Month: November 2022

Facts or Artifacts: Pitfalls in Quantifying Sub-ppm Levels of Ammonia Produced from Electrochemical Nitrogen Reduction was written by Biswas, Suchi Smita;Saha, Arunava;Eswaramoorthy, Muthusamy. And the article was included in ACS Omega in 2022.Application of 13820-53-6 The following contents are mentioned in the article:

Synthesis of NH₃ through electrochem. N reduction (ENR) is emerging as one of the attractive research areas in recent years, notwithstanding the enormous challenges it faces in quantification of NH₃ at very low concentrations Several reports claiming high production rate are unwittingly compromised by the accuracy of analyzing a very low concentration (<1 ppm) of NH₃ in the electrolyte post-ENR reaction using the indophenol method. Therefore, the authors have highlighted the significance of selecting and standardizing a right protocol encompassing admissible levels of oxidants and a complexing agent, citrate (to mitigate the effect of interfering metal ions), through elaborate control experiments The importance of setting the lowest limit of NH₃ concentration that can be accurately quantified by the indophenol method is also justified. Further, the exptl. observations were summarized into a protocol, which was followed to reevaluate the performance of two well-claimed electrocatalysts for ENR reported recently in the literature. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Application of 13820-53-6).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) 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. 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 13820-53-6

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

Coumarin-Caged Compounds of 1-Naphthaleneacetic Acid as Light-Responsive Controlled-Release Plant Root Stimulators was written by Kaewchangwat, Narongpol;Thanayupong, Eknarin;Jarussophon, Suwatchai;Niamnont, Nakorn;Yata, Teerapong;Prateepchinda, Sagaw;Unger, Onuma;Han, Bao-hang;Suttisintong, Khomson. And the article was included in Journal of Agricultural and Food Chemistry in 2020.Recommanded Product: 4-Chlororesorcinol The following contents are mentioned in the article:

Six coumarin-caged compounds of 1-naphthaleneacetic acid (NAA) comprising different substituents on the coumarin moiety were synthesized and evaluated for their photophys. and chem. properties as light-responsive controlled-release plant root stimulators. The ¹H NMR and HPLC techniques were used to verify the release of NAA from the caged compounds After irradiation at 365 nm, the caged compounds exhibited the fastest release rate at t_1/2 of 6.7 days and the slowest release rate at t_1/2 of 73.7 days. Caged compounds at high concentrations (10^-5 and 10^-6 M) significantly stimulate secondary root germination while free NAA at the same level is toxic and leads to inhibition of secondary root germination. The cytotoxicity of the caged compounds against fibroblasts and vero cells were evaluated, and the results suggested that, at 10^-5-10^-6 M, caged compounds exhibited no significant cytotoxicity to the cells. Thus, the caged compounds of NAA in this study could be of great benefit as efficient agrochems. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Recommanded Product: 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) 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.Recommanded Product: 4-Chlororesorcinol

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

Coumarin-Caged Compounds of 1-Naphthaleneacetic Acid as Light-Responsive Controlled-Release Plant Root Stimulators was written by Kaewchangwat, Narongpol;Thanayupong, Eknarin;Jarussophon, Suwatchai;Niamnont, Nakorn;Yata, Teerapong;Prateepchinda, Sagaw;Unger, Onuma;Han, Bao-hang;Suttisintong, Khomson. And the article was included in Journal of Agricultural and Food Chemistry in 2020.Reference of 638-07-3 The following contents are mentioned in the article:

Six coumarin-caged compounds of 1-naphthaleneacetic acid (NAA) comprising different substituents on the coumarin moiety were synthesized and evaluated for their photophys. and chem. properties as light-responsive controlled-release plant root stimulators. The ¹H NMR and HPLC techniques were used to verify the release of NAA from the caged compounds After irradiation at 365 nm, the caged compounds exhibited the fastest release rate at t_1/2 of 6.7 days and the slowest release rate at t_1/2 of 73.7 days. Caged compounds at high concentrations (10^-5 and 10^-6 M) significantly stimulate secondary root germination while free NAA at the same level is toxic and leads to inhibition of secondary root germination. The cytotoxicity of the caged compounds against fibroblasts and vero cells were evaluated, and the results suggested that, at 10^-5-10^-6 M, caged compounds exhibited no significant cytotoxicity to the cells. Thus, the caged compounds of NAA in this study could be of great benefit as efficient agrochems. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Reference of 638-07-3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. 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.Reference of 638-07-3

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

Molten-salt assisted synthesis of Cu clusters modified TiO₂ with oxygen vacancies for efficient photocatalytic reduction of CO₂ to CO was written by Bao, Xiaolei;Zhang, Minghui;Wang, Zeyan;Dai, Dujuan;Wang, Peng;Cheng, Hefeng;Liu, Yuanyuan;Zheng, Zhaoke;Dai, Ying;Huang, Baibiao. And the article was included in Chemical Engineering Journal (Amsterdam, Netherlands) in 2022.SDS of cas: 7447-41-8 The following contents are mentioned in the article:

Design and preparation of efficient photocatalyst for CO₂ reduction into fuels remains a serious challenge. Herein, the copper nanoclusters (Cu NCs) modified TiO₂ with oxygen vacancies (OVs) samples (COCT) were obtained by a convenient molten-salt method. The liquid environment of isolate oxygen and the space confinement effect of molten-salt will lead to the generation of highly dispersed Cu NCs and stable OVs. This enables COCT to exhibit excellent photocatalytic CO₂ reduction to CO performance with the highest CO generation rate reaching 40.3μmol h^-1 g^-1, which is more competitive than most reported TiO₂-based photocatalysts. The superior activity is ascribed to the synergistic optimization of the thermodn. and kinetics of photocatalytic CO₂ reduction to CO by Cu NCs and OVs, insuring the reaction pathway with a lower energy barrier. Our work may provide an easy and low-cost strategy for fabricating the highly dispersed cocatalyst together with surface defect to enhance artificial photosynthesis. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8SDS of cas: 7447-41-8).

Lithium chloride (cas: 7447-41-8) 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: 7447-41-8

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

Liquid/Liquid Interface-Assisted Synthesis of Two-Dimensional Metal Networks with High-Density Planar Defects for Electrocatalysis was written by Zhan, Qi;Li, Rui;Liu, Yaming;Zhang, Ke;Zheng, Yangzi;Jin, Mingshang. And the article was included in Chemistry of Materials in 2022.HPLC of Formula: 13820-53-6 The following contents are mentioned in the article:

A metal nanonetwork with high-d. planar defects is an attractive candidate for highly efficient electrocatalysts due to its fast electron transfer capability and abundant active sites. However, its fabrication has met with limited success by far. Herein, the authors report a liquid/liquid interface-assisted synthesis of two-dimensional (2D) Pd networks with high-d. planar defects and their superior catalytic performance for the MeOH oxidation reaction (MOR). The successful preparation of 2-dimensional Pd networks mainly relies on the combination of etching and regrowth of Pd nanocrystals assembled on the H₂O/chlorobenzene interface. Using different metal nanocrystals as the starting materials, the authors could further extend the method for preparing 2-dimensional Au and Pd-Au (Pd-Au) bimetallic networks. During the MOR, the 2-dimensional Pd network could deliver much enhanced activities relative to the pristine nanocubes, with a factor of 3.7 and 2.3 enhancement in specific activity and mass activity, resp., due to the network structure and high-d. planar defects. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6HPLC of Formula: 13820-53-6).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.HPLC of Formula: 13820-53-6

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

Cytotoxic effects of coumarin substituted benzimidazolium salts against human prostate and ovarian cancer cells was written by Karatas, Mert Olgun;Tekin, Suat;Alici, Bulent;Sandal, Suleyman. And the article was included in Journal of Chemical Sciences (Berlin, Germany) in 2019.Safety of Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

The synthesis and anticancer properties of 6-substituted 4-chloromethylene coumarin derivatives I (R¹ = Me, Et, ethoxy, iso-Pr, tert-Bu, benzyl) and benzimidazole derivatives II (R² = Ph, 2,3,4,5,6-pentamethylphenyl, 3,4,5-trimethoxyphenyl), III (R³ = Ph, 2,3,4,5,6-pentamethylphenyl) and IV were reported. For this purpose, six 6-substituted-4-chloromethylene coumarin derivatives I and benzimidazole derivatives II, III and IV were synthesized and characterized. All compounds I, II, III, IV performed significant cytotoxicities at 100μM against human prostate (PC-3) and ovarian (A2780) cancer cell lines. Moreover, some compounds performed significant activities at 1μM against PC-3 and A2780 cancer cell lines and the obtained results suggest that this type of compounds is promising candidate for the treatment of human prostate and ovarian cancers. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Safety of Ethyl 4-chloro-3-oxobutanoate).

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. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Safety of Ethyl 4-chloro-3-oxobutanoate

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

A bifunctional zeolitic porous liquid with incompatible Lewis pairs for antagonistic cascade catalysis was written by Chen, Hao;Yang, Zhenzhen;Peng, Honggen;Jie, Kecheng;Li, Peipei;Ding, Shunmin;Guo, Wei;Suo, Xian;Liu, Jixing;Yan, Ran;Liu, Wenming;Do-Thanh, Chi-Linh;Wang, Hongming;Wang, Zhendong;Han, Lu;Yang, Weimin;Dai, Sheng. And the article was included in Chem in 2021.Application In Synthesis of N-Methyl-N,N-dioctyloctan-1-aminium chloride The following contents are mentioned in the article:

The emergence of porous liquids (PLs) opened opportunities to form unique antagonistic systems capable of fulfilling cascade reactions promoted by incompatible active sites in one pot, which is a long-term challenging subject in catalysis. Herein, unique bifunctional type III PL-based systems were facilely fabricated via assembly of zeolite nanosheets with ionic liquids Rational structural design afforded PLs that feature high zeolite concentration, stable dispersion after 2 years, abundant cavity distribution, and involvement of antagonistic groups (acid and base sites) in separated and active form via steric hindrance control and electronic repulsion regulation. These unique properties worked cooperatively to fulfill the cascade deacetalization-Knoevenagel/Aldol condensation in one pot with superior catalytic efficiency outperforming the traditional systems. The key to success lies in the formation of bifunctional composites, transformation of zeolite from heterogeneous to homogeneous via surface modification, and rapid mass transfer ensured by the rigid porous architecture. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Application In Synthesis of N-Methyl-N,N-dioctyloctan-1-aminium chloride).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) 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. 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 N-Methyl-N,N-dioctyloctan-1-aminium chloride

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

Probing topology of supramolecular complexes between cyclodextrins and alkali metals by ion mobility-mass spectrometry was written by Przybylski, Cedric;Bonnet, Veronique. And the article was included in Carbohydrate Polymers in 2022.Synthetic Route of ClLi The following contents are mentioned in the article:

In this study, the size and shape of supramol. assemblies between cyclooligosaccharides and proton, ammonium or a series of alkali metals by electrospray coupled to trapped ion mobility-mass spectrometry (ESI-TIMS) have investigated. Native cyclodextrins (CD) were selected as models, and collision cross section (CCS) values were deducted for the main pos. singly and doubly charged species. Exptl. CCS values were in good agreement with those obtained from mol. modeling. Due to the high mobility resolving power and resolution, it was possible to highlight the presence of various conformers. Also, TIMS allowed to discriminate and estimate the content of various orientations from non-covalent nanotubes-based CD, involving secondary/secondary rim hydroxyl groups (head-to head), primary/secondary rim (head-to-tail) hydroxyl groups or primary/primary rim (tail-to-tail) hydroxyl groups interactions. Such results pave the way for a better knowledge of the topol. of cyclooligosaccharides based supramol. complexes, demonstrating that TIMS can be a particularly attractive mol. descriptor. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Synthetic Route of ClLi).

Lithium chloride (cas: 7447-41-8) 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. 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.Synthetic Route of ClLi

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

Design and synthesis of new s-triazine polymers and their application as nanoparticulate drug delivery systems was written by Khattab, Sherine N.;Abdel Naim, Samar E.;El-Sayed, Mousa;El Bardan, Aly A.;Elzoghby, Ahmed O.;Bekhit, Adnan A.;El-Faham, Ayman. And the article was included in New Journal of Chemistry in 2016.Quality Control of 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine The following contents are mentioned in the article:

Herein, we report the synthesis of a library of new s-triazine polyamides containing glycine and thioglycolic acid. The reaction of s-triazine dicarboxylic acid derivatives with ethylenediamine, benzidine, piperazine, or p-phenylenediamine, afforded the target designed s-triazine polyamides. The thermal properties of the polymers were evaluated by different techniques, and the thermodn. parameters of the decomposition processes were evaluated. The feasibility of the synthesized polymers as drug nanodelivery systems was investigated. The nanoparticles were loaded with celecoxib (CXB), an anti-inflammatory drug with a highly promising anti-cancer effect, resulting in high entrapment efficiency levels (62.3-99.8%) with good drug loading in the range 1.58-4.19%. After 48 h, 46.90, 64.20, 57.81, 53.95, and 49.43% of CXB was released from polymeric NPs 26, 43, 44, 45, and 46, resp., demonstrating a sustained drug release profile. Notably, free CXB, and CXB-loaded polymeric NPs CXB-43, CXB-45, and CXB-46 demonstrated considerable reduction in cell viability in a dose-dependent manner. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Quality Control of 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Quality Control of 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine

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

Development of simple drift tube design for ion mobility spectrometry based on flexible printed circuit board material was written by Chantipmanee, Nattapong;Hauser, Peter C.. And the article was included in Analytica Chimica Acta in 2021.Synthetic Route of C25H46ClN The following contents are mentioned in the article:

A study on the use of flexible printed circuit board material for the construction of drift tubes for ion mobility spectrometry is reported. This is significantly less complicated than the conventional approach based on stacked electrode and insulator rings, as the material can simply be rolled up to obtain a string of circular electrodes. The size and spacing of the electrodes was found to have a strong effect on the resolving power. For an optimized geometry with electrodes of 1.5 mm width at a pitch of 3.5 mm resolving powers of up to 80 were achieved for quaternary amines introduced by electrospray ionization into a drift tube of 10 cm length and an applied voltage of 4200 V. This performance was found to be comparable to that of a conventional drift tube based on stacked rings with otherwise identical geometry and operating conditions. The entire instrument was constructed inhouse. Its utility was demonstrated with the determination of the C12, C14 and C16 benzalkonium ions in several com. cleaning products with limits of detection of 20, 25, and 38μg L^-1, resp. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Synthetic Route of C25H46ClN).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) 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.Synthetic Route of C25H46ClN

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