Category: chlorides-buliding-blocks

Mizuno, Noritaka published the artcileA Flexible Nonporous Heterogeneous Catalyst for Size-Selective Oxidation through a Bottom-Up Approach, HPLC of Formula: 23616-79-7, the publication is Angewandte Chemie, International Edition (2010), 49(51), 9972-9976, S9972/1-S9972/19, database is CAplus and MEDLINE.

The nonporous ([(Bu)₄N]₄[γ-SiW₁₀O₃₄(H₂O)₂]·H₂O, 1.H₂O) synthesized through a bottom-up approach sorbs EtOAc, which is highly mobile in the solid bulk of the compound, probably contributing to the easy co-sorption of olefins and H₂O₂. 1 Heterogeneously catalyzes size-selective oxidation (small olefins are much more preferentially epoxidized than large olefins) of various organic substances including olefins, sulfides, and silanes with aqueous H₂O₂ in EtOAc. 1 Can easily be separated by filtration and reused several times with retention of its high catalytic activity and is the 1st example for the heterogeneously catalyzed size-selective liquid-phase oxidation with H₂O₂ by a POM-based catalyst.

Angewandte Chemie, International Edition published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C19H34ClN, HPLC of Formula: 23616-79-7.

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

Takahashi, Hidehiko published the artcileRelation between pharmacological actions on the mammalian ileum and chemical structure of γ-aminobutyric acid (GABA), Computed Properties of 6249-56-5, the publication is Japan J. Physiol. (1961), 229-37, database is CAplus.

The effects of GABA, its derivatives and related compounds on the isolated ileum of the guinea-pig, rabbit, and cat were investigated. GABA caused sustained tone-increasing, or relaxing or transient tone-increasing one followed by relaxation, whereas other ω-amino-acids, such as glycine, δ-aminovaleric acid, and ε-aminocaproic acid had no effect; β-alanine (10^-2M) sometimes produced a slight relaxation. α-Aminobutyric acid and β-aminoisobutyric acid had no effect. 4-Aminobutanol and N-methyl-4-aminobutanol at very high concentrations had a slight stimulant action, although BuOH had none. N-Substitution by Ac, Ph, Bu, or M group reduced the relaxing activity of GABA. Methyl esterification of GABA increased its stimulant activity, but these stimulant effects were antagonized by atropine. As the chem. structure of GABA became more like that of acetylcholine (Ach) its stimulant activity increased; however, even N,N,N-trimethyl-GABA methyl ester, the strongest methyl ester stimulant, was far weaker than Ach. N-Ethylation and N-butylation lessened the stimulant effect of GABA methyl ester and N-phenylation reversed it to a relaxing effect. N-Methyl-GABA ethyl ester had less stimulant effect than N-methyl-GABA methyl ester. N-Methyl-GABA butyl ester and N-methyl-GABA benzyl ester had a marked relaxing effect. N-Methyl-GABA ethyl ester had a weak relaxing action in lower concentrations but a stimulant effect in higher concentrations On the contrary, N-methyl-GABA butyl ester had a weak stimulant effect in lower concentration, but a strong relaxing one in higher concentrations The effects of the β-hydroxy derivative of GABA (GABOB) and its Me ester were similar to that of GABA and its methyl ester but were weaker. Nicotinic acid, isonicotinic acid, and their methyl esters produced a slight relaxation. The rabbit ileum and cat ileum responded in similar manner, but were less sensitive than the guinea-pig ileum.

Japan J. Physiol. published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C23H43NP2, Computed Properties of 6249-56-5.

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

Fukunaga, Kenji published the artcile2-(2-Phenylmorpholin-4-yl)pyrimidin-4(3H)-ones; A new class of potent, selective and orally active glycogen synthase kinase-3β inhibitors, HPLC of Formula: 6313-54-8, the publication is Bioorganic & Medicinal Chemistry Letters (2013), 23(24), 6933-6937, database is CAplus and MEDLINE.

A series of 2-(2-phenylmorpholin-4-yl)pyrimidin-4(3H)-ones was synthesized and examined for their inhibitory activity against glycogen synthase kinase-3β (GSK-3β). We found compounds I (R = 4-F (II), 2,6-di-OMe, 2-F-6-Cl) to possess potent in vitro GSK-3β inhibitory activity with good in vitro PK profiles. Compound II demonstrated significant decrease of tau phosphorylation after oral administration in mice and excellent PK profiles.

Bioorganic & Medicinal Chemistry Letters published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C6H4ClNO2, HPLC of Formula: 6313-54-8.

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

Roumeliotis, P. published the artcileStructure and properties of n-alkyldimethylsilyl bonded silica reversed-phase packings, Name: Dichloro(methyl)(octyl)silane, the publication is Journal of Chromatography (1978), 211-24, database is CAplus.

The effects of the modifier functionality and the chain length of n-alkylchlorosilanes on the surface structure of packings and on their retention behavior in reversed-phase chromatog. were investigated. Comparative retention studies on 3 SiO₂ packings treated to maximum conversion with n-octyltrichlorosilane, n-octylmethyldichlorosilane, and n-octyldimethylmonochlorosilane (I) showed that the reversed-phase character is obtained by using I as the modifying reagent. A series of n-alkyldimethylsilyl bonded SiO₂ packings were prepared with differing n-alkyl chain lengths. Although the packings are hydrophobic, the maximum surface concentration is 2-4 μmol/m² and many hydroxyl groups (3-4 μmole/m²) can still be detected by isotopic exchange. The retention characteristics of hydrocarbons in MeOH-H₂O as the eluent were measured on these packings. The variation of the capacity factors of solutes was related to the total hydrocarbonaceous surface area of the bonded n-alkyldimethylsilyl group, the total hydrocarbonaceous surface area of the solute, and the mol. dipole moment of the solute. The studies are related to high performance liquid chromatog.

Journal of Chromatography published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Name: Dichloro(methyl)(octyl)silane.

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

Cook, A. Gilbert published the artcileThe blue bottle experiment revisited. How Blue? How Sweet?, COA of Formula: C22H23ClN4, the publication is Journal of Chemical Education (1994), 71(2), 160-1, database is CAplus.

The “Blue Bottle” experiment was first popularized by Campbell. The reaction consists of a flask about half full of a colorless liquid that, when shaken, turns blue. When left to stand the liquid turns colorless again. The cyclic process – being shaken, turning blue, being left to stand, and turning colorless – can be repeated many times. By making a series of guided observations with this simple but colorful system, the student can determine a rate law and a plausible mechanism for the reaction without ever knowing the contents of the flask. The activation energy of the reaction can also be measured by making observations at various temperatures This popular experiment has been carried out by general chem. students at Valparaiso University since 1963 with great success.

Journal of Chemical Education published new progress about 4569-86-2. 4569-86-2 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride, and the molecular formula is C22H23ClN4, COA of Formula: C22H23ClN4.

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

Imanishi, Masashi published the artcileDiscovery of a Novel Series of Biphenyl Benzoic Acid Derivatives as Potent and Selective Human β₃-Adrenergic Receptor Agonists with Good Oral Bioavailability. Part I, Category: chlorides-buliding-blocks, the publication is Journal of Medicinal Chemistry (2008), 51(6), 1925-1944, database is CAplus and MEDLINE.

A novel class of biphenyl analogs containing a benzoic acid moiety based on lead compound I have been identified as potent and selective human β₃ adrenergic receptor (β₃-AR) agonists with good oral bioavailability and long plasma half-life. After further substituent effects were investigated at the terminal Ph ring of lead compound I, it has been discovered that more lipophilic substitution at the R position improved potency and selectivity. As a result of these studies, II and III were identified as the leading candidates with the best balance of potency, selectivity, and pharmacokinetic profiles. In addition, compounds II and III were evaluated to be efficacious for a carbachol-induced increase of intravesical pressure, such as an overactive bladder model in anesthetized dogs. This represents the first demonstrated result dealing with β₃-AR agonists.

Journal of Medicinal Chemistry published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Category: chlorides-buliding-blocks.

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

Hashimura, Kazuya published the artcileA stereocontrolled route to both enantiomers of the necine base dihydroxyheliotridane via intramolecular 1,3-dipolar addition using the same chiral precursor, Related Products of chlorides-buliding-blocks, the publication is Journal of the Chemical Society, Chemical Communications (1995), 2291-2, database is CAplus.

Diastereofacial selectivity in an enantiospecific intramol. 1,3-dipolar addition is controlled by adjusting the size of the tether between the dipole and the dipolarophile to give 2,3-disubstituted pyrrolidines enantiomeric with respect to the newly generated stereogenic 2,3-centers depending on the tether size; this leads to stereocontrolled synthesis of the (-)-(I) and (+)-enantiomers of the necine base dihydroxyheliotridane from chiral O-benzylglycidol.

Journal of the Chemical Society, Chemical Communications published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C3H3Br2ClO, Related Products of chlorides-buliding-blocks.

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

Lu, Guo-Liang published the artcileSynthesis and structure-activity relationships for tetrahydroisoquinoline-based inhibitors of Mycobacterium tuberculosis, Computed Properties of 209919-30-2, the publication is Bioorganic & Medicinal Chemistry (2020), 28(22), 115784, database is CAplus and MEDLINE.

A series of 5,8-disubstituted tetrahydroisoquinolines e.g., 2-((5-(4-chlorophenyl)pyridin-2-yl)methyl)-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydroisoquinoline were shown to be effective inhibitors of M. tb in culture and modest inhibitors of M. tb ATP synthase. There was a broad general trend of improved potency with higher lipophilicity. Large substituents (e.g., Bn) at the tetrahydroquinoline 5-position were well-tolerated, while N-methylpiperazine was the preferred 8-substituent. Structure-activity relationships for 7-linked side chains showed that the nature of the 7-linking group was important; -CO- and -COCH₂– linkers were less effective than -CH₂– or -CONH- ones. This suggests that the positioning of a terminal aromatic ring is important for target binding. Selected compounds showed much faster rates of microsomal clearance than the clin. ATP synthase inhibitor bedaquiline, and modest inhibition of mycobacterial ATP synthase.

Bioorganic & Medicinal Chemistry published new progress about 209919-30-2. 209919-30-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is 4-Chloro-2-methylphenylboronic acid, and the molecular formula is C7H8BClO2, Computed Properties of 209919-30-2.

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