Month: November 2022

Combined pretreatment of sugarcane bagasse using alkali and ionic liquid to increase hemicellulose content and xylanase production was written by Rashid, Rozina;Ejaz, Uroosa;Ali, Firdous Imran;Hashmi, Imran Ali;Bari, Ahmed;Liu, Jing;Wang, Li;Fu, Pengcheng;Sohail, Muhammad. And the article was included in BMC Biotechnology.Computed Properties of C25H54ClN The following contents are mentioned in the article:

Multivariate anal. of different chem. pretreatment methods can aid to select the most appropriate strategy to valorize a particular biomass. Results: Amongst methods tested, the pretreatment by using sodium hydroxide in combination with methyltrioctylammonium chloride, an ionic liquid, (NaOH+IL) was the most significant for xylanase production by Bacillus aestuarii UE25. Investigation of optimal levels of five significant variables by adopting Box-Behnken design (BBD) predicted 20 IU mL^-1 of xylanase and exptl., a titer of 17.77 IU mL^-1 was obtained which indicated the validity of the model. The production kinetics showed that volumetric productivity of xylanase was much higher after 24 h (833.33 IU L^-1 h^-1) than after 48 h (567.08 IU L^-1 h^-1). The extracted xylan from SB induced more xylanase in the fermentation medium than pretreated SB or com. purified xylan. NMR, Fourier transform IR spectroscopy and SEM of SB indicated removal of lignin and changes in the structure of SB after NaOH+IL pretreatment and fermentation Conclusion: Combined pretreatment of SB with alkali and methyltrioctylammonium chloride appeared better than other chem. methods for bacterial xylanase production and for the extraction of xylan form SB. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Computed Properties of C25H54ClN).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) 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.Computed Properties of C25H54ClN

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

Solvated Nickel Complexes as Stoichiometric and Catalytic Perfluoroalkylation Agents was written by Shreiber, Scott T.;Vicic, David A.. And the article was included in Angewandte Chemie, International Edition in 2021.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

The acetonitrile-solvated [(MeCN)Ni(C₂F₅)₃]^– was prepared in order to compare and contrast its reactivity with the known [(MeCN)Ni(CF₃)₃]^– towards organic electrophiles. Both [(MeCN)Ni(CF₃)₃]^– and [(MeCN)Ni(C₂F₅)₃]^– successfully react with aryl iodonium and diazonium salts as well as alkynyl iodonium salts to give fluoroalkylated organic products. Electrochem. anal. of [(MeCN)Ni^II(C₂F₅)₃]^– suggests that, upon electro-oxidation to [(MeCN)_nNi^III(C₂F₅)₃], reductive homolysis of a perfluoroethyl radical occurs, with the concomitant formation of [(MeCN)₂Ni^II(C₂F₅)₂]. Catalytic C-H trifluoromethylations of electron-rich arenes were successfully achieved using either [(MeCN)Ni(CF₃)₃]^– or the related [Ni(CF₃)₄]^2-. Stoichiometric reactions of the solvated nickel complexes reveal that “ligandless” nickel is exceptionally capable of serving as reservoir of CF₃ groups under catalytically relevant conditions. 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. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. 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.Category: chlorides-buliding-blocks

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

Improving stability of tear film lipid layer via concerted action of two drug molecules: a biophysical view was written by Eftimov, Petar;Olzynska, Agnieszka;Melcrova, Adela;Georgiev, Georgi As.;Daull, Philippe;Garrigue, Jean-Sebastien;Cwiklik, Lukasz. And the article was included in International Journal of Molecular Sciences in 2020.Synthetic Route of C25H46ClN The following contents are mentioned in the article:

The tear film at the ocular surface is covered by a thin layer of lipids. This oily phase stabilizes the film by decreasing its surface tension and improving its viscoelastic properties. Clin., destabilization and rupture of the tear film are related to dry eye disease and are accompanied by changes in the quality and quantity of tear film lipids. In dry eye, eye drops containing oil-in-water emulsions are used for the supplementation of lipids and surface-active components to the tear film. We explore in detail the biophys. aspects of interactions of sp. surface-active compounds, cetalkonium chloride and poloxamer 188, which are present in oil-in-water emulsions, with tear lipids. The aim is to better understand the macroscopically observed eye drops-tear film interactions by rationalizing them at the mol. level. To this end, we employ a multi-scale approach combining experiments on human meibomian lipid extracts, measurements using synthetic lipid films, and in silico mol. dynamics simulations. By combining these methods, we demonstrate that the studied compounds specifically interact with the tear lipid film enhancing its structure, surfactant properties, and elasticity. The observed effects are cooperative and can be further modulated by material packing at the tear-air interface. 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. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Synthetic Route of C25H46ClN

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

Synthesis, and Molecular Structure Investigations of a New s-Triazine Derivatives Incorporating Pyrazole/Piperidine/Aniline Moieties was written by Shawish, Ihab;Soliman, Saied M.;Haukka, Matti;Dalbahi, Ali;Barakat, Assem;El-Faham, Ayman. And the article was included in Crystals in 2021.Related Products of 2272-40-4 The following contents are mentioned in the article:

In this work, authors synthesized two new s-triazine incorporates pyrazole/piperidine/aniline moieties I (R = H, 4-Br). Mol. structure investigations in the light of X-ray crystallog. combined with Hirshfeld and DFT calculations were presented. Intermol. interactions controlling the mol. packing of 4-(3,5-dimethyl-1H-pyrazol-1-yl)-N-phenyl-6-(piperidin-1-yl)-1,3,5-triazin-2-amine and N-(4-bromophenyl)-4-(3,5-dimethyl-1H-pyrazol-1-yl)-6-(piperidin-1-yl)-1,3,5-triazin-2-amine were analyzed using Hirshfeld calculations The most dominant interactions are the H…H, N…H and H…C contacts in both compounds The N…H and H…C interactions in I (R = H) and the N…H, Br…H and H…H interactions in I (R = 4-Br) are the most important. In addition, DFT calculations were used to compute the mol. structures of I (R = H, 4-Br); then, their electronic properties, as well as the ¹H- and ¹³C-NMR spectra, were predicted. Both compounds are polar where I (R = H) (1.018 Debye) has lower dipole moment than I (R = 4-Br) (4.249 Debye). The NMR chem. shifts were calculated and very good correlations between the calculated and exptl. data were obtained (R² = 0.938-0.997). This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Related Products of 2272-40-4).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) 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. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Related Products of 2272-40-4

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

Photoinduction of palladium single atoms supported on defect-containing γ-AlOOH nanoleaf for efficient trans-stilbene epoxidation was written by Li, Zhijun;Li, Honghong;Yuan, Dundong;Leng, Leipeng;Zhang, Mingyang;Di, Minghui;Horton, J. Hugh;Wang, Jun;Sun, Litao;Sun, Weiwei. And the article was included in Chemical Engineering Journal (Amsterdam, Netherlands) in 2022.Formula: Cl4Na2Pd The following contents are mentioned in the article:

Exploring the interaction between metal and support is of great importance in enhancing the catalytic performance and deepening the mechanistic understanding of single atom catalysis. Here we describe a photoinduction method to construct atomically dispersed palladium atoms supported over defect-containing boehmite (γ-AlOOH) nanoleaf with a palladium loading of 0.32 wt%. The existence of singly dispersed palladium atoms is confirmed by spherical aberration correction electron microscopy, extended X-ray absorption fine structure measurement, and CO-absorbed diffuse reflectance IR Fourier transform spectroscopy. This catalyst shows excellent catalytic efficiency in trans-stilbene epoxidation to yield trans-stilbene oxide (TOF: 416 h^-1; conversion: 84 %; selectivity: 99 %), along with excellent recyclability and scalability. In addition, various aromatic olefins were successfully transformed into the corresponding epoxides with high selectivity and excellent yield. DFT study further reveals that the high catalytic activity originates from under-coordinated single palladium atoms in the defect-containing γ-AlOOH in a unique coordination environment. This lays the foundation for the facile creation of single atom catalysts and sheds light on the possibility for scale-up production This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Formula: Cl4Na2Pd).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) 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. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Formula: Cl4Na2Pd

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

Hygroscopic holey graphene aerogel fibers enable highly efficient moisture capture, heat allocation and microwave absorption was written by Hou, Yinglai;Sheng, Zhizhi;Fu, Chen;Kong, Jie;Zhang, Xuetong. And the article was included in Nature Communications in 2022.Application In Synthesis of Lithium chloride The following contents are mentioned in the article:

Aerogel fibers have been recognized as the rising star in the fields of thermal insulation and wearable textiles. Yet, the lack of functionalization in aerogel fibers limits their applications. Herein, we report hygroscopic holey graphene aerogel fibers (LiCl@HGAFs) with integrated functionalities of highly efficient moisture capture, heat allocation, and microwave absorption. LiCl@HGAFs realize the water sorption capacity over 4.15 g g^-1, due to the high surface area and high water uptake kinetics. Moreover, the sorbent can be regenerated through both photo-thermal and electro-thermal approaches. Along with the water sorption and desorption, LiCl@HGAFs experience an efficient heat transfer process, with a heat storage capacity of 6.93 kJ g^-1. The coefficient of performance in the heating and cooling mode can reach 1.72 and 0.70, resp. Notably, with the entrapped water, LiCl@HGAFs exhibit broad microwave absorption with a bandwidth of 9.69 GHz, good impedance matching, and a high attenuation constant of 585. In light of these findings, the multifunctional LiCl@HGAFs open an avenue for applications in water harvest, heat allocation, and microwave absorption. This strategy also suggests the possibility to functionalize aerogel fibers towards even broader applications. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Application In Synthesis of Lithium chloride).

Lithium chloride (cas: 7447-41-8) 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.Application In Synthesis of Lithium chloride

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

Synthesis, characterization and photoluminescence properties of an organic-inorganic hybrid monolacunary Keggin-type polyoxotungstate was written by Wang, Ke;Feng, Shuo;Ma, Pengtao. And the article was included in Inorganic Chemistry Communications in 2021.Synthetic Route of C4H12ClN The following contents are mentioned in the article:

An organic-inorganic hybrid lanthanide-based polyoxometalate (Ln-POM) [N(CH₃)₄]₃K₂[Tb(C₇H₅O₃)(H₂O)₂(α-PW₁₁O₃₉)]·10H₂O (1) was synthesized and further characterized by single crystal x-ray diffraction anal., elemental analyses, Inductive Coupled Plasma Emission Spectrometer (ICP), powder x-ray diffraction (PXRD), Fourier transform IR (FTIR) spectroscopy, solid-state UV/vis spectrum and thermogravimetric analyses (TGA). Single-crystal x-ray diffraction analyses indicated that both organic ligand and [α-PW₁₁O₃₉]^7- group directly bind Tb³⁺ center for the formation of polyanion in 1. The photoluminescence property of 1 was investigated at room temperature, and the results showed that compound 1 exhibits lower energy transfer efficiency from POM fragment and organic ligand to Tb³⁺ ion. Furthermore, time-resolved emission spectroscopy indicates that the photoexcitation O → M ligand to metal charge transfer (LMCT) of POM fragments and organic ligand can sensitize the Tb³⁺ ions through intramol. energy transitions in 1. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Synthetic Route of C4H12ClN).

Tetramethylammonium chloride (cas: 75-57-0) 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. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Synthetic Route of C4H12ClN

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

Synthesis of α-cyano and α-sulfonyl cyclic ethers via intramolecular reactions of peroxides with sulfone- and nitrile-stabilized carbanions was written by Horn, Alissa;Dussault, Patrick H.. And the article was included in Journal of Organic Chemistry in 2019.HPLC of Formula: 6294-17-3 The following contents are mentioned in the article:

The intramol. reaction of carbon nucleophiles with oxygen-centered electrophiles has been little explored outside of nucleophilic epoxidation Synthesis of sulfonyl- and cyano-substituted oxacycles via intramol. reaction of sulfone- and nitrile-stabilized carbanions with dialkyl peroxides, triethylsilyl/alkyl peroxides, and monoperoxyacetals were reported. The cyclizations are successfully applied to synthesis of oxetanes, tetrahydrofurans, and tetrahydropyrans but fail for oxepanes. Cyclizations involving the relatively stabilized anion derived from a benzylic nitrile proceed in high yield for a variety of peroxides, including those in which the electrophilic oxygen is formally iso-Bu or neopentyl. Corresponding cyclizations of an alkanenitrile are successful with both dialkyl and alkyl silyl peroxides but demonstrate much greater variability in yield. Reactions of sulfone-containing substrates are successful only with dialkyl peroxides. The success of reactions appears to be strongly influenced by the rate of peroxide decomposition, which appears to be highest for reactions involving poorly stabilized anions. The significant variation in diastereoselectivity observed for different classes of peroxide on a common framework suggests the possibility of substrate-dependent reaction mechanisms. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3HPLC of Formula: 6294-17-3).

1-Bromo-6-chlorohexane (cas: 6294-17-3) 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. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).HPLC of Formula: 6294-17-3

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

Portable wireless humidity sensor based on hyperbranched polysiloxane for multifunctional non-contact sensing was written by Yang, Yimeng;Li, Xifang;Qi, Duo;Zhao, Chengji. And the article was included in Sensors and Actuators, B: Chemical in 2022.Reference of 7447-41-8 The following contents are mentioned in the article:

Non-contact sensing is an immediate research focus as a much greener and hygienic human-machine interface. Nonetheless, much research remains to be done on fast and stable non-contact sensors based on humidity signals. Hence, in this paper, hyperbranched sulfonated polysiloxane (HPS) with carboxyl groups at the end was synthesized by polycondensation reaction. The resulting polymer was compounded with LiCl and fabricated into humidity sensors. Benefiting from the tailored hydrophilicity/hydrophobicity of the material, flexible siloxane backbones and ionized LiCl, the sensor exhibited five orders of magnitude impedance changes over a wide humidity test range (11-98% RH) with rapid response (1-2 s) and small humidity hysteresis (3% RH). The results of continuous cyclic test confirmed the good reproducibility and stability of the material. Moreover, the sensor was able to distinguish and respond to fingers at different distances, respirations with altered frequencies and various commands. By integrating humidity sensors into the circuit, a low-cost, portable and wireless non-contact monitoring device was developed. The detector enables real-time display of data on a cell phone, which is of great potential value for non-contact distance detection, command recognition and respiration monitoring. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Reference of 7447-41-8).

Lithium chloride (cas: 7447-41-8) 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. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Reference of 7447-41-8

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

Mitochondrial-targeted near-infrared fluorescence probe for selective detection of fluoride ions in living cells was written by Xu, Xiaobo;Chen, Wen;Yang, Mei;Liu, Xian-Jun;Wang, Fenglin;Yu, Ru-Qin;Jiang, Jian-Hui. And the article was included in Talanta in 2019.Product Details of 95-88-5 The following contents are mentioned in the article:

Fluoride ions (F^–), as a strongest electron withdrawing anion of the smallest size, have played an indispensable role in biol. systems. Here a mitochondria-targeted near-IR (NIR) fluorescent probe (Mito-FP) is developed for selective detection of F^– in living cells. Mito-FP is designed using a NIR hemicyanine as a fluorophore and tert-butyldimethylsilyl (TBDMS) as a recognition site which is linked to the fluorophore via a 4-hydroxylbenzyl alc. self-immolative linker. Mito-FP is essentially nonfluorescent. F^– can specifically cleave the Si-O bond which triggers the elimination of the quinone methide intermediate and generates the initial NIR hemicyanine fluorophore with distinct intramol. charge transfer and activated fluorescence signal. The Mito-FP probe is responsive to the concentrations of F^– in the range of 10-120μM with an estimated limit of detection of 3.2μM. Mito-FP also exhibits high selectivity toward F^– with good stability in the physiol. pH conditions. Mito-FP is successfully introduced to detect and image F^– in HeLa cells. Moreover, Mito-FP is also demonstrated to exhibit excellent mitochondrial-targeting ability. This NIR fluorescence probe could provide a useful tool for studying F^– in mitochondria. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Product Details of 95-88-5).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. 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.Product Details of 95-88-5

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