Tag: M.W=150-200

Keller, Austin N. published the artcileDesign and Characterization of Aprotic N-Heterocyclic Anion Ionic Liquids for Carbon Capture, Computed Properties of 111-83-1, the publication is Journal of Chemical & Engineering Data (2022), 67(2), 375-384, database is CAplus.

The transport properties, thermal properties, and CO₂ solubility for several ionic liquids (ILs) with triethyl(octyl)phosphonium cations and a variety of CO₂-reactive aprotic N-heterocyclic anions (AHAs) are reported in this work. Eleven new ILs were designed and synthesized. They were characterized in terms of their m.ps., glass transition temperatures, decomposition temperatures, viscosities and densities (where possible), as well as their CO₂ capacity as a function of pressure. Of the 11, 3 were solid at room temperature, 1 was a room-temperature liquid which remained liquid upon reaction with CO₂, and 7 others were liquids that crystallized at room temperature upon reaction with CO₂, so experimentation at elevated temperatures was required. The CO₂ uptake isotherms for seven of the ILs, at temperatures ranging from 49 to 64°C and pressures from 0 to 80 kPa, were fit to a Langmuir model. The CO₂ solubility for several of these ILs was among the highest reported at these temperatures and pressures for AHA ILs in the literature, but they have lower thermal stability and higher viscosity than other promising AHA ILs.

Journal of Chemical & Engineering Data published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Computed Properties of 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Huck, L. published the artcileReformatsky and Blaise reactions in flow as a tool for drug discovery: one pot diversity oriented synthesis of valuable intermediates and heterocycles, Recommanded Product: Ethylbromofluoroacetate, the publication is Green Chemistry (2017), 19(6), 1420-1424, database is CAplus.

The application of Reformatskii and Blaise reactions for the preparation of a diverse set of valuable intermediates and heterocycles, e.g., I in a one-pot protocol was described. To achieve this goal, a greener activation protocol for zinc in flow conditions was developed to introduce this metal efficiently into α-bromoacetates. The organozinc compounds were added to a diverse set of ketones and nitriles to obtain a wide range of functional groups and heterocyclic systems.

Green Chemistry published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C4H6BrFO2, Recommanded Product: Ethylbromofluoroacetate.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Sarfraz, Ayesha published the artcileSynthesis, In silico and in vitro studies of Silver(I)-N-heterocyclic carbene complexes, Quality Control of 111-83-1, the publication is Journal of Molecular Structure (2022), 131946, database is CAplus.

In the present study, four silver based NHC (N-heterocyclic carbene) complexes (1c–4c) were designed and synthesized from their precursor salts (1b–4b). The successful synthesis of salts and complexes was assured through spectroscopic techniques (UV-visible, FTIR, ¹H NMR) as well as mass spectrometry. The in silico ADMET study and mol. docking calculations predicted the compounds are good drug candidates having therapeutic potential against multiple cancer targets including COX-1, VEGFA, HIF as well as VGF. Results of in vitro study conducted through MTT assay confirmed that all test compounds have concentration dependent potency but silver complexes (1c–4c) have far superior activity than precursor, salts (1b–4b) and slightly lower than standard drugs (carboplatin and cisplatin) against various cancer cell lines. Among the studied compounds, 3c showed lowest IC₅₀ value of 0.981 ± 0.09, 1.10 ± 0.14 and 0.973 ± 0.12μg/mL against MCF-7, HCT-116 and A549 resp. The test compounds were found good antibacterial agents, when screened against bacterial strains (Staphylococcus aureus, Micrococcus luteus, Escherichia coli and S. typhimurium), as well as antioxidant agents when tested against DPPH free radicals.

Journal of Molecular Structure published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Quality Control of 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zhang, Dapeng published the artcileThe Unexpected Importance of the Primary Structure of the Hydrophobic Part of One-Component Ionizable Amphiphilic Janus Dendrimers in Targeted mRNA Delivery Activity, SDS of cas: 111-83-1, the publication is Journal of the American Chemical Society (2022), 144(11), 4746-4753, database is CAplus and MEDLINE.

Viral and synthetic vectors for delivery of nucleic acids impacted genetic nanomedicine by aiding the rapid development of the extraordinarily efficient Covid-19 vaccines. Access to targeted delivery of nucleic acids is expected to expand the field of nanomedicine beyond most expectations. Both viral and synthetic vectors have advantages and disadvantages. The major advantage of the synthetic vectors is their unlimited synthetic capability. The four-component lipid nanoparticles (LNPs) are the leading nonviral vector for mRNA used by Pfizer and Moderna in Covid-19 vaccines. Their synthetic capacity inspired us to develop a one-component multifunctional sequence-defined ionizable amphiphilic Janus dendrimer (IAJD) delivery system for mRNA. The first experiments on IAJDs provided, through a rational-library design combined with orthogonal-modular accelerated synthesis and sequence control in their hydrophilic part, some of the most active synthetic vectors for the delivery of mRNA to lung. The second experiments employed a similar strategy, generating, by a less complex hydrophilic structure, a library of IAJDs targeting spleen, liver, and lung. Here, we report preliminary studies designing the hydrophobic region of IAJDs by using dissimilar alkyl lengths and demonstrate the unexpectedly important role of the primary structure of the hydrophobic part of IAJDs by increasing up to 90.2-fold the activity of targeted delivery of mRNA to spleen, lymph nodes, liver, and lung. The principles of the design strategy reported here and in previous publications indicate that IAJDs could have a profound impact on the future of genetic nanomedicine.

Journal of the American Chemical Society published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C7H5ClN2S, SDS of cas: 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

He, Rong-De published the artcileReductive Alkylation of Alkenyl Acetates with Alkyl Bromides by Nickel Catalysis, Product Details of C8H17Br, the publication is Angewandte Chemie, International Edition (2022), 61(4), e202114556, database is CAplus and MEDLINE.

Herein a cross-electrophile reaction of alkenyl acetates with alkyl bromides was reported. This work has enabled a new method for the synthesis of aliphatic alkenes from alkenyl acetates to be established that was used to add more structural complexity and mol. diversity with enhanced functionality tolerance. The method allows for a gram-scale reaction and modification of biol. active mols., and it affords access to useful building blocks. Preliminary mechanistic studies revealed that the Ni(I) species plays an essential role for the success of the coupling of these two reactivity-mismatched electrophiles.

Angewandte Chemie, International Edition published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Product Details of C8H17Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Liao, Lihao published the artcileCatalytic Access to Functionalized Allylic gem-Difluorides via Fluorinative Meyer-Schuster-Like Rearrangement, Safety of 7-Bromohept-1-yne, the publication is Angewandte Chemie, International Edition (2020), 59(27), 11010-11019, database is CAplus and MEDLINE.

An unprecedented approach for efficient synthesis of functionalized allylic gem-difluorides via catalytic fluorinative Meyer-Schuster-like rearrangement is disclosed. This transformation proceeded with readily accessible propargylic fluorides, and low-cost B-F reagents and electrophilic reagents by sulfide catalysis [e.g., I → II (88%) in presence of PhSPh as Lewis basic catalyst, tetrafluoroboric acid di-Et ether complex and NIS]. A series of iodinated, brominated, and trifluoromethylthiolated allylic gem-difluorides that were difficult to access by other methods were facilely produced with a wide range of functional groups. Importantly, the obtained iodinated products could be incorporated into different drugs and natural products, and could be expediently converted into many other valuable gem-difluoroalkyl mols. as well. Mechanistic studies revealed that this reaction went through a regioselective fluorination of alkynes followed by a formal 1,3-fluorine migration under the assistance of the B-F reagents to give the desired products.

Angewandte Chemie, International Edition published new progress about 81216-14-0. 81216-14-0 belongs to bromides-buliding-blocks, auxiliary class Linker,PROTAC Linker, name is 7-Bromohept-1-yne, and the molecular formula is C7H11Br, Safety of 7-Bromohept-1-yne.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Murakami, Yukito published the artcileTransition-metal complexes of pyrrole pigments. 16. Cobalt complexes of 1,19-dimethyldehydrocorrins as vitamin B₁₂ models, Name: 3-Bromo-2-methylpropanoic acid, the publication is Journal of the American Chemical Society (1980), 102(22), 6736-44, database is CAplus.

The Co complexes of 1,19-dimethyl-B,C-didehydrocorrin (BDHC) and its tetradehydro analog (TDHC), both having addnl. double bonds at peripheral positions and an addnl. angular Me group compared with the parent corrinoid, were investigated from the viewpoint of vitamin B₁₂ chem. The electronic effect of peripheral double bonds in TDHC is significant, and the TDHC complex is far from analogous to the corrinoid, whereas the BDHC complex is quite analogous to the corrinoid as far as the electronic properties are concerned on the basis of their spectroscopic, electrochem., and axial coordination behaviors. The angular Me groups in the BDHC complex exert an usually large steric effect in the bimol. reactions of Co^I(BDHC) with alkyl donors which result in the formation of an alkyl-Co bond. The steric interaction energies between an axial ligand and an angular Me and between an axial alkyl ligand and the macrocyclic skeleton are estimated from the kinetic and thermodn. data. The BDHC complex coordinated with a bulky alkyl ligand at its axial site undergoes a novel heterolytic C-Co bond cleavage in acidic media, giving Co(III) and a carbanionic intermediate under photolytic conditions and even in the dark. In reference to the electrochem. data for the BDHC complex and the related Co complexes, the significant steric pressure provided by BDHC on the bulky axial ligand is responsible for the heterolytic C-Co cleavage. Significance of the steric pressure effect is briefly discussed in connection with the mechanism for 1,2-rearrangement of substituents placed in the alkyl ligand. A synthetic usage of the BDHC complex as a catalyst for the selective reduction of a primary alkyl bromide is also described.

Journal of the American Chemical Society published new progress about 56970-78-6. 56970-78-6 belongs to bromides-buliding-blocks, auxiliary class Bromide,Carboxylic acid,Aliphatic hydrocarbon chain,Inhibitor, name is 3-Bromo-2-methylpropanoic acid, and the molecular formula is C4H7BrO2, Name: 3-Bromo-2-methylpropanoic acid.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

D′Agostino, Ilaria published the artcileAntibacterial alkylguanidino ureas: Molecular simplification approach, searching for membrane-based MoA, Recommanded Product: 1-Bromooctane, the publication is European Journal of Medicinal Chemistry (2022), 114158, database is CAplus and MEDLINE.

The ever-faster rise of antimicrobial resistance (AMR) represents a major global Public Health challenge. New chem. entities with innovative Modes of Action (MoAs) are thus desirable. We recently reported the development of a novel class of broad-spectrum bactericidal agents, the AlkylGuanidino Ureas (AGU). Due to their polycationic structure, they likely target bacterial membranes. In order to better understand their MoA, we synthesized a library of AGU derivatives by structural simplification of selected hit compounds and developed specific assays based on membrane models by means of both anal. and computational techniques. Cell-based assays provided exptl. evidence that AGUs disrupt bacterial membranes without showing hemolytic behavior. Hence, we herein report a thorough chem. and biol. characterization of a new series of AGUs obtained through mol. simplification, allowing the rational design of potent antibacterial compounds active on antibiotic-resistant strains.

European Journal of Medicinal Chemistry published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Recommanded Product: 1-Bromooctane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

O’Brien, Luke published the artcileGold(I)-Catalyzed Nucleophilic Allylation of Azinium Ions with Allylboronates, Category: bromides-buliding-blocks, the publication is Angewandte Chemie, International Edition (2022), 61(22), e202202305, database is CAplus and MEDLINE.

Gold(I)-catalyzed nucleophilic allylations of pyridinium and quinolinium ions with various allyl pinacolboronates was reported. The reactions was completely selective with respect to the site of the azinium ion that was attacked, to give various functionalized 1,4-dihydropyridines and 1,4-dihydroquinolines. Evidence suggested that the reactions proceed through nucleophilic allylgold(I) intermediates formed by transmetalation from allylboronates. D. functional theory (DFT) calculations provided mechanistic insight.

Angewandte Chemie, International Edition published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Category: bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Fujita, Takeshi published the artcileCatalytic defluorinative [3 + 2] cycloaddition of trifluoromethylalkenes with alkynes via reduction of nickel(II) fluoride species, Name: 7-Bromohept-1-yne, the publication is Dalton Transactions (2015), 44(45), 19460-19463, database is CAplus and MEDLINE.

Nickel-catalyzed [3+2] cycloaddition of 2-trifluoromethyl-1-alkenes with alkynes via domino C-F bond activation was achieved by sequential β-fluorine elimination to give corresponding cyclopentadienes I [R¹ = C₆H₅, 3-FC₆H₄, t-BuOC(O), etc.; R² = n-Pr, iPr; R³ = Me, n-Pr] regioselectively. The nickel(II) fluoride species formed in this reaction was reduced by a diboron compound, regenerating the catalytically active nickel(0) species.

Dalton Transactions published new progress about 81216-14-0. 81216-14-0 belongs to bromides-buliding-blocks, auxiliary class Linker,PROTAC Linker, name is 7-Bromohept-1-yne, and the molecular formula is C7H11Br, Name: 7-Bromohept-1-yne.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary