Month: December 2022

Mahadevappa, D. S. published the artcileParamagnetic resonance in gamma-irradiated chloramine-T, Quality Control of 7080-50-4, the publication is Journal of the Indian Chemical Society (1971), 48(7), 683-4, database is CAplus.

The ESR spectra of p-MeC6H4SO2NClNa (I) and p-MeC6H4SO2NClNa.3H2O (II) (irradiated by 60Co γ-rays to total doses of 2.74 × 1019 and 2.86 × 1019 eV/g, resp.) at room temperature consist of single absorption lines which are slightly asym. No hyperfine splitting was observed even under maximum resolution. The g1-, g2-, and g3-tensors, resp., are: I 2.006, 2.0036, 2.000; II 2.014, 2.006, 2.000. The odd electron probably moves in a delocalized π orbital. Irradiation of solid I by Cu Kα x-rays and 60Co γ-rays resulted in intense decomposition of the compound; the number of mols. decomposed per 100 eV of radiant energy was ≈300, which indicates the operation of chain factors in the various decomposition steps.

Journal of the Indian Chemical Society published new progress about 7080-50-4. 7080-50-4 belongs to chlorides-buliding-blocks, auxiliary class Halogenation Reagent,Inhibitor, name is Sodium chloro(tosyl)amide trihydrate, and the molecular formula is C7H13ClNNaO5S, Quality Control of 7080-50-4.

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

Tzschucke, C. Christoph published the artcileArenes to anilines and aryl ethers by sequential iridium-catalyzed borylation and copper-catalyzed coupling, Recommanded Product: 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, the publication is Organic Letters (2007), 9(5), 761-764, database is CAplus and MEDLINE.

N-Alkyl- and N-arylanilines were synthesized from arenes by a two-step sequence of iridium-catalyzed borylation and copper-catalyzed coupling with amines. Diaryl ethers were obtained by a related sequence of arene borylation, followed by coupling with phenols. In particular, 3,5-disubstituted arylamines and aryl ethers were prepared by initiating this sequence with meta-substituted arenes.

Organic Letters published new progress about 929626-16-4. 929626-16-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronate Esters, name is 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C11H15NO2, Recommanded Product: 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

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

Jun, Bong-Hyun published the artcileSynthesis method of asymmetric gold particles, Formula: C19H14Cl2, the publication is Scientific Reports (2017), 7(1), 1-5, database is CAplus and MEDLINE.

Asym. particles can exhibit unique properties. However, reported synthesis methods for asym. particles hinder their application because these methods have a limited scale and lack the ability to afford particles of varied shapes. Herein, we report a novel synthetic method which has the potential to produce large quantities of asym. particles. Asym. rose-shaped gold particles were fabricated as a proof of concept experiment First, silica nanoparticles (NPs) were bound to a hydrophobic micro-sized polymer containing 2-chlorotritylchloride linkers (2-CTC resin). Then, half-planar gold particles with rose-shaped and polyhedral structures were prepared on the silica particles on the 2-CTC resin. Particle size was controlled by the concentration of the gold source. The asym. particles were easily cleaved from the resin without aggregation. We confirmed that gold was grown on the silica NPs. This facile method for synthesizing asym. particles has great potential for materials science.

Scientific Reports published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, Formula: C19H14Cl2.

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

Takahashi, Hidehiko published the artcileChemical aspects of plateau formation in the action current of the myelinated nerve fiber, Product Details of C7H16ClNO2, the publication is Japan. J. Physiol. (1960), 280-91, database is CAplus.

Among simple oxidizing agents, only H₂O₂ at concentrations higher than 2% produced a plateau in toad single myelinated nerve fibers in the temporal course of action current. Its effect was mainly due to hypertonicity, but its oxidizing potency was somewhat favorable to plateau formation. p-Quinone depolarized the Ranvier’s node and delayed the repolarization phase at the same time. Although recovery with the addition of cysteine was not so good, its effect was essentially attributable to its oxidizing potency, for hydroquinone at high concentrations caused deterioration. In the plasma membrane of the Ranvier’s node, the repolarization phase of action potential can be delayed most effectively by the –S–M–S– linkage (M represents bivalent transition metals).

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 C6H8N2, Product Details of C7H16ClNO2.

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

Gramstad, Thor published the artcileHydrogen bonding. XXIII. Interaction of chloroform with various phosphoryl compounds. Higuchi plot. Solvent effect, Application In Synthesis of 866-23-9, the publication is Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (1972), 28(7), 1405-13, database is CAplus.

The Higuchi plot has been used to evaluate the Kassocn., ΔH, and ΔS values for the 1:1 association between CHCl3 and 6 phosphoryl compounds ΔH forms a linear relation with the change in NMR chem. shift, Δδx, and with ir frequency shift, ΔvC-D measured with CDCl3. Also a linear relation exists between Taft σ* constant and ΔH. On replacing CCl4 with cyclohexane as solvent, the Kassocn. and ΔH values are increased considerably.

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Application In Synthesis of 866-23-9.

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

Imhoff, Viviane published the artcileInhibitors of the carrier-mediated influx of auxin in suspension-cultured tobacco cells, Quality Control of 33697-81-3, the publication is Planta (2000), 210(4), 580-588, database is CAplus and MEDLINE.

Active auxin transport in plant cells is catalyzed by two carriers working in opposite directions at the plasma membrane, the influx and efflux carriers. A role for the efflux carrier in polar auxin transport (PAT) in plants has been shown from studies using phytotropins. Phytotropins have been invaluable in demonstrating that PAT is essential to ensure polarized and coordinated growth and to provide plants with the capacity to respond to environmental stimuli. However, the function of the influx carrier at the whole-plant level is unknown. New auxin-transport inhibitors which could be employed to investigate its function were identified. Thirty-five aryl and aryloxyalkylcarboxylic acids were assayed for their ability to perturb the accumulation of 2,4-D and 1-NAA in suspension-cultured tobacco (Nicotiana tabacum L.) cells. As 2,4-D and 1-NAA are preferentially transported by the influx and efflux carriers, resp., accumulation experiments utilizing synthetic auxins provide independent information on the activities of both carriers. The majority (60%) of compounds half-inhibited the carrier-mediated influx of [¹⁴C]2,4-D at concentrations of less than 10 μM. Most failed to interfere with [³H]NAA efflux, at least in the short term. Even though they increasingly perturbed auxin efflux when given a prolonged treatment, several compounds were much better at discriminating between influx and efflux carrier activities than naphthalene-2-acetic acid which is commonly employed to investigate influx-carrier properties. Structure-activity relationships and factors influencing ligand specificity with regard to auxin carriers are discussed.

Planta 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, Quality Control of 33697-81-3.

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

Wissler, Joerg published the artcile1,2-Bis(5-chloro-2-methyl-3-thienyl)cyclopentene, SDS of cas: 219537-97-0, the publication is Acta Crystallographica, Section E: Structure Reports Online (2006), 62(12), o5649-o5650, database is CAplus.

The cyclopentene ring of 1,2-bis(5-chloro-2-methyl-3-thienyl)cyclopentene, C₁₅H₁₄Cl₂S₂, is almost planar. The 2 thiophene rings are twisted out of the mean plane of the cyclopentene ring by 39.97(5) and 50.84(5)°. Crystallog. data are given.

Acta Crystallographica, Section E: Structure Reports Online published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C19H17N2NaO4S, SDS of cas: 219537-97-0.

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

Wissler, Joerg published the artcile5,5′-Dimethyl-4,4′-bis[2-(2-methyl-3-thienyl)cyclopentenyl]-2,2′-bithiophene, Product Details of C15H14Cl2S2, the publication is Acta Crystallographica, Section E: Structure Reports Online (2007), 63(6), o2813-o2814, database is CAplus.

The mol. of 5,5′-dimethyl-4,4′-bis[2-(2-methyl-3-thienyl)cyclopentenyl]-2,2′-bithiophene, C₃₀H₃₀S₄, is located on a center of inversion. The cyclopentene ring is almost planar. The thiophene rings are twisted out of the plane of the cyclopentene ring by 47.41(8) and 46.25(9)°. Crystallog. data are given.

Acta Crystallographica, Section E: Structure Reports Online published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C6H16OSi, Product Details of C15H14Cl2S2.

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

Koppenhoefer, B. published the artcileBackbone modification of Chirasil-Val: effect of nonpolar side chains on enantiomer separation in gas chromatography, Computed Properties of 14799-93-0, the publication is Chromatographia (1995), 40(11/12), 718-23, database is CAplus.

The polysiloxane backbone of the gas chromatog. phase Chirasil-Val has been modified by replacing one Me group per dialkylsiloxy unit by pentyl and hexyl groups, resp. The new phases offer the advantage of reduced polarities and softening points, while the separation factors (α) of enantiomeric pairs of N,O-trifluoroacetyl amino acid Pr esters show small but intriguing deviations from those determined on Chirasil-Val.

Chromatographia 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, Computed Properties of 14799-93-0.

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

Perlikowska, Wieslawa published the artcileOne-pot stereoselective synthesis of (Z)-diethyl α-chlorovinylphosphonates, Application of Diethyltrichloromethylphosphonate, the publication is Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1997), 967-970, database is CAplus.

Di-Et trichloromethylphosphonate, treated with BuLi followed by an aldehyde (or cycloalkenone), was converted to α-chlorovinylphosphonates, e.g. 85% (Z)-PhCH:C(Cl)(PO₃Et₂), via the intermediate formation of a bisphosphonate and a Wadsworth-Emmons olefination. High (Z) stereoselectivity of the reaction is discussed in terms of the conformational preferences of the adducts.

Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Application of Diethyltrichloromethylphosphonate.

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