Month: December 2022

Huang, Benhua published the artcileSynthesis of mesoporous zirconium-containing silicates and their application for catalytic asymmetric addition of diethylzinc to aldehydes, Product Details of C10H15ClO3S, the publication is Journal of Porous Materials (2017), 24(4), 867-879, database is CAplus.

A series of mesoporous zirconium-containing silicates were prepared in sol-gel, which were further functionalized by chiral sulfonyl chloride and proline for catalytic asym. addition of diethylzinc to aldehydes. These materials had good porosities, hexagonal symmetries and internal chiralities. Moreover, significant morphol. variations were observed when preparative conditions were changed. These materials also showed good to excellent enantioselectivities in catalysis, and there was chiral induction synergy between silicate matrix and attached ligand. Recycling of catalyst was tested, and promising results were obtained. This study would contribute to the design of mesoporous chiral catalysts.

Journal of Porous Materials published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, Product Details of C10H15ClO3S.

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

Chen, Jinyi published the artcileDensity, viscosity, and saturated vapour pressure of 3-chloro-4-fluoronitrobenzene and 3-chloro-2-fluoronitrobenzene, HPLC of Formula: 350-30-1, the publication is Journal of Chemical Thermodynamics (2021), 106337, database is CAplus.

D. and viscosity data of pure 3-chloro-4-fluoronitrobenzene and 3-chloro-2-fluoronitrobenzene were obtained in temperature range from 318.15 K to 348.15 K at the local atm. pressure of 99.7 kPa. The value of corresponding saturated vapor pressure of two isomers were determined in the temperature range of 409 K to 517 K. The relationship between temperature and d. can be well correlated by the linear equation. The viscosity data was well described by the Litovitz, Ghatee, VFT, and Andrade equations, and the calculated value by the VFT equation is consistent with the measured data. Both the Antoine and Riedel equations can accurately describe the relationship between saturated vapor pressure and temperature of 3-chloro-4-fluoronitrobenzene and 3-chloro-2-fluoronitrobenzene, which can meet the requirements for chem. design. In addition, the thermal expansion coefficient was determined based on the d. data, and the molar vaporisation enthalpy of two isomers was evaluated using the Clausius-Clapeyron equation.

Journal of Chemical Thermodynamics published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C6H3ClFNO2, HPLC of Formula: 350-30-1.

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

Ma, Xufeng published the artcileMixed Alkyl/Aryl Diphos Ligands for Iron-Catalyzed Negishi and Kumada Cross Coupling Towards the Synthesis of Diarylmethane, SDS of cas: 939-99-1, the publication is ChemCatChem (2021), 13(24), 5134-5140, database is CAplus.

Mixed alkyl/aryl diphos ligands have been prepared and their application in iron-catalyzed cross coupling of benzylic chlorides with diaryl zinc (Negishi) or aryl Grignard reagents (Kumada) towards the synthesis of diarylmethane has been evaluated. The iron-diphos catalytic system exhibited the enhanced activity and selectivity in the two coupling reactions. The electron-rich mixed PPh₂/PCy₂ ligands outperformed their sym. PPh₂ congeners, and led to decreased homocoupling byproduct formation. It indicates that the electronic effect of the ligands plays an important role in the catalytic performance. The Fe catalyst bearing an electron-rich PCy₂ substituent and a sterically demanding tert-Bu on ethene backbone exhibited the best catalytic performance and good functional group tolerance in the two cross coupling reactions.

ChemCatChem published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C8H6ClF3, SDS of cas: 939-99-1.

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

Yan, Dingyuan published the artcileA selenium-catalysed para-amination of phenols, SDS of cas: 145349-62-8, the publication is Nature Communications (2018), 9(1), 1-9, database is CAplus and MEDLINE.

Se-catalyzed para-amination of phenols was reported while, in contrast, the reactions with sulfur donors were stoichiometric. A catalytic amount of phenylselenyl bromide smoothly converts N-aryloxyacetamides to N-acetyl p-aminophenols. When the para position was substituted (for example, with tyrosine), the dearomatization occurred and 4,4-disubstituted cyclodienone products were obtained. A combination of exptl. and computational studies was conducted and suggested the weaker Se-N bond plays a key role in the completion of the catalytic cycle. Our method extends the selenium-catalyzed processes to the functionalization of aromatic compounds Finally, the mild nature of the para-amination reaction was demonstrated by generating an AIEgen 2-(2′-hydroxyphenyl)benzothiazole (HBT) product in a fluorogenic fashion in a PBS buffer.

Nature Communications published new progress about 145349-62-8. 145349-62-8 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronic Acids, name is 2-Chloro-4-methylphenylboronic acid, and the molecular formula is C6H4ClNO2, SDS of cas: 145349-62-8.

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

Wu, Xue-Liang published the artcileAminochlorination in Water: First Bronsted Acid-Promoted Synthesis of Vicinal Chloramines, HPLC of Formula: 7080-50-4, the publication is Journal of Organic Chemistry (2007), 72(24), 9398-9401, database is CAplus and MEDLINE.

A practical and scalable route for the regioselective and diastereoselective synthesis of vicinal chloro amines from electron-deficient olefins and Chloramine-T promoted by Bronsted acids in water has been realized for the first time. This novel protocol is efficient, mild, ecofriendly, and broadly applicable for the aminochlorination of various electron-deficient olefins including α,β-unsaturated ketones, cinnamate and cinnamamide. Water represents as a privileged solvent for the aminochlorination reaction in the authors’ reaction system.

Journal of Organic Chemistry 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 C3H5BN2O2, HPLC of Formula: 7080-50-4.

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

Li, Qianli published the artcileSyntheses and characterization of organostannoxanes derived from 2-chloroisonicotinic acid: Tetranuclear and hexanuclear, HPLC of Formula: 6313-54-8, the publication is Polyhedron (2015), 361-368, database is CAplus.

Three types of ladder-like organostannoxanes, [(Me₂Sn)₂(μ₃-O)L₂]₂ (1), [(n-Bu₂Sn)₂(μ₃-O)(μ-OH)L]₂ (2), [(Ph₂Sn)₂(μ₃-O)(μ-OH)L]₂ (3), [(Bz₂Sn)₂(μ₃-O)(μ-OH)L]₂ (4) and [(Me₂Sn)₂(μ₃-O)(μ-OSnMe₃)L]₂ (5) (LH = 2-chloroisonicotinic acid), have been synthesized by the treatment of 2-chloroisonicotinic acid and the corresponding diorganotin(IV) dichloride or trimethyltin(IV) chloride with sodium ethoxide in methanol. All of the complexes have been fully characterized by elemental anal. and FT-IR, NMR (¹H, ¹³C, and ¹¹⁹Sn) spectroscopy, and particularly for 1, 2, 4 and 5, by x-ray crystallog. The structural analyses of 1, 2 and 4 reveal them to be tetranuclear, possessing two different ladder-like structures. Complexes 5 is also a ladder-like structure, but the essential difference from 1 to 4 is that complex 5 is a hexanuclear complex containing mixed tri- and dimethyltin units, where the central tetranuclear Sn₄O₄ motif is bridged by two μ-OSn(Me)₃ groups. A series of O-H···O, O-H···N and C-H···Cl intermol. hydrogen bonds in these complexes play an important function in the supramol. aggregation, and 2D network structures are formed by these interactions.

Polyhedron 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

Wang, Sheng published the artcilePhoto-induced morphology transition of a multifunctional photochromic bisthienylethene molecule with switchable aggregation-induced emission, HPLC of Formula: 219537-97-0, the publication is Science China: Chemistry (2018), 61(10), 1301-1306, database is CAplus.

A novel multifunctional mol. BTE-CNPH was designed and synthesized by connecting 2-(3�5�bis(trifluoromethyl)-biphenyl-4-yl)-2-cyanovinyl group to both side of the bisthienylethene (BTE), which exhibited excellent aggregation-induced emission (AIE) and bistable photochromism. High-contrast (>60) reversible fluorescence switching was achieved in the 1D nanowires, solid of BTE-CNPH and also in a polymethyl methacrylate (PMMA) film loaded with 1% BTE-CNPH under the alternative irradiation by 365 nm and visible light. Interestingly, the nanowire-like assembly morphol. of BTE-CNPH in aqueous THF (THF) solution of specific concentration was observed to translate into amorphous pieces gradually upon prolonged irradiation by the 365 nm, accompanying with photo-tunable AIE emission.

Science China: Chemistry 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 C12H15ClO3, HPLC of Formula: 219537-97-0.

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

Mei, Lei published the artcileHalogen Bonded Three-Dimensional Uranyl-Organic Compounds with Unprecedented Halogen-Halogen Interactions and Structure Diversity upon Variation of Halogen Substitution, Name: 2-Chloroisonicotinic acid, the publication is Crystal Growth & Design (2015), 15(3), 1395-1406, database is CAplus.

Actinide-based metal-organic materials have drawn much attention due to their intriguing 5f bonding properties and promising applications in nuclear fuels and other fields. Introduction of weak interactions, such as halogen bonds, into actinide-organic hybrid materials will provide them with more flexibility and dynamics. The first case of halogen bonded three-dimensional (3D) uranyl-organic supramol. frameworks with regular nanoscale channels has been obtained from multifunctional halogen-substituted isonicotinic acids. Distinct from conventional halogen bonded uranyl-organic frameworks, the supramol. networks obtained here consist of three-component cocrystals and have been assemblied by intensive supramol. networks to obtain an extended 3D geometry. Moreover, secondary “X₃” and “X₆” halogen-halogen interactions resulting from the driving forces of primary hydrogen bonds have been found and analyzed by quantum chem. calculation, indicating their feature of weak bonding and special geometry. It is notable that this unprecedented type of “X₆” synthon, especially for “Br₆“, represents a new pattern of halogen-halogen interaction. When halogen substitution of the organic precursor is changed, another type of halogen bonded and hydrogen bonded 3D uranyl-organic framework with two-dimensional layered networks and crosslinking agents formed in situ was acquired. Finally, reversible transformation of 3D uranyl-organic supramol. frameworks is available through loss and regain of water involving in hydrogen bonding networks and thus affords them structural dynamics.

Crystal Growth & Design 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, Name: 2-Chloroisonicotinic acid.

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

Liu, Jiawei published the artcileZinc-Catalyzed Hydroxyl-Directed Regioselective Ring Opening of Aziridines in S_N2 Reaction Pathway, Product Details of C7H13ClNNaO5S, the publication is ACS Catalysis (2020), 10(1), 556-561, database is CAplus.

In this protocol, a zinc-catalyzed catalytic regioselective ring opening of electronically and sterically unbiased 2,3-aziridinyl alcs. has been accomplished. The directing effect of the hydroxyl moiety enables the selective nucleophilic attack to the C-3 position of 2,3-aziridinyl alcs. with various aromatic amines and thiophenols as nucleophiles. This operationally simple reaction provides convenient access to a variety of amino alcs. and hydroxyl sulfides in excellent regiocontrol. Moreover, simple derivatization of the ring opening product establishes a general strategy to approach internal vicinal diamines in regioselective and diastereomerically pure form.

ACS Catalysis 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, Product Details of C7H13ClNNaO5S.

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

Chen, Pengquan published the artcileAsymmetric Total Synthesis of Dankasterones A and B and Periconiastone A Through Radical Cyclization, Quality Control of 21286-54-4, the publication is Angewandte Chemie, International Edition (2021), 60(10), 5512-5518, database is CAplus and MEDLINE.

We describe herein the assembly of the cis-decalin framework through radical cyclization initiated by metal-catalyzed hydrogen atom transfer (MHAT), further applied it in the asym. synthesis of dankasterones A and B and periconiastone A. Position-selective C-H oxygenation allowed for installation of the necessary functionality. A radical rearrangement was adopted to create 13(14�)abeo-8-ergostane skeleton. Interconversion of dankasterone B and periconiastone A was realized through biomimetic intramol. aldol and retro-aldol reactions. The MHAT-based approach, serves as a new dissection means, is complementary to the conventional ways to establish cis-decalin framework.

Angewandte Chemie, International Edition published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, Quality Control of 21286-54-4.

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