Category: 617-52-7

Egly, Julien published the artcileCopper(I) complexes with remotely functionalized phosphine ligands: Synthesis, structural variety, photophysics and effect onto the optical properties, SDS of cas: 617-52-7, the publication is Inorganica Chimica Acta (2021), 119971, database is CAplus.

The synthesis, chem. and photophys. investigation of a series of eight novel copper-halide derivatives with different nuclearity is herein presented. One mononuclear copper(I) complex with formula [CuI(pyridine)(P)₂], where P is a functionalized phosphine, six dinuclear derivatives bearing the rhombic {Cu₂I₂} subunits and with general formula [Cu(μ-I)(P)(N)]₂ (N = pyridine, quinoline and 4-cyanopyridine) as well as one tetranuclear copper-iodide clusters of general formula [Cu(μ-I)P]₄ consisting of a cubane-like {Cu₄X₄} motif were straightforwardly prepared, also by mechano-chem. synthetic procedure. The phosphine ligands were prepared in excellent yield by using simple hydrophosphination reactions. For five of the investigated cuprous iodide derivatives their atom connectivity and solid-state crystalline packing was unambiguously confirmed by solving their single-crystal x-ray structure. All the investigated complexes resulted into photo- and thermally-stable luminescent species. In the solid state as microcrystalline powder samples, the complexes display intense photoluminescence ranging from the sky-blue to orange-red portion of the spectrum with PLQY values of 0.28-0.50 and 0.34-0.97 at room and low (77 K) temperature, resp., depending on the nature of both the coordinated N-heteroaromatic ring and phosphine ligands. In spite of the remote location of the functionalization of the phosphine, profound effects are observed onto the solid-state emission properties highlighting the importance of microenvironment for the emitters in the aggregated phase.

Inorganica Chimica Acta published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, SDS of cas: 617-52-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wang, Huamin published the artcileA base-controlled switch of SO₂ reincorporation in photocatalyzed radical difunctionalization of alkenes, Safety of Dimethyl itaconate, the publication is Chem (2021), 7(12), 3412-3424, database is CAplus.

Control of selectivity is a pivotal challenge in radical chem. owing to the high reactivity and instability of radical species. Herein, a switchable, base-controlled strategy toward the reincorporation/release of SO₂ in photocatalyzed radical difunctionalization of alkenes has been described. By this chemodivergent strategy, a variety of valuable, otherwise difficult-to-access γ-trifluoromethylated ketones and trifluoromethylated sulfonyl ketones can be selectively furnished from the same starting materials. This method features high chemoselectivity, a broad substrate scope, excellent functional group tolerance, and facile scale-up and was applied in a one-pot synthetic procedure. Evaluation of the reaction conditions and mechanistic studies indicate that the choice of base can invert the chemoselectivity of the reaction, demonstrating control over a challenging radical selectivity pattern.

Chem published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C18H24N6O6S4, Safety of Dimethyl itaconate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Krause, Bernhard M. published the artcileItaCORMs: conjugation with a CO-releasing unit greatly enhances the anti-inflammatory activity of itaconates, Quality Control of 617-52-7, the publication is RSC Medicinal Chemistry (2021), 12(12), 2053-2059, database is CAplus and MEDLINE.

Endogenous itaconate as well as the gasotransmitter CO have recently been described as powerful anti-inflammatory and immunomodulating agents. However, each of the two agents comes along with a major drawback: Whereas itaconates only exert beneficial effects at high concentrations above 100 μM, the uncontrolled application of CO has strong toxic effects. To solve these problems, we designed hybrid prodrugs, i.e. itaconates that are conjugated with an esterase-triggered CO-releasing acyloxycyclohexadiene-Fe(CO)₃ unit (ItaCORMs). Here, we describe the synthesis of different ItaCORMs and demonstrate their anti-inflammatory potency in cellular assays of primary murine immune cells in the low μmolar range (<10 μM). Thus, ItaCORMs represent a promising new class of hybrid compounds with high clin. potential as anti-inflammatory agents.

RSC Medicinal Chemistry published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Quality Control of 617-52-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Swain, Amanda published the artcileComparative evaluation of itaconate and its derivatives reveals divergent inflammasome and type I interferon regulation in macrophages, Application In Synthesis of 617-52-7, the publication is Nature Metabolism (2020), 2(7), 594-602, database is CAplus and MEDLINE.

Following activation, macrophages undergo extensive metabolic rewiring1,2. Production of itaconate through the inducible enzyme IRG1 is a key hallmark of this process3. Itaconate inhibits succinate dehydrogenase4,5, has electrophilic properties6 and is associated with a change in cytokine production4. Here, we compare the metabolic, electrophilic and immunol. profiles of macrophages treated with unmodified itaconate and a panel of commonly used itaconate derivatives to examine its role. Using wild-type and Irg1-/- macrophages, we show that neither di-Me itaconate, 4-octyl itaconate nor 4-monoethyl itaconate are converted to intracellular itaconate, while exogenous itaconic acid readily enters macrophages. We find that only di-Me itaconate and 4-octyl itaconate induce a strong electrophilic stress response, in contrast to itaconate and 4-monoethyl itaconate. This correlates with their immunosuppressive phenotype: di-Me itaconate and 4-octyl itaconate inhibited IκBζ and pro-interleukin (IL)-1β induction, as well as IL-6, IL-10 and interferon-β secretion, in an NRF2-independent manner. In contrast, itaconate treatment suppressed IL-1β secretion but not pro-IL-1β levels and, surprisingly, strongly enhanced lipopolysaccharide-induced interferon-β secretion. Consistently, Irg1-/- macrophages produced lower levels of interferon and reduced transcriptional activation of this pathway. Our work establishes itaconate as an immunoregulatory, rather than strictly immunosuppressive, metabolite and highlights the importance of using unmodified itaconate in future studies.

Nature Metabolism published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H8BClO2, Application In Synthesis of 617-52-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Major, Mate M. published the artcileNew chiral thioether-phosphite ligands and their rhodium-coordination chemistry: steric and electronic properties, dynamic processes and application in catalysis, Computed Properties of 617-52-7, the publication is Journal of Coordination Chemistry (2021), 74(8), 1311-1322, database is CAplus.

Thioether-phosphite ligands (S)-BINOL-PO(CH₂)_nSPh (SP’s, n = 2, 3; BINOL-H₂ = 1,1′-binaphthyl-2,2′-diol, H₈-1,1′-binaphthyl-2,2′-diol) with axially chiral binaphthyl or 5,5′,6,6′,7,7′,8,8′-octahydrobinaphthyl moiety and their [Rh(COD)(SP)]BF₄ complexes have been synthesized to study their coordination chem. and catalytic features and to compare them to those of the structurally analogous phosphine-phosphites (S)-BINOL-PO(CH₂)_nPPh₂ (PP’s). NMR exchange studies on [Rh(COD)(SP)]BF₄ complexes showed selective 1,5-cyclooctadiene dynamics. Firm evidence has been found that this fluxional process involves dissociation of the Rh-sulfur bond. Based on in situ NMR studies, SP ligands can form two types of bis-ligated species at ligand-to-metal ratio higher than 1. Unlike bis-ligated phosphine-phosphite complexes, bis-ligated thioether-phosphite Rh-complexes can efficiently catalyze asym. hydrogenation reactions due to their distinct coordination chem.

Journal of Coordination Chemistry published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Computed Properties of 617-52-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Bohre, Ashish published the artcileSingle-Step Production of Bio-Based Methyl Methacrylate from Biomass-Derived Organic Acids Using Solid Catalyst Material for Cascade Decarboxylation-Esterification Reactions, Application In Synthesis of 617-52-7, the publication is ACS Sustainable Chemistry & Engineering (2021), 9(7), 2902-2911, database is CAplus.

This study shows the direct chem. conversion of a widely available carbohydrate-derived itaconic acid/methanol into the Me methacrylate (MMA) ester via cascade decarboxylation/esterification reactions has been accomplished as a first-time occurrence over solid catalysts. The state-of-the-art Pt/Al₂O₃ catalytic processing displayed an optimum MMA compound selectivity (38.2 mol %) in the presence of an aqueous solution mixture with an alk. base substance. To eliminate issues associated with the utilization of precious-metal materials, corrosive water-dissolved hydroxides, and deactivation, hexaaluminate was introduced for active stable decomposition in the production of MMA. Since defined acidic/basic sites are necessary to promote intermediates, barium hexaaluminate, calcium hexaaluminate and lanthanum hexaaluminate were prepared by tuning their phys. properties. To shed light on reactivity, the catalysts were characterized by extensive microscopic and spectroscopic techniques. Barium hexaaluminate (BHA) was found to have the highest turnover frequency (TOF) among all tested values. Detailed exptl./structural investigations indicated that a medium-strength Bronsted/weak Lewis boundary along with peculiar layered structure, surface defects, and characteristic area are strongly correlated with the activity/stability of BHA. A plausible elementary mechanism for this step transformation was also hypothesized, detailing protonated surface-bonded reactive precursor species.

ACS Sustainable Chemistry & Engineering published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Application In Synthesis of 617-52-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Swick, Steven M. published the artcileFluorinating p-Extended Molecular Acceptors Yields Highly Connected Crystal Structures and Low Reorganization Energies for Efficient Solar Cells, Application of Dimethyl itaconate, the publication is Advanced Energy Materials (2020), 10(23), 2000635, database is CAplus.

Here, the synthesis, physiochem. properties, thin film morphol., and photovoltaic response of ITN-F4 and ITzN-F4, the first indacenodithienothiophene nonfullerene acceptors that combine p-extension and fluorination, are reported. The neat acceptors and bulk-heterojunction blend films with fluorinated donor polymer poly{[4,8-bis[5-(2-ethylhexyl)-4-fluoro-2-thienyl]benzo[1,2-b:4,5-b’]-dithiophene-2,6-diyl]-alt-[2,5-thiophenediyl[5,7-bis(2-ethylhexyl)-4,8-dioxo-4H,8H-benzo[1,2-c:4,5-c’]dithiophene-1,3-diyl]]} (PBDB-TF, also known as PM6) are investigated using a battery of techniques, including single crystal X-ray diffraction, fs transient absorption spectroscopy (fsTA), photovoltaic response, space-charge-limited current transport, impedance spectroscopy, grazing incidence wide angle X-ray scattering, and d. functional theory level computation. ITN-F4 and ITzN-F4 are found to provide power conversion efficiencies greater and internal reorganization energies less than their non-p-extended and nonfluorinated counterparts when paired with PBDB-TF. Addnl., ITN-F4 and ITzN-F4 exhibit favorable bulk-heterojunction relevant single crystal packing architectures. fsTA reveals that both ITN-F4 and ITzN-F4 undergo ultrafast hole transfer (<300 fs) in films with PBDB-TF, despite excimer state formation in both the neat and blend films.

Advanced Energy Materials published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C9H21NO3, Application of Dimethyl itaconate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 617-52-7, name is Dimethyl itaconate, belongs to esters-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 617-52-7, COA of Formula: C7H10O4

The procedure of Example D1 is repeated using 0.4 g (2.53 mmol) of dimethyl itaconate as starting material and 8.77 mg (0.0133 mmol) of compound B1 as ligand. The conversion is 100%. Removal of the solvent on a rotary evaporator gives a quantitative yield of (2R)-dimethyl succinate having an enantiomeric purity of 99.5% ee.

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Reference:
Patent; Kesselgruber, Martin; Thommen, Marc; Lotz, Mathias; US2009/270622; (2009); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics