reacted with 2 equiv of ZnCl2 in situ. All six synthesized complexes (1-6) were isolated in the solid state and were structurally characterized by x-ray diffraction. Complexes containing particular carbene to metal or ionic linking interaction bonds (1-4) were selected and further characterized in detail by DFT calculations using Gaussian03 program. The DFT calculation demonstrates the existence of a carbene-Al σ bond in structure 1 and ionic linkage interaction in structures 2-4. In the experiment, the researchers used Indium(III) bromide(cas: 13465-09-3Category: bromides-buliding-blocks)

Indium(III) bromide(cas: 13465-09-3) is used as a catalyst to produce dithioacetals when unactivated alkynes react with thiols and fields such as optics and microelectronics that utilize semiconductor technology have wide uses for indium in high-performing solar cells.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Design and Synthesis of WJ-Phos, and Application in Cu-Catalyzed Enantioselective Boroacylation of 1,1-Disubstituted Allenes》 were Han, Jie; Zhou, Wei; Zhang, Pei-Chao; Wang, Huamin; Zhang, Ronghua; Wu, Hai-Hong; Zhang, Junliang. And the article was published in ACS Catalysis in 2019. Category: bromides-buliding-blocks The author mentioned the following in the article:

The highly enantioselective copper-catalyzed three-component boroacylation of 1,1-disubstituted allenes is reported by using a class of chiral ligands (WJ-Phos), delivering various functionalized organoboron compounds bearing an all-carbon stereocenter in moderate to good yields with high enantioselectivities. WJ-Phos is a ferrocene-derived chiral sulfinamide phosphine ligand and can be easily synthesized in gram-scale from readily available starting materials in short steps. The salient features of this reaction include moderate to good yields, high enantioselectivities, gram-scale synthesis, diverse synthetic transformations, and the development of a new chiral ligand. In the part of experimental materials, we found many familiar compounds, such as Methyltriphenylphosphonium bromide(cas: 1779-49-3Category: bromides-buliding-blocks)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,ChemPlusChem included an article by Taing, Hi; Cassar, Adam Michael; Ocheje, Michael Udunyi; Rondeau-Gagne, Simon; El-Assaad, Tarek H.; Sharabati, Christa A.; Kaafarani, Bilal R.; Eichhorn, S. Holger. Category: bromides-buliding-blocks. The article was titled 《Self-Assembly of Board-Shaped Diketopyrrolopyrrole and Isoindigo Mesogens into Columnar π-π Stacks》. The information in the text is summarized as follows:

Diketopyrrolopyrrole and isoindigo are com. important dyes that have recently found broad application as electron acceptor and light-absorbing groups in organic semiconductors. Their self-assembly into specific supramol. structures to control optoelectronic properties has been hampered by limited options for substitution and their high propensity for crystallization Reported here is a mol. design that directs self-assembly into previously elusive columnar mesophases of π-π stacking cores. Although attachment of bis(trisoctyloxyphenyl)-1,3,5-triazine groups to both ends of diketopyrrolopyrrole-thiophene and isoindigo cores generated mesomorphic dyes of similar overall shapes and dimensions, distinct differences in their mesomorphism and optoelectronic properties were observed In the experiment, the researchers used many compounds, for example, 1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8Category: bromides-buliding-blocks)

1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8) is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.Category: bromides-buliding-blocks1-Bromo-3,4,5-trimethoxybenzene can be used to synthesize N,N′-diarylated indolo[3,2-b]carbazole derivatives, which can find applications in electrophotography.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,ACS Catalysis included an article by Zhu, Kai; Xu, Kai; Fang, Qi; Wang, Yi; Tang, Bencan; Zhang, Fengzhi. SDS of cas: 2623-87-2. The article was titled 《Enantioselective Synthesis of Axially Chiral Biaryls via Cu-Catalyzed Acyloxylation of Cyclic Diaryliodonium Salts》. The information in the text is summarized as follows:

We report here a Cu-catalyzed enantioselective acyloxylation of cyclic diaryliodonium salts. With readily available cyclic diaryliodonium salts and ubiquitous aliphatic or (hetero)aromatic carboxylic acids as the starting materials, various axially chiral acyloxylated 2-iodobiaryls were prepared in excellent yield and with excellent enantioselectivity (mostly 99% yield and 99% ee). D. functional theory calculations were conducted to reveal the stereo- and regioselectivities. This simple reaction protocol can be employed for the late-stage modification of some drug mols. Finally, by diversity-oriented transformations, these acyloxylated 2-iodobiaryl products can be easily transformed into diverse valuable functionalized biaryls that could be used as chiral ligands or functional materials.4-Bromobutanoic acid(cas: 2623-87-2SDS of cas: 2623-87-2) 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.).SDS of cas: 2623-87-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Molecules included an article by Qin, Shu-Qin; Li, Lian-Chun; Song, Jing-Ru; Li, Hai-Yun; Li, Dian-Peng. Recommanded Product: 2969-81-5. The article was titled 《Structurally simple phenanthridine analogues based on nitidine and their antitumor activities》. The information in the text is summarized as follows:

A series of novel structurally simple analogs based on nitidine was designed and synthesized in search of potent anticancer agents. The antitumor activity against human cancer cell lines (HepG2, A549, NCI-H460, and CNE1) was performed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay in vitro. The results showed that some of them had good anticancer activities, especially derivatives with a [(dimethylamino)ethyl]amino side chain in the C-6 position. Planar conjugated compounds 15a, 15b, and 15c, with IC50 values of 1.20 μM, 1.87 μM, and 1.19 μM against CNE1 cells, resp., were more active than nitidine chloride. Compound 15b and compound 15c with IC50 values of 1.19 μM and 1.37 μM against HepG2 cells and A549 cells demonstrated superior activities to nitidine. Besides, compound 5e which had a phenanthridinone core displayed extraordinary cytotoxicity against all test cells, particularly against CNE1 cells with the IC50 value of 1.13 μM.Ethyl 4-bromobutyrate(cas: 2969-81-5Recommanded Product: 2969-81-5) was used in this study.

Ethyl 4-bromobutyrate(cas: 2969-81-5) belongs to bromides. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents.Recommanded Product: 2969-81-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Product Details of 401-55-8On September 24, 2021 ,《The serendipitous effect of KF in Ritter reaction: Photo-induced amino-alkylation of alkenes》 was published in iScience. The article was written by Guan, Yu-Qing; Min, Xiang-Ting; He, Gu-Cheng; Ji, Ding-Wei; Guo, Shi-Yu; Hu, Yan-Cheng; Chen, Qing-An. The article contains the following contents:

The Ritter reaction has been recognized as an elegant strategy to construct the C-N bond. Its key feature is forming the carbocation for nucleophilic attack by nitriles. Herein, authors report a complementary visible-light-induced three-component Ritter reaction of alkenes, nitriles, and α-bromo nitriles/esters, thereby providing mild and rapid access to various γ-amino nitriles/acids. Mechanistic studies indicated that traceless fluoride relay, transforming KF into imidoyl fluoride intermediate, is critical for the efficient reaction switch from atom transfer radical addition (ATRA) to the Ritter reaction. This approach to amino-alkylation of alkenes is chemoselective and operationally simple. In addition to this study using Ethylbromofluoroacetate, there are many other studies that have used Ethylbromofluoroacetate(cas: 401-55-8Product Details of 401-55-8) was used in this study.

Ethylbromofluoroacetate(cas: 401-55-8) is a member of organofluorine compounds. Organofluorine compounds, which have carbon-fluorine bonds, show unique features such as high thermal and chemical stability, high surface activity, no light-absorbing ability, high pharmacological effect, and so on. Owing to their specific characters, they are indispensable chemicals for industry and our daily lives.Product Details of 401-55-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Visible-Light-Promoted Oxidative Amidation of Bromoalkynes with Anilines: An Approach to α-Ketoamides》 was written by Ni, Ke; Meng, Ling-Guo; Wang, Kuai; Wang, Lei. Safety of 3,5-DibromoanilineThis research focused onvisible light oxidative amidation bromoalkyne aniline; ketoamide preparation. The article conveys some information:

A convenient and practical synthetic route to α-ketoamides from bromoalkynes and anilines through phototriggered organic transformations via a C-N cross-coupling and an oxidation of CC was developed. The reaction could be furnished without an external photocatalyst at ambient conditions, and a wide range of α-ketoamides were obtained in good yields. The experimental process involved the reaction of 3,5-Dibromoaniline(cas: 626-40-4Safety of 3,5-Dibromoaniline)

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Primary amines having a tertiary alkyl group (R3CNH2) are difficult to prepare with most methods but are made industrially by the Ritter reaction. In this method a tertiary alcohol reacts with hydrogen cyanide (HCN) in the presence of a concentrated strong acid; a formamide, RNH―CHO, is formed first, which then undergoes hydrolysis.Safety of 3,5-Dibromoaniline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Related Products of 626-40-4In 2021 ,《Micellar Suzuki Cross-Coupling between Thiophene and Aniline in Water and under Air》 was published in Organics. The article was written by Yousif, Dawod; Tombolato, Silvia; Ould Maina, Elmehdi; Po, Riccardo; Biagini, Paolo; Papagni, Antonio; Vaghi, Luca. The article contains the following contents:

The Suzuki-Miyaura cross-coupling reaction plays a fundamental role in modern synthetic organic chem., both in academia and industry. For this reason, scientists continue to search for new, more effective, cheaper and environmentally friendly procedures. Recently, micellar synthetic chem. has been demonstrated to be an excellent strategy for achieving chem. transformations in a more efficient way, thanks to the creation of nanoreactors in aqueous environments using selected surfactants. In particular, the cheap and com. available surfactant Kolliphor EL (a polyethoxylated castor oil derivative) has been used with success to achieve metal-catalyzed transformations in water with high yields and short reaction times, with the advantage of using air-sensitive catalysts without the need for inert atm. In this work, the Kolliphor EL methodol. was applied to the Suzuki cross-coupling reaction between thiophene and aniline, using the highly effective catalyst Pd(dtbpf)Cl2. The cross-coupling products were achieved at up to 98% yield, with reaction times of up to only 15 min, working at room temperature and without the need for inert atm. The results came from multiple reactions, including the reaction of 3,5-Dibromoaniline(cas: 626-40-4Related Products of 626-40-4)

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Related Products of 626-40-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary