Author: Jessica.F

Cho, Young Shin published the artcileConformational Refinement of Hydroxamate-Based Histone Deacetylase Inhibitors and Exploration of 3-Piperidin-3-ylindole Analogues of Dacinostat (LAQ824), Application of 4-Bromo-1-(bromomethyl)-2-fluorobenzene, the publication is Journal of Medicinal Chemistry (2010), 53(7), 2952-2963, database is CAplus and MEDLINE.

A series of conformationally restrained HDAC inhibitors based on the hydroxamic acid dacinostat (LAQ824) was prepared Several scaffolds with improved biochem. and cellular potency, as well as attenuated hERG inhibition, were identified, suggesting that the introduction of mol. rigidity is a viable strategy to enhance HDAC binding and mitigate hERG liability. Further SAR studies around a 3-piperidin-3-ylindole moiety resulted in the discovery of compound I, for which a unique conformation was speculated to contribute to overcoming increased lipophilicity and attenuating hERG binding. Separation of racemic I afforded its R-enantiomer, which demonstrated improved potency in both enzyme and cellular assays compared to dacinostat.

Journal of Medicinal Chemistry published new progress about 76283-09-5. 76283-09-5 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Benzyl bromide,Benzene, name is 4-Bromo-1-(bromomethyl)-2-fluorobenzene, and the molecular formula is C7H5Br2F, Application of 4-Bromo-1-(bromomethyl)-2-fluorobenzene.

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

Smith, J. Anthony published the artcileAcridones and Quinacridones: Novel Fluorophores for Fluorescence Lifetime Studies, Safety of Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, the publication is Journal of Fluorescence (2004), 14(2), 151-171, database is CAplus and MEDLINE.

Two new families of fluorescent probe, acridones and quinacridones, whose fluorescence lifetime can be altered to produce a range of lifetimes from 3 ns to 25 ns are described. Both families of fluorophore have fluorescence lifetimes which are unaffected by pH in the range of 5 to 9 and show a marked resistance to photobleaching. The probes have been modified to allow them to be attached to biomols. and the labeling of a neuropeptide (substance P) is described. The labeled peptides have the same fluorescence lifetime as the free fluorophore. Quinacridone, with an emission around 550 nm offers a long fluorescence lifetime, photostable alternative to fluorescein.

Journal of Fluorescence published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C6H12N2O, Safety of Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide.

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

Stork, Gilbert published the artcileThe Total Synthesis of a Natural Cardenolide: (+)-Digitoxigenin, Product Details of C7H13BrSi, the publication is Journal of the American Chemical Society (1996), 118(43), 10660-10661, database is CAplus.

The authors report the total synthesis of natural (+)-digitoxigenin (I), the biol. active cardenolide which, as its trisaccharide derivative digitoxin, is one of the most frequently used of the active principles isolated from Digitalis species. I was prepared from chiral decalone II via octahydrophrenanthrenone III (TBS = Me₃CSiMe₂) and steroidal aldehyde IV.

Journal of the American Chemical Society published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C17H37NO3, Product Details of C7H13BrSi.

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

Brase, Stefan published the artcileIntramolecular Heck couplings and cycloisomerizations of bromodienes and enynes with 1′,1′-disubstituted methylenecyclopropane terminators: Efficient syntheses of [3]dendralenes, Application In Synthesis of 69361-41-7, the publication is European Journal of Organic Chemistry (2005), 4167-4178, database is CAplus.

2-Bromoalka-1,n-dienes, e.g. I, with tetrasubstituted methylenecyclopropane end groups, under palladium catalysis, underwent cyclization with cyclopropane-ring opening to give 2-ethenyl-3-methylene-1-cycloalkenes, e.g. II, which are substituted monocyclic [3]dendralenes. The same cross-conjugated trienes were isolated in good to excellent yields (77-92 %) from the corresponding 1,6- (e.g. III) and 1,7-enynes by a more atom-economic, palladium-catalyzed cycloisomerization. The vinylpalladium halide intermediate generated by initial carbopalladation of the 1,6-enyne III with in situ generated phenylpalladium iodide also underwent the same cyclization cascade to yield the correspondingly phenyl-substituted cyclic [3]dendralene. The palladium-catalyzed cycloisomerization of an alk-1-ene-7,12-diyne gave the bicyclic cross-conjugated tetraene. Key features of the mechanism of the palladium-catalyzed cycloisomerization were proved using a specially designed model system. Like other cyclic [3]dendralenes, the ethenyl(methylene)cycloheptene IV underwent a domino-Diels-Alder reaction with N-phenyltriazoline-3,5-dione to give a single diastereomer of the pentacyclic heterocycle.

European Journal of Organic Chemistry published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C7H13BrSi, Application In Synthesis of 69361-41-7.

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

Bernd, Johannes published the artcileElectrochemical O-trifluoromethylation of electron-deficient phenols, Name: 4-Bromo-2,3,5,6-tetrafluorophenol, the publication is Electrochemistry Communications (2021), 107165, database is CAplus.

A simple and sustainable one-step strategy for the preparation of electron-deficient aryl trifluoromethyl ethers (ArOCF₃) from the corresponding phenols by electrochem. synthesis is presented. Anodic oxidation of trifluoromethane sulfinate (Langlois reagent) leads to direct O-trifluoromethylation of phenol-derivatives bearing fluorine, chlorine, bromine and nitrile substituents under mild conditions in yields up to 75% and in gram-scale. This electrochem. protocol provides an economic and green synthesis for an otherwise inaccessible class of mols. without the need for expensive or toxic reagents, oxidants or metal catalysts.

Electrochemistry Communications published new progress about 1998-61-4. 1998-61-4 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Benzene,Phenol, name is 4-Bromo-2,3,5,6-tetrafluorophenol, and the molecular formula is C6HBrF4O, Name: 4-Bromo-2,3,5,6-tetrafluorophenol.

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

Natrajan, Anand published the artcileA green synthesis of chemiluminescent N-sulfopropyl acridinium esters in ionic liquids without using the carcinogen 1,3-propane sultone, Formula: C3H6BrNaO3S, the publication is Green Chemistry Letters and Reviews (2013), 6(3), 237-248, database is CAplus.

Chemiluminescent acridinium dimethylphenyl esters containing hydrophilic N-sulfopropyl groups in the acridinium ring are used as labels in automated immunoassays for clin. diagnostics. Introduction of the N-sulfopropyl group in these labels is normally accomplished by N-alkylation of the corresponding, nonchemiluminescent acridine ester precursors with the toxic carcinogen 1,3-propane sultone. In the current study, we report that sodium 3-bromopropane sulfonate in ionic liquids (ILs) is a benign alternative to 1,3-propane sultone for introducing the N-sulfopropyl group in chemiluminescent acridinium ester labels. The sultone reagent can be eliminated in the synthesis of N-sulfopropyl acridinium dimethylphenyl ester labels by taking advantage of the increased reactivity of acridan esters toward nontoxic sodium 3-bromopropane sulfonate in [BMIM][BF₄]. Sodium 3-bromopropane sulfonate in ILs is also potentially a nontoxic alternative to 1,3-propane sultone for introducing the water-soluble, three-carbon sulfobetaine moiety in other mols. as well.

Green Chemistry Letters and Reviews published new progress about 55788-44-8. 55788-44-8 belongs to bromides-buliding-blocks, auxiliary class Bromide,Salt,Aliphatic hydrocarbon chain,Aliphatic hydrocarbon chain, name is Sodium 3-bromopropane-1-sulfonate, and the molecular formula is C3H6BrNaO3S, Formula: C3H6BrNaO3S.

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

Bhaumik, Jayeeta published the artcileSynthesis and Photophysical Properties of Sulfonamidophenyl Porphyrins as Models for Activatable Photosensitizers, HPLC of Formula: 55788-44-8, the publication is Journal of Organic Chemistry (2009), 74(16), 5894-5901, database is CAplus and MEDLINE.

2,4-Dinitrophenylsulfonamido-substituted tetraphenylporphyrins with varying polarities or with functionality to allow conjugation to biomols. are prepared The fluorescence quantum yields of the dinitrophenylsulfonamido-substituted tetraphenylporphyrins and their parent amino-substituted tetraphenylporphyrins are determined; the kinetics of the cleavage of the dinitrophenylsulfonyl groups by small mol. thiols and the chemoselectivity of cleavage are also determined

Journal of Organic Chemistry published new progress about 55788-44-8. 55788-44-8 belongs to bromides-buliding-blocks, auxiliary class Bromide,Salt,Aliphatic hydrocarbon chain,Aliphatic hydrocarbon chain, name is Sodium 3-bromopropane-1-sulfonate, and the molecular formula is C3H6BrNaO3S, HPLC of Formula: 55788-44-8.

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

Bauer, Heiko published the artcileChromocene, ferrocene, cobaltocene, and nickelocene derivatives with isopropyl and methyl or trimethylsilyl substituents, Application of Cobalt(II) dibromo(1,2-dimethoxyethane), the publication is Journal of Organometallic Chemistry (2016), 63-73, database is CAplus.

From sodium 2,3-diisopropyl-1,4-dimethyl-cyclopentadienide and MBr₂(dme) (M = Fe, Co, Ni) the corresponding ferrocene (1), cobaltocene (2) and nickelocene (3) could be obtained as pure, crystalline solids. From an analogous reaction of sodium 2,3,5-triisopropyl-1,4-dimethyl-cyclopentadienide with FeCl₂, only the mixed-substituted ferrocene (³₂Cp)(²₂Cp)Fe (4) could be crystallized (³₂Cp = 2,3,5-triisopropyl-1,4-dimethyl-cyclopentadienyl, ²₂Cp = 2,3-diisopropyl-1,4-dimethyl-cyclopentadienyl). The trimethylsilyl substituted ferrocene (5) and nickelocene (6) were synthesized from the corresponding metal halides and potassium 2,3-diisopropyl-1,4-dimethyl-5-trimethylsilyl-cyclopentadienide as well as a series of chromocenes with silylated or alkylated cyclopentadienyl ligands (7–10) from chromium(II) acetate. Octaisopropylnickelocene (11) has been obtained and converted to octaisopropylnickelocenium hexafluorophosphate (12). 1,2,3,4-Tetraisopropylnickelocenium tetrabromoaluminate (13) was obtained from tetraisopropylcyclopentadienylnickel(II) tetrabromoaluminate and nickelocene. Crystal structures have been obtained for metallocenes 1–5, 7–9, and 11.

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, Application of Cobalt(II) dibromo(1,2-dimethoxyethane).

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

Bernstein, A. published the artcileSynthesis and stability of triorganostannylalkylsulfonic acids, Recommanded Product: Sodium 3-bromopropane-1-sulfonate, the publication is Zeitschrift fuer Anorganische und Allgemeine Chemie (1991), 41-7, database is CAplus.

Sodium triorganostannylalkylsulfonates R₃Sn(CH₂)_nSO₃Na (I, R = Me, Ph, n = 2,3) are obtained by reaction of triorganostannylsodium with sodium haloalkylsulfonates or propane solution in liquid ammonia. I can be converted by ion-exchange in the free sulfonic acids R₃Sn(CH₂)_nSO₃H which are of limited stability and undergo cyclocondensation reactions with formation of the cyclic triorganotin alkanesulfonates II (R = Me, Ph, n = 1, 2).

Zeitschrift fuer Anorganische und Allgemeine Chemie published new progress about 55788-44-8. 55788-44-8 belongs to bromides-buliding-blocks, auxiliary class Bromide,Salt,Aliphatic hydrocarbon chain,Aliphatic hydrocarbon chain, name is Sodium 3-bromopropane-1-sulfonate, and the molecular formula is C3H6BrNaO3S, Recommanded Product: Sodium 3-bromopropane-1-sulfonate.

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

Zhai, Lipeng published the artcileCationic Covalent Organic Frameworks for Fabricating an Efficient Triboelectric Nanogenerator, SDS of cas: 518-67-2, the publication is ACS Materials Letters (2020), 2(12), 1691-1697, database is CAplus.

Covalent organic frameworks (COFs) have developed as a precisely tailor-made platform for integrating different functionalities into the frameworks via reticular chem. In this work, two COFs with a similar topol. and skeleton but different charge state over the skeleton are designed and applied to clarify the contributions of cationic groups to the output performance of a triboelec. nanogenerator (TENG). The cationic functional centers are distributed alternately over both sides of the pore channels. The cationic COF possesses unconventional electrostatic functions due to the ionic interface over the skeletons. The output performance of a cationic COF decorated with an elec.-dipole-based TENG is improved by a 2-fold contrast to the neutral analog. Moreover, a cationic COF-based TENG is further employed to charge com. capacitors (0.1 F), light up light-emitting diodes (LEDs), and power a stopwatch. This work illustrates the facile construction of a cationic COF and its application in fabricating a TENG, generating an ecofriendly and excellent-performance energy harvesting and self-powered device.

ACS Materials Letters published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C5H10Cl3O3P, SDS of cas: 518-67-2.

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