Tag: M.W=100-150

Corley, L. S. published the artcileHaloaldehyde polymers. 16. Stabilization of anionically-prepared polychloral by end-capping with decomposable cations and other additives, Formula: C3H9ClOS, the publication is Polymer (1979), 20(12), 1535-47, database is CAplus.

Completely or partially stable polychloral [25154-92-1] was obtained by anionic cryotachensic polymerization of Cl₃CCHO in the presence of alkylating or acylating agents, e.g. Me₂SO₄ [77-78-1]. Stabilization was also effected by polymerization using salts with easily decomposed cations as anionic initiators. Sulfonium salts, e.g. Me₃S⁺Cl^– [3086-29-1] and [Me₂S⁺CH₂Ph]Br^– [14182-15-1], and iodonium salts, e.g. Ph₂I⁺Cl^– [1483-72-3], were effective although quant. stabilization was not achieved. Polychloral with improved stability was also obtained using certain amide acetals, e.g. Me₂NCH(OMe)₂ [4637-24-5], as initiators.

Polymer published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Formula: C3H9ClOS.

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

Seno, Manabu published the artcilePreparation, properties, and x-ray photoelectron spectra of palladium(II) and platinum(II) complexes of amine imides aminimides and sulfur ylides, Recommanded Product: trimethyloxosulphonium chloride, the publication is Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999) (1977), 751-7, database is CAplus.

Amine imides RMe2N+N-COR1 (R = PhCH2, p-O2NC6H4CH2; R1 = Me, Et, Ph) and the S ylides Me2S+(O)C-HCOPh with Pd(II) and Pt(II) halides gave ylide-metal complexes PdCl2L2 (L = amine imide), PtCl2[Me2S+(O)C-HCOPh]SEt2, and MCl2[Me2S+(O)C-HCOPh]2 (M = Pd, Pt). IR, 1H and 13C NMR, and x-ray photoelectron spectra indicated that the coordination of the ylide to the metal was through the nucleophilic N+ or C- atom as simple terminal ligands. Cis-PtCl2[Me2S+(O)C-HCOPh]SEt2 released SEt2 in Me2SO giving PtCl2[Me2S+(O)C-HCOPh] which was chelated through the carbanion C and the sulfonium O of the ylide. The thermal properties of the complexes were examined by thermal gravimetric anal. and the nature of the bonding was discussed.

Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999) published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C4H5NS2, Recommanded Product: trimethyloxosulphonium chloride.

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

Matsuda, Akira published the artcileNucleosides and nucleotides. LXVI. Synthesis of 8,6′-cyclo-6′-deoxyhexofuranosyladenines: adenosines fixed in an anti-conformation, SDS of cas: 5034-06-0, the publication is Chemical & Pharmaceutical Bulletin (1986), 34(4), 1573-8, database is CAplus.

For studies of the conformation of nucleosides around the glycosyl linkages, the carbon-bridged cycloadenosines I (R = OH, R¹ = H; R = H, R¹ = OH) were prepared by the following route. Treatment of N⁶-benzoyl-2′,3′-O-isopropylideneadenosine 5′-aldehyde with dimethyloxosulfonium methylide afforded the 5′,6′-anhydrohexofuranosyladenine II, which was treated with thiophenoxide to give the diastereomeric 6′-phenylthio derivatives III. Photoirradiation of III followed by 5′-O-acetylation afforded III. Attempted synthesis of a 8,7′-cycloheptofuranosyl derivative by way of photolysis of a 7′-phenylthioheptofuranosyladenine resulted in the formation of 5′,6′,7′-trideoxy-2′,3′-O-isopropylidene-β-D–ribo-heptofuranosyladenine. The nature of the CD spectra of I is discussed.

Chemical & Pharmaceutical Bulletin published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, SDS of cas: 5034-06-0.

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

Jones, Gurnos published the artcileReactions between 4-pyrimidones and sulfur ylides: cyclopropanation and ring opening reactions, HPLC of Formula: 5034-06-0, the publication is Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) (1983), 2645-8, database is CAplus.

Reaction of pyrimidones I (R = H, R¹ = Me, CH₂Ph) with C^–H₂S⁺(O)Me₂ (II) gave the corresponding (Z)-R¹NHCOCH:CHNHCHO and cyclopropapyrimidones III in 32, 24, 8, and 27% yield, resp. Analogous reaction of I (R = SMe, R¹ = Me) (IV) with II in DMSO gave 7.5% III (R = SMe, R¹ = Me) and iodide V. Under certain conditions 41% methylide VI was obtained from IV and II.

Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, HPLC of Formula: 5034-06-0.

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

Molander, Gary A. published the artcileA modified procedure for the palladium catalyzed borylation/Suzuki-Miyaura cross-coupling of aryl and heteroaryl halides utilizing bis-boronic acid, Synthetic Route of 116850-28-3, the publication is Tetrahedron (2015), 71(35), 5758-5764, database is CAplus and MEDLINE.

A modified Pd-catalyzed method of forming aryl- and heteroarylboron species and a two-step, one-pot borylation/Suzuki-Miyaura cross coupling using the atom economical tetrahydroxydiboron (bis-boronic acid, BBA) is reported. By using ethylene glycol as an additive, the new method results in increased yields, lower BBA loading, faster reaction times, and a broader reaction scope, including previously problematic substrates such as heterocycles e. g., I.

Tetrahedron published new progress about 116850-28-3. 116850-28-3 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzene, name is 2-Chloro-1-fluoro-3-methylbenzene, and the molecular formula is C7H6ClF, Synthetic Route of 116850-28-3.

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

Kuhn, Richard published the artcileTrimethylsulfoxonium ion, COA of Formula: C3H9ClOS, the publication is Justus Liebigs Annalen der Chemie (1958), 117-21, database is CAplus.

Me₂SO (I) (16 g.) and 30 ml. MeI refluxed 3 days gave 25 g. octagonal plates of trimethylsulfoxonium iodide, Me₃S⁺OI^– (II), m. 200° (H₂O), insoluble in C₆H₆, Et₂O, CHCl₃, petr. ether, sparingly soluble in MeOH, soluble in H₂O (1.5 g. in 100 ml. at 20°). II shaken with an aqueous suspension of AgCl gave the H₂O-soluble chloride, long needles, (MeOH-C₆H₆); picrate, decompose 210° (H₂O); tetraphenylborate, m. 195° (aqueous EtOH). The reineckate, phosphomolybdate, and phosphotungstate are very little soluble Thermal decomposition of II gave I. II shaken with aqueous CO₂-free Ag₂O gave the oily hydroxide, which in the presence of air crystallized to the bicarbonate or carbonate. Reduction of II with HI gave blue-black crystals of the periodide, Me₃S⁺I₃^–, which on boiling with H₂O yielded iodine and Me₃S⁺I^–, identical with an authentic specimen. II (1 g.) and 5 ml. pyridine (III), refluxed 15 min., or the chloride and III refluxed 240 min. at 115°, gave quant. yields of III.MeI and III.MeCl, resp. Similarly II and quinoline gave the corresponding MeI derivative, m. 70-2° (monohydrate) (EtOH). II (2.2 g.), 0.7 g. p-O₂NC₆H₄OH, and 10 g. Ag₂O in Me₂NCHO shaken 2 days at 20°, CHCl₃ added, the mixture filtered, washed with 2N NaOH and H₂O, dried, and concentrated gave 78% p-O₂NC₆H₄OMe, m. 55°, b_0.1 100-5°.

Justus Liebigs Annalen der Chemie published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, COA of Formula: C3H9ClOS.

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

Li, Feng published the artcilePolymethylene Brushes via Surface-Initiated C1 Polyhomologation, Quality Control of 5034-06-0, the publication is Journal of the American Chemical Society (2021), 143(47), 19873-19880, database is CAplus and MEDLINE.

Surface-initiated polymerization reactions are a powerful tool to generate chain-end-tethered polymer brushes. This report presents a synthetic strategy that gives access to structurally well-defined hydrocarbon polymer brushes of controlled mol. weights, which can be further modified to generate more complex surface-attached polymer architectures. The hydrocarbon brushes reported in this study are polymethylene brushes that are obtained via surface-initiated C1 polyhomologation of dimethylsulfoxonium methylide. The strategy outlined here is based on the use of an alkylboronic acid pinacol ester initiator, which allows for controlled, unidirectional chain growth by monomer insertion into only the C-B bond of the initiator and which presents the polymerization active group at the growing polymer chain end. This surface-initiated C1 polyhomologation methodol. is compatible with photopatterning strategies and can be used to generate micropatterned polymethylene brush films. Furthermore, conversion of the boronic ester chain-end functionalities to hydroxyl groups allows for selective chain-end modification and enables access to a variety of surface-anchored block copolymer architectures by chain extension via, for example, ring-opening or atom transfer radical polymerization chemistries.

Journal of the American Chemical Society published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Quality Control of 5034-06-0.

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

Fray, M. Jonathan published the artcileOn the stereoselectivity of epoxide formation using dimethyloxosulfonium methylide. X-ray structure of (5SR)-5-[(1RS)-1-methyl-2-oxacyclopropyl]pyrrolidin-2-one, Quality Control of 5034-06-0, the publication is Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) (1983), 395-401, database is CAplus.

Epoxidation of 5-acetylpyrrolidin-2-one with dimethyloxosulfonium methylide in THF at 20° for 2 h and then 55° for 1 h gave a 78:22 mixture of epoxides I (α-Me, β-Me) (II and III, resp.) whereas in the presence of ZnCl₂ a 23:77 mixture of II and III was obtained. The configuration of these epoxides was determined from the NMR spectra of the corresponding carbonate derivatives IV and by x-ray crystallog. anal. of III.

Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Quality Control of 5034-06-0.

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

Lowe, Robert A. published the artcileSynthesis and evaluation of the performance of a small molecule library based on diverse tropane-related scaffolds, Recommanded Product: trimethyloxosulphonium chloride, the publication is Bioorganic & Medicinal Chemistry (2020), 28(9), 115442, database is CAplus and MEDLINE.

A unified synthetic approach was developed that enabled the synthesis of diverse tropane-related scaffolds. The key intermediates that were exploited were cycloadducts formed by reaction between 3-hydroxypyridinium salts and vinyl sulfones or sulfonamides. The diverse tropane-related scaffolds were formed by addition of substituents to, cyclization reactions of, and fusion of addnl. ring(s) to the key bicyclic intermediates. A set of 53 screening compounds was designed, synthesized and evaluated in order to determine the biol. relevance of the scaffolds accessible using the synthetic approach. Two inhibitors of Hedgehog signalling, and four compounds with weak activity against the parasite P. falciparum, were discovered. Three of the active compounds may be considered to be indotropane or pyrrotropane pseudo natural products in which a tropane is fused with a fragment from another natural product class. It was concluded that the unified synthetic approach had yielded diverse scaffolds suitable for the design of performance-diverse screening libraries.

Bioorganic & Medicinal Chemistry published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Recommanded Product: trimethyloxosulphonium chloride.

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

Yamamoto, H. published the artcileOrally active cephalosporins. Part 3: synthesis, structure-activity relationships and oral absorption of novel C-3 heteroarylmethylthio cephalosporins, Synthetic Route of 75341-23-0, the publication is Bioorganic & Medicinal Chemistry (2001), 9(2), 465-475, database is CAplus and MEDLINE.

A series of 7β-[(Z)-2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido]-3-(heteroarylmethylthio)cephalosporins was designed, synthesized and evaluated for antibacterial activity and oral absorption in rats. Antibacterial activity was markedly influenced by the structure of the heteroaromatic ring moiety. Oral absorption was influenced by the heteroaromatic ring moiety as well as by the arrangement of heteroatoms. Among these compounds, FK041, 7β-[(Z)-2-(2-aminothiazol-4-yl)-2-(hydroxyimino)acetamido]-3-[(pyrazol-3-yl)methylthio]-3-cephem-4-carboxylic acid, showed potent antibacterial activity against both Gram-pos. and Gram-neg. bacteria including Haemophilus influenzae. Further, it showed higher oral absorption than CFDN.

Bioorganic & Medicinal Chemistry published new progress about 75341-23-0. 75341-23-0 belongs to chlorides-buliding-blocks, auxiliary class Thiadiazole,Chloride, name is 2-(Chloromethyl)-5-methyl-1,3,4-thiadiazole, and the molecular formula is C17H14N2O2, Synthetic Route of 75341-23-0.

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