Tag: M.W=200-250

Kahovec, L. published the artcileRaman effect. CXVII. Rotation isomerism. 9. Polyhaloalkanes, Recommanded Product: 2,3-Dibromo-2,3-dimethylbutane, the publication is Z. physik. Chem. (1940), 48-54, database is CAplus.

Results were obtained for Me₂CX₂, X = Br, I; MeCHXCH₂X, X = Cl, Br; ICH₂CH₂CH₂I; MeCHI₂; BrCH₂CHBr₂; MeCH₂CHMe₂; XMe₂CCMe₂X, X = Cl, Br. Increase in the number of frequencies around 800 cm.^-1 in the series of dihalopropanes and for the CX valence vibrations in the trihaloethanes is attributed to rotation isomerism.

Z. physik. Chem. published new progress about 594-81-0. 594-81-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 2,3-Dibromo-2,3-dimethylbutane, and the molecular formula is C6H12Br2, Recommanded Product: 2,3-Dibromo-2,3-dimethylbutane.

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

Allan, Robin D. published the artcileFacile synthesis of B-phenylethylamine derivatives related to baclofen via aziridine ring opening, HPLC of Formula: 66197-72-6, the publication is Australian Journal of Chemistry (1990), 43(6), 1123-7, database is CAplus.

Nucleophilic ring opening of the protonated salt of 2-(4-chlorophenyl)aziridine with substituted thiols provides a very simple route to β-phenylethylamine derivatives which are analogs of the GAGA_B receptor agonist baclofen and its antagonists phaclofen and saclofen. The condensation-ring opening reaction of thiols with 2-(4-chlorophenyl)aziridine gave H₂NCH₂CH(C₆H₄Cl-4)S(CH₂)_nR (R = CO₂H, PO₃H₂, SO₃H; n = 1,2).

Australian Journal of Chemistry published new progress about 66197-72-6. 66197-72-6 belongs to bromides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyl (bromomethyl)phosphonate, and the molecular formula is C5H12BrO3P, HPLC of Formula: 66197-72-6.

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

Hartrampf, Felix W. W. published the artcileTotal Synthesis of Lycopladine A and Carinatine A via a Base-Mediated Carbocyclization, Synthetic Route of 69361-41-7, the publication is Journal of Organic Chemistry (2017), 82(15), 8206-8212, database is CAplus and MEDLINE.

A concise, enantioselective synthesis of lycopladine A and carinatine A is presented. Our synthetic approach hinges on the recently developed mild carbocyclization of ynones to furnish the hydrindane core of the alkaloids. Their pyridine ring was efficiently installed using the Ciufolini method. Both heterocycles of carinatine A, a rare naturally occurring nitrone, were formed in a single operation.

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, Synthetic Route of 69361-41-7.

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

Doig, Adrian I. published the artcileSynthesis, Catalytic GPx-like Activity, and SET Reactions of Conformationally Constrained 2,7-Dialkoxy-Substituted Naphthalene-1,8-peri-diselenides, Product Details of C12H25Br, the publication is ACS Omega (2022), 7(31), 27312-27323, database is CAplus and MEDLINE.

Several 2,7-dialkoxy-substituted naphthalene-1,8-peri-diselenides were prepared and tested for catalytic antioxidant activity in NMR-based assay employing the reduction of hydrogen peroxide with stoichiometric amounts of benzyl thiol. Acidic conditions enhanced their catalytic activity, whereas basic conditions suppressed it. The highest activity was observed with 2,7-bis(triethyleneglycol) derivative These compounds serve as mimetics of the antioxidant selenoenzyme glutathione peroxidase. Studies based on NMR peak-broadening effects and EPR spectroscopy indicated that a thiol-dependent SET reaction occurs under the conditions of assay, which can be reversed by the addition of triethylamine. In contrast, peak broadening induced by proton-catalyzed electron transfer during the treatment of naphthalene-1,8-peri-diselenides with trifluoroacetic acid can be suppressed by the addition of excess thiol. These observations provide new insights into the redox mechanisms of these processes.

ACS Omega published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, Product Details of C12H25Br.

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

Francavilla, Charles published the artcileNovel N-chloroheterocyclic antimicrobials, Name: Sodium 3-bromopropane-1-sulfonate, the publication is Bioorganic & Medicinal Chemistry Letters (2011), 21(10), 3029-3033, database is CAplus and MEDLINE.

Antimicrobial compounds with broad-spectrum activity and minimal potential for antibiotic resistance are urgently needed. Toward this end, a novel series of N-chloroheterocycles were prepared Of the compounds examined, the N-chloroamine series were found superior over N-chloroamide series in regards to exhibiting high antimicrobial activity, low cytotoxicity, and long-term aqueous stability.

Bioorganic & Medicinal Chemistry Letters 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, Name: Sodium 3-bromopropane-1-sulfonate.

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

Matsuzawa, Tsubasa published the artcileSynthesis of diverse phenothiazines by direct thioamination of arynes with S-(o-bromoaryl)-S-methylsulfilimines and subsequent intramolecular Buchwald-Hartwig amination, Recommanded Product: 2-Bromo-5-methoxybenzene boronic acid, the publication is Chemistry Letters (2018), 47(7), 825-828, database is CAplus.

A facile method for the synthesis of diverse phenothiazines was achieved by direct thioamination of aryne intermediates with S-(o-bromoaryl)-S-methylsulfilimines and subsequent intramol. Buchwald-Hartwig amination. Since various sulfilimines were prepared easily by odorless copper-catalyzed ipso-thiolation of readily available o-bromoarylboronic acids followed by imination and hydrolysis, this approach enabled the synthesis of a wide variety of multisubstituted phenothiazines.

Chemistry Letters published new progress about 89694-44-0. 89694-44-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is 2-Bromo-5-methoxybenzene boronic acid, and the molecular formula is C7H8BBrO3, Recommanded Product: 2-Bromo-5-methoxybenzene boronic acid.

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

Matsuzawa, Tsubasa published the artcileSynthesis of Diverse o-Arylthio-Substituted Diaryl Ethers by Direct Oxythiolation of Arynes with Diaryl Sulfoxides Involving Migratory O-Arylation, Category: bromides-buliding-blocks, the publication is Organic Letters (2017), 19(20), 5521-5524, database is CAplus and MEDLINE.

A diverse range of o-arylthio-substituted diaryl ethers has been synthesized by direct oxythiolation of arynes with diaryl sulfoxides that involves the formation of the C-O and C-S bonds followed by migratory O-arylation.

Organic Letters published new progress about 89694-44-0. 89694-44-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is 2-Bromo-5-methoxybenzene boronic acid, and the molecular formula is C7H8BBrO3, Category: bromides-buliding-blocks.

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

Wu, Hanqing published the artcileNovel fluorescence liquid crystals with high circularly polarized luminescence based on cholesterol-decorated dicyanodistyrylbenzene, Formula: C12H25Br, the publication is Journal of Molecular Liquids (2022), 118663, database is CAplus.

The sym./asym. cholesterol- decorated dicyanodistyrylbenzene were prepared and the influence of sym./asym. structure on circularly polarized luminescence (CPL) properties was investigated for the first time. Both of them exhibited excellent fluorescence in solution and aggregated states. Their chiroptical properties were influenced greatly by the order degree of mol. stacking in different states. The sym. structure with two chiral units was favorable for better CPL emission than asym. structure with one chiral unit. The highest g_lum value was 1.5 x 10^-2 based on the effective chiral transfer and amplification of orderly liquid-crystalline mol. stacking of sym. cholesterol-decorated dicyanodistyrylbenzene in mesophase.

Journal of Molecular Liquids published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C19H34ClN, Formula: C12H25Br.

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

Griffiths, W. Richard published the artcileThe mass spectra of phosphonyl compounds. Part 3. Dimethyl- and diethylalkane and substituted-methane phosphonates, Name: Diethyl (bromomethyl)phosphonate, the publication is Phosphorus and Sulfur and the Related Elements (1978), 5(1), 101-6, database is CAplus.

The electron impact spectra of 28 related phosphonates were determined Et, Me₂CH, and Me₃C groups which are bound directly to P, fragment to the corresponding alkenes; similar Me₂CH, Me₃C groups in the di-Me esters also fragment to ethylene and propene, resp., i.e., the P-alkyl rearranges with transfer of the elements of a Me group to the P ion. The di-Et alkenephosphonates undergo double H rearrangements of an ethoxy group to give dihydroxyphosphonium ions. The di- and trihydroxyphosphonium ions have a characteristic fragmentation which involves loss of water. This characteristic has been used as evidence for the rearrangement of a phosphacylium ion to a dihydroxyphosphonium ion.

Phosphorus and Sulfur and the Related Elements published new progress about 66197-72-6. 66197-72-6 belongs to bromides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyl (bromomethyl)phosphonate, and the molecular formula is C5H12BrO3P, Name: Diethyl (bromomethyl)phosphonate.

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

Hernandez, Andres S. published the artcileEnantiospecific Synthesis of (+)- and (-)-Ferruginine from L-Glutamic Acid. Synthesis of Tropanes via Intramolecular Iminium Ion Cyclization, Category: bromides-buliding-blocks, the publication is Journal of Organic Chemistry (1996), 61(1), 314-23, database is CAplus.

Iminium ions, generated by decarbonylation of N-benzyl-5-[1-(methoxycarbonyl)-4-oxopentyl]prolines, undergo intramol. cyclization to afford 2,4-disubstituted tropanes in good yields. This transformation is also shown to be a stereospecific reaction. The value of these substituted tropanes has been demonstrated by functional group manipulation, leading to the enantiospecific synthesis of (+)-ferruginine, an alkaloid isolated from Darlinga ferruginea, and its unnatural enantiomer, (-)-ferruginine.

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, Category: bromides-buliding-blocks.

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