Tag: M.W=300-350

Gao, Meng published the artcileA fluorescent light-up probe with AIE characteristics for specific mitochondrial imaging to identify differentiating brown adipose cells, SDS of cas: 1207448-58-5, the publication is Chemical Communications (Cambridge, United Kingdom) (2014), 50(61), 8312-8315, database is CAplus and MEDLINE.

We report the design and synthesis of a specific mitochondrial fluorescent probe AIE-MitoGreen-1 with AIE characteristics to monitor the mitochondrial morphol. changes and identify the differentiation process of living brown adipose cells. The probe AIE-MitoGreen-1 has significant advantages such as high cell-permeability, good mitochondrial retention, low background fluorescence, large Stokes shift, and low toxicity.

Chemical Communications (Cambridge, United Kingdom) published new progress about 1207448-58-5. 1207448-58-5 belongs to bromides-buliding-blocks, auxiliary class Bromide,Benzene,Phenol,Ether,Aldehyde, name is 4-((6-Bromohexyl)oxy)-2-hydroxybenzaldehyde, and the molecular formula is C13H17BrO3, SDS of cas: 1207448-58-5.

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

Koelle, U. published the artcileCpCoBr intermediates in the cyclopentadienylation of CoBr₂ with sodium cyclopentadienide, Computed Properties of 18346-57-1, the publication is Journal of Organometallic Chemistry (1982), 233(2), 253-8, database is CAplus.

Reaction of CoBr₂ and NaCp (Cp = η⁵-cyclopentadienyl) at low temperature, followed by addition of diene or acetylene gives the complexes CpCo(diene). The scope and mechanism of this novel reaction were investigated. The intermediate is [CpCoBr]₂. Further reaction of Cp₂Co and CoBr₂ gives [CoCp₂]Br and Co, the amounts of which vary with the reaction time.

Journal of Organometallic Chemistry published new progress about 18346-57-1. 18346-57-1 belongs to bromides-buliding-blocks, auxiliary class Cobalt, name is Cobalt(II) dibromo(1,2-dimethoxyethane), and the molecular formula is C4H10Br2CoO2, Computed Properties of 18346-57-1.

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

Verolet, Quentin published the artcileDesign and Synthesis of Mixed Oligomers with Thiophenes, Dithienothiophene S,S-Dioxides, Thieno[3,4]pyrazines and 2,1,3-Benzothiadiazoles: Flipper Screening for Mechanosensitive Systems, Recommanded Product: 2,5-Dibromo-3,4-dinitrothiophene, the publication is ChemistryOpen (2015), 4(3), 264-267, database is CAplus and MEDLINE.

Monomers with large surface area and high quantum yield, that was fluorescent flippers, were engineered into twisted push-pull oligomers to create membrane probes with high mechanosensitivity and long fluorescence lifetime. The synthesis and characterization of thieno[3,4]pyrazines and 2,1,3-benzothiadiazoles were described in comparison with the original dithienothiophene S,S-dioxides. Dithienothiophene S,S-dioxide flippers were confirmed as the best reported so far, and poor results with single flipper probes support that two flippers were needed for the probe to really ‘swim’ i.e., for high mechanosensitivity.

ChemistryOpen published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C13H10F2, Recommanded Product: 2,5-Dibromo-3,4-dinitrothiophene.

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

Herberich, Gerhard E. published the artcileDerivatives of borole. V. Synthesis of [1-(diisopropylamino)borole]metal complexes and the Diels-Alder dimer of 1-(diisopropylamino)borole, Category: bromides-buliding-blocks, the publication is Chemische Berichte (1985), 118(11), 4303-13, database is CAplus.

Oxidation of Li [1-(diisopropylamino)borolenediide] (I) with SnCl₂ forms the Diels-Alder dimer II. I is a versatile reagent for the formation of [1-(diisopropylamino)borole]metal complexes. Suitable substrates are metal halides (CoBr₃·DME, NiCl₂·DME), organometallic metal halides, and simple metal halides in the presence of CO. Thermal reactions of II with carbonyl compounds may also give borole complexes. Fifteen compounds of Cr, Mn, Fe, Co, Ni, Ru, and Rh, including triple-decked complexes, are described.

Chemische Berichte published new progress about 18346-57-1. 18346-57-1 belongs to bromides-buliding-blocks, auxiliary class Cobalt, name is Cobalt(II) dibromo(1,2-dimethoxyethane), and the molecular formula is C4H10Br2CoO2, Category: bromides-buliding-blocks.

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

Qi, Ji published the artcilePanchromatic small molecules for UV-Vis-NIR photodetectors with high detectivity, HPLC of Formula: 52431-30-8, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2014), 2(13), 2431-2438, database is CAplus.

Two donor-acceptor-donor (D-A-D) type low-bandgap small mols., M1 and M2, with bis(2-thienyl)-N-alkylpyrrole (TPT) as the donor and thieno[3,4-b]thiadiazole (TT) as the acceptor were designed and synthesized. The absorption, transmission, electrochem., thermal and film properties were studied. The compounds showed panchromatic absorption in the spectral range of 300-1000 nm. They exhibited semi-transparent property in the visible region (400-700 nm). Small mol. photodetectors (SMPDs) based on M1 and M2 were fabricated and studied. For the SMPD with BCP as the hole blocking layer (HBL), a detectivity of 5.0 × 10¹¹ Jones at 800 nm at -0.1 V was obtained, which is among the highest detectivities reported for NIR SMPDs. With a sufficiently thin Ag electrode, visibly transparent PDs with an average transmittance of 45% in the visible region were obtained for the 1st time. The transparent PDs exhibited fairly constant and high detectivity of (1-10) × 10¹¹ Jones over λ = 300-900 nm. Side chains of the compounds exhibited a great influence on the device performance, which could be assigned to their film absorption coefficient, mol. packing and active layer morphol.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C4Br2N2O4S, HPLC of Formula: 52431-30-8.

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

Li, Yan published the artcileCobalt-catalysed enantioselective C(sp³)-C(sp³) coupling, COA of Formula: C4H10Br2CoO2, the publication is Nature Catalysis (2021), 4(10), 901-911, database is CAplus.

Enantioselective C(sp³)-C(sp³) coupling substantially impacts organic synthesis but remains challenging. Cobalt has played an important role in the development of homogeneous organometallic catalysis, but there are few examples of its use in asym. cross-coupling. Here, a cobalt-catalyzed enantioselective C(sp³)-C(sp³) coupling reaction, namely, alkene hydroalkylation, to access chiral fluoroalkanes was reported. This reaction represents a catalyst-controlled enantioselective coupling mode in which a tailor-made auxiliary is unnecessary; via this reaction, an aliphatic C-F stereogenic center can be introduced at the desired position in an alkyl chain.

Nature Catalysis published new progress about 18346-57-1. 18346-57-1 belongs to bromides-buliding-blocks, auxiliary class Cobalt, name is Cobalt(II) dibromo(1,2-dimethoxyethane), and the molecular formula is C4H10Br2CoO2, COA of Formula: C4H10Br2CoO2.

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

Cheminet, Nathalie published the artcileElaboration of low-band-gap π-conjugated systems based on thieno[3,4-b]pyrazines, Formula: C4Br2N2O4S, the publication is Pure and Applied Chemistry (2020), 92(2), 335-353, database is CAplus.

In order to understand the electronic contribution of the thienopyrazine building block on the electronic properties of π-conjugated systems, small mols. containing thiophene and thienopyrazine moieties are synthesized and jointly studied by theor. (DFT) and exptl. methods (UV-Vis, UPS). Taking advantages of these preliminar attractive results, four low band gap extended structures have been elaborated on the base of Donor-Acceptor-Donor sequences (DAD); these elongated π-conjugated mols. exhibit noticeable electronic and absorption properties spreading from the near UV to NIR regions.

Pure and Applied Chemistry published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C4Br2N2O4S, Formula: C4Br2N2O4S.

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

Namkoong, Yon published the artcileElectrochemiluminescent detection of glucose in human serum by BODIPY-based chemodosimeters for hydrogen peroxide using accelerated self-immolation of boronates, Safety of 2-(4-(Bromomethyl)-2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, the publication is Chemical Communications (Cambridge, United Kingdom) (2020), 56(55), 7577-7580, database is CAplus and MEDLINE.

BODIPY-based ECL chemodosimeters were developed for the detection of hydrogen peroxide. The reactivity of boronate towards hydrogen peroxide was enhanced by adjacent fluorine atoms. In combination with glucose oxidase, a fluorine-substituted probe successfully quantified the glucose level in human serum, providing its potential as a versatile tool in point-of-care testing applications.

Chemical Communications (Cambridge, United Kingdom) published new progress about 1029439-49-3. 1029439-49-3 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Boronic acid and ester,Benzyl bromide,Benzene,Boronate Esters,Boronic acid and ester,, name is 2-(4-(Bromomethyl)-2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C13H17BBrFO2, Safety of 2-(4-(Bromomethyl)-2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

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

Kono, Takahiro published the artcileSynthesis and photo-electrochemical properties of novel thienopyrazine and quinoxaline derivatives, and their dye-sensitized solar cell performance, Quality Control of 52431-30-8, the publication is Organic Electronics (2012), 13(12), 3097-3101, database is CAplus.

Light absorption from visible to NIR region is required to increase the photocurrent and to enhance the photo-energy conversion efficiencies in dye-sensitized solar cells (DSSCs). We have now developed novel thienopyrazine dye TP1 which has absorption up to 700 nm. Quinoxaline dye QX2 with absorption at shorter wavelengths than TP1 has been synthesized for comparisons. The power conversion efficiencies of DSSCs with TP1 and QX2 showed 4.4% and 3.2%, resp. The absorption edge in IPCE of TP1 reached 800 nm and the open circuit voltage (Voc) of QX2 was high (0.77 V). To improve the device performances, QX2 was used as a co-adsorbent dye with TP1. In the mixed sensitizer based DSSC, a high power conversion efficiency of 6.2% was achieved due to the effective light harvesting and steric effect of QX2.

Organic Electronics published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C4Br2N2O4S, Quality Control of 52431-30-8.

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

Steinberger, Simon published the artcileSynthesis and characterizations of red/near-IR absorbing A-D-A-D-A-type oligothiophenes containing thienothiadiazole and thienopyrazine central units, Synthetic Route of 52431-30-8, the publication is Journal of Materials Chemistry (2012), 22(6), 2701-2712, database is CAplus.

A series of π-conjugated A-D-A-D-A-type oligothiophenes comprising heterocyclic thieno[3,4-c][1,2,5]thiadiazole or thieno[3,4-b]pyrazine as the core and dicyanovinyl or trifluoroacetyl as terminal acceptor groups have been developed as red/near-IR absorbers. The resulting oligomers were characterized by UV-visible spectroscopy, cyclic voltammetry and thermal anal. The low energy absorption band of these oligomers was located at 620-707 nm in solution and at 695-830 nm in thin films. Theor. studies reveal that the insertion of the bicyclic nonclassical thiophenes to the conjugated backbone imposed partial quinoidal character to the resulting oligomers and thus reduced the band gap. HOMO-LUMO energies of the oligothiophenes derived from electrochem. measurements were found to be suitable for the use as donor material in combination with fullerene-C₆₀ as acceptor in planar heterojunction solar cells prepared by vacuum deposition. Such devices incorporating these low band gap oligomers exhibited high fill factor values up to 0.60, and power conversion efficiencies of up to 1.3% under air-mass 1.5G illumination. External quantum efficiency spectra clearly showed the contribution of the low energy absorption to the overall photocurrent.

Journal of Materials Chemistry published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C7H5Br2F, Synthetic Route of 52431-30-8.

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