Month: November 2022

Semi-Industrial Fluorination of β-Keto Esters with SF₄ : Safety vs Efficacy was written by Trofymchuk, Serhii A.;Kliukovskyi, Denys V.;Semenov, Sergey V.;Khairulin, Andrii R.;Shevchenko, Valerii O.;Bugera, Maksym Y.;Tarasenko, Karen V.;Volochnyuk, Dmitriy M.;Ryabukhin, Sergey V.. And the article was included in Synlett in 2020.Application In Synthesis of Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

The possibility of deoxofluorination of β-keto esters using SF₄ was investigated. The scope and limitation of the reaction were determined The efficient method for the synthesis of β,β-difluorocarboxylic acids was elaborated based on the reaction. The set of mentioned acids, being the perspective building blocks for medicinal chem., were synthesized on multigram scale. The safety of SF₄ use was discussed. The described method does not improve upon the safety of using SF₄, but practical recommendations for working with the reagent were proposed. Despite the hazards of using toxic SF₄, a significant increase of efficacy in the synthesis of medicinal-chem.-relevant building blocks, based on the reaction, in comparison with earlier described approaches was shown. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Application In Synthesis of Ethyl 4-chloro-3-oxobutanoate).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Application In Synthesis of Ethyl 4-chloro-3-oxobutanoate

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Construction and investigation of photo-switch property of azobenzene-bridged pillar[5]arene-based [3]rotaxanes was written by Chong, Hui;Nie, Cuiyun;Wang, Lihong;Wang, Sicong;Han, Ying;Wang, Yang;Wang, Chengyin;Yan, Chaoguo. And the article was included in Chinese Chemical Letters in 2021.Electric Literature of C6H12BrCl The following contents are mentioned in the article:

Series of azobenzene-bridged pillar[5]arene-based [3]rotaxanes with different alkyl chain length of guest mols. were constructed by threading-endcapping method with alkylenetriazole as axile and tetrahydrochromene as endcapping group. The encapsulation of pillar[5]arenes were proved by high-resolution mass, ¹H NMR and NOESY spectra. The photo-responsive property were examined by irradiation of the synthesized [3]rotaxanes with 365 nm and blue light LED, which caused trans to cis and cis to trans isomerization, resp. Irradiation of corresponding model guest compounds without pillar[5]arene encapsulation resulted in near completely trans to cis and cis to trans isomerization, indicating the existence of pillar[5]arenes is the determining factor for the comprised photo isomerization efficiency. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Electric Literature of C6H12BrCl).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Electric Literature of C6H12BrCl

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis and Antibacterial Evaluation of Thiouracil Derivatives Containing 1,2,4-Triazolo[1,5-a]Pyrimidine was written by Cui, Penglei;Zhang, Di;Guo, Xiumin;Ji, Shujing;Jiang, Qingmei. And the article was included in Letters in Organic Chemistry in 2021.Name: Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

A series of new thiouracil compounds containing 1,2,4-triazolo[1,5-a]pyrimidines I (R¹ = 4-Cl, 3,4-Cl₂, 3,4,5-Cl₃; R² = H, 2-Cl, 4-Cl, 4-Ph, 2,4-Cl₂) was designed and synthesized. The in vitro antibacterial activities of the new compounds I against Bacillus amyloliquefaciens, Staphylococcus aureus and Bacillus subtilis were tested. The results showed that some of the new compounds had strong inhibitory activities against the tested bacteria. At the concentration of 50μg/mL, the compound I (R¹ = 4-Cl, R² = 2,4-Cl₂) had broad and highest inhibitory activity with the 100% inhibition against the three tested strains, the same as norfloxacin which was used as the control. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Name: Ethyl 4-chloro-3-oxobutanoate).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Name: Ethyl 4-chloro-3-oxobutanoate

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Silver Ions Direct Twin-Plane Formation during the Overgrowth of Single-Crystal Gold Nanoparticles was written by Grzelczak, Marek;Sanchez-Iglesias, Ana;Heidari, Hamed;Bals, Sara;Pastoriza-Santos, Isabel;Perez-Juste, Jorge;Liz-Marzan, Luis M.. And the article was included in ACS Omega in 2016.Recommanded Product: 122-18-9 The following contents are mentioned in the article:

It is commonly agreed that the crystalline structure of seeds dictates the crystallinity of final nanoparticles in a seeded-growth process. Although the formation of monocrystalline particles does require the use of single-crystal seeds, twin planes may stem from either single- or polycrystalline seeds. However, exptl. control over twin-plane formation remains difficult to achieve synthetically. Here, we show that a careful interplay between kinetics and selective surface passivation offers a unique handle over the emergence of twin planes (in decahedra and triangles) during the growth over single-crystalline gold nanoparticles of quasi-spherical shape. Twinning can be suppressed under conditions of slow kinetics in the presence of silver ions, yielding single-crystalline particles with high-index facets. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Recommanded Product: 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Recommanded Product: 122-18-9

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis and structural-reactivity studies of bifunctional MCT/SES (monochlorotriazine/sulphatoethylsulphone) azo reactive disperse dyes applied to wool and polyester fabric was written by Eko, Ishegbe Joyce;Ademola, Bello Kasali;Obinna, Nkeonye Peter;Kogo, A. A.. And the article was included in Chemical Science International Journal in 2019.SDS of cas: 2272-40-4 The following contents are mentioned in the article:

Reactive disperse dyes containing monochlorotriazine/sulphatoethylsulfone reactive moieties were synthesized by condensing aniline with cyanuric chloride and further reacting it with a series of monoazo dyes obtained by diazotising 1-aminobenzene-4-β-sulphatoethylsulfone and coupling with various substituted 2-amino-4-phenylthiazole derivatives The dyeing performance of the dyes was evaluated on polyester and wool fabrics. The dyes obtained gave various shades ranging from reddish to bright red colors. They had good depth and good leveling properties. They dyed fabrics showed moderate to good light fastness properties and very good to excellent fastness to washing and perspiration. The dye bath exhaustion on the polyester and wool fabrics were found to be very good and their fixation values were moderate. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4SDS of cas: 2272-40-4).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.SDS of cas: 2272-40-4

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chemical modification of cellulose to improve its transfer printability was written by Amirshahi, S. H.;Afgeh, M. Ghanbar. And the article was included in Iranian Journal of Polymer Science & Technology in 2001.Application of 2272-40-4 The following contents are mentioned in the article:

By synthesizing a reactive hydrophobe from cyanuric chloride and applying it on cellulosic (cotton) fabric, the water absorption of the fabric is decreased. This hydrophobic substance is anilinodichlorotriazine (ADTC) and is able to react with cellulose like a reactive dye. A strong covalent bond between ADTC and cellulose in the fiber leads to the blockage of hydroxyl groups and reduces the possibility of hydrogen bonding between he fibers and water. Hence, the possibility of transfer printing of treated fabric is facilitated. The relation between the printability of treated fabric with disperse dyes and the concentrations of the reactive hydrophobe is considered. Finally, by varying the inorganic/organic ratio for the treated fabric to the disperse dyes, the affinity of the dyes to cellulose is examined This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Application of 2272-40-4).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Application of 2272-40-4

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Self-assembly of reverse micelle nanoreactors by zwitterionic polyoxometalate-based surfactants for high selective production of β-hydroxyl peroxides was written by Hu, Guicong;Chang, Wen;An, Sai;Qi, Bo;Song, Yu-Fei. And the article was included in Chinese Chemical Letters in 2022.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

A zwitterionic polyoxymetalate (POM) based surfactant was synthesized by covalently grafting two cationic long alkyl tails onto the lacunary site of [PW₁₁O₃₉]^7-. With decreased electrostatic repulsions and increased hydrophobic effect, the POM-based reverse micelles with an average diameter of 5 nm were obtained. Interestingly, when these reverse micelles were applied for catalyzing the oxidation of styrene, an unprecedented β-hydroxyl peroxide compound, 2-hydroxyl-2-phenylethan-1-tert-butylperoxide, was produced with high selectivity of 95.2%. In comparison, the cetyltrimethylammonium electrostatically encapsulated POMs mainly generated the epoxides or 1,2-diols. A free radical mechanism were proposed for the oxidation reaction catalyzed by the zwitterionic POM surfactants. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Category: chlorides-buliding-blocks).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Category: chlorides-buliding-blocks

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Heterogeneously Catalyzed Pechmann Condensation Employing the HFe(SO₄)₂.4H₂O-Chitosan Nano-Composite: Ultrasound-Accelerated Green Synthesis of Coumarins was written by Zarei, Forough;Soleimani-Amiri, Somayeh;Azizi, Zahra. And the article was included in Polycyclic Aromatic Compounds in 2022.Product Details of 638-07-3 The following contents are mentioned in the article:

A heterogeneous magnetic HFe(SO₄)₂.4H₂O-chitosan nano-composite (HFe(SO₄)₂.4H₂O-Ch NCs) was designed and synthesized through a facile and economical two-steps procedure. The synthesized was identified by XRD, EDX, FT-IR, VSM, SEM, TEM, and TGA techniques. The resulting HFe(SO₄)₂.4H₂O-Ch NCs was applied as an efficient nano-catalyst in the green synthesis of coumarin derivatives through Pechmann condensation under solvent-free conditions at 100 °C, and also with ultrasonic-assisted at 70 °C. High yields of the products, short reaction times, and mild reaction conditions were perceived in both methods. The ability of detachment, recycling, and reuse of the nano-catalyst was investigated under reaction conditions. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Product Details of 638-07-3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Product Details of 638-07-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Separation of homogeneous palladium catalysts from pharmaceutical industry wastewater by using synergistic recovery phase via HFSLM system was written by Sunsandee, Niti;Phatanasri, Suphot;Pancharoen, Ura. And the article was included in Arabian Journal of Chemistry in 2021.Reference of 5137-55-3 The following contents are mentioned in the article:

Separation of homogeneous palladium catalysts from pharmaceutical industry wastewater by using synergistic recovery phase via hollow fiber supported liquid membrane (HFSLM) system is presented. HFSLM impregnated with N-methyl-N,N,N-trioctylammonium chloride (Aliquat 336) as the extractant dissolved in cyclohexane. The influence of various chem. parameters, including the concentration of extractant and recovery phases as well as recovery selector concentration in recovery phase, were also studied. A mixture of hydrochloric acid and thiourea was used as synergistic recovery phase. The highest percentage of extraction and recovery was 99.95% and 88.12%, resp. Furthermore, the kinetics of recovery reaction was studied to provide reaction order, reaction rate constant, equilibrium constant and distribution ratio. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Reference of 5137-55-3).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Reference of 5137-55-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Nickel-catalyzed reductive thiolation and selenylation of unactivated alkyl bromides was written by Fang, Yi;Rogge, Torben;Ackermann, Lutz;Wang, Shun-Yi;Ji, Shun-Jun. And the article was included in Nature Communications in 2018.Reference of 6294-17-3 The following contents are mentioned in the article:

Herein, a user-friendly, nickel-catalyzed reductive thiolation of unactivated primary and secondary alkyl bromides with thiosulfonates as reliable thiolation reagents, which are easily prepared and bench-stable is presented. Furthermore, a series of selenides is also prepared in a similar fashion with selenosulfonates as selenolation reagents. This catalytic method offers a facile synthesis of a wide range of unsym. alkyl-aryl or alkyl-alkyl sulfides and selenides I (R = -CH₂Ph, -OPh, -CH₂CH₂CN, etc.; X = S, Se; R¹ = Ph, 4-MeC₆H₄, 4-MeOC₆H₄, etc.) under mild conditions with an excellent tolerance of functional groups. Likewise, the use of sensitive and stoichiometric organometallic reagents can be avoided. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Reference of 6294-17-3).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Reference of 6294-17-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics