Tag: 200-300

In 2022,Zhao, Bin; Liu, Jianwen; Feng, Renfei; Wang, Lei; Zhang, Jiujun; Luo, Jing-Li; Fu, Xian-Zhu published an article in Small Methods. The title of the article was 《Less-Energy Consumed Hydrogen Evolution Coupled with Electrocatalytic Removal of Ethanolamine Pollutant in Saline Water over Ni@Ni3S2/CNT Nano-Heterostructured Electrocatalysts》.Category: ethers-buliding-blocks The author mentioned the following in the article:

Energy crises, environmental pollution, and freshwater deficiency are critical issues on the planet. Electrolytic hydrogen generation from saline water, particularly from salt-contained hazardous wastewater, is significant to both environment and energy concerns but still challenging due to the high energy cost, severe corrosion, and the absence of competent electrocatalysts. Herein, a novel strategy is proposed for energy-efficient hydrogen production coupled with electro-oxidation removal of ethanolamine pollutant in saline water. To achieve this, an active and durable heterostructured electrocatalyst is developed by in situ growing Ni@Ni3S2 core@shell nanoparticles in cross-linked 3D carbon nanotubes’ (CNTs) network, achieving high dispersibility and metallic property, low packing d., and enriched exposed active sites to facilitate fast electron/mass diffusion. The unique Ni@Ni3S2/CNTs nano-heterostructures are competent for long-term stably electro-oxidizing environmental-unfriendly ethanolamine at a high c.d. of 100 mA cm-2 in saline water, which not only suppresses oxygen and chloride evolution reactions but also decreases the energy consumption to boost hydrogen production Associated with exptl. results, d. functional theory studies indicate that the collaborative adsorption of electrolyte ions and ethanolamine mols. can synergistically modulate the adsorption/desorption properties of catalytic active centers on Ni@Ni3S2/CNTs surface, leading to long-term stabilized electrocatalysis for efficient ethanolamine oxidation removal and less-energy hydrogen simultaneous production in saline water. The results came from multiple reactions, including the reaction of 1,2-Diphenyldisulfane(cas: 882-33-7Category: ethers-buliding-blocks)

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however. Category: ethers-buliding-blocks

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Suo, Xian; Yang, Zhenzhen; Fu, Yuqing; Do-Thanh, Chi-Linh; Chen, Hao; Luo, Huimin; Jiang, De-en; Mahurin, Shannon M.; Xing, Huabin; Dai, Sheng published their research in ChemSusChem in 2021. The article was titled 《CO2 Chemisorption Behavior of Coordination-Derived Phenolate Sorbents》.HPLC of Formula: 33100-27-5 The article contains the following contents:

CO2 chemisorption via C-O bond formation is an efficient methodol. in carbon capture especially using phenolate-based ionic liquids (ILs) as the sorbents to afford carbonate products. However, most of the current IL systems involve alkylphosphonium cations, leading to side reactions via the ylide intermediate pathway. It is important to figure out the CO2 chemisorption behavior of phenolate-derived sorbents using inactive and easily accessible cation counterparts without active protons. Herein, phenolate-based systems were constructed via coordination between alkali metal cations with crown ethers to avoid the participation of active protons in CO2 chemisorption. Reaction pathway study revealed that CO2 uptake could be achieved by O-C bond formation to afford carbonate. CO2 uptake capacity and reaction enthalpy were significantly influenced by the coordination effect, alkali metal types, and alkyl groups on the benzene ring. In the part of experimental materials, we found many familiar compounds, such as 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5HPLC of Formula: 33100-27-5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. HPLC of Formula: 33100-27-5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

《Nickel-Catalyzed Carbon-Sulfur Bond Formation through Couplings of Aryl Iodides and Aryl Ethanethioates》 was published in ChemistrySelect in 2020. These research results belong to Mao, Pu; Sui, Hong-Da; Yuan, Jin-Wei; Xiao, Yong-Mei; Yang, Liang-Ru; Mai, Wen-Peng. Electric Literature of C7H7IO The article mentions the following:

A nickel-catalyzed reductive coupling between aryl iodides 2-R-3-R1-4-R2-C6H2I (R = H, OMe, Cl; R1 = H, Me; R2 = H, F, CF3, Ph, etc.) and aryl ethanethioates 3-R3-4-R4-C6H3XC(O)R5 (X = S, O; R3 = H, F; R4 = H, Me, Cl, OMe, OCF3; R5 = Me, Ph, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl) has been developed to afford diaryl sulfides 2-R-3-R1-4-R2-C6H2SC6H3-3-R3-4-R4. This method provides a novel and practical route to aryl thioetherification and can be effectively applied to electronically diverse aryl iodides without expensive metals such as palladium and ruthenium. In the experiment, the researchers used 1-Iodo-2-methoxybenzene(cas: 529-28-2Electric Literature of C7H7IO)

1-Iodo-2-methoxybenzene(cas: 529-28-2) participates in palladium catalyzed enantioselective Heck arylation of 2,3-dihydrofuran in the presence of chiral ionic liquids containing L-prolinate and L-lactate anions and non-chiral quaternary ammonium cations.Electric Literature of C7H7IO

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

The author of 《Self-Formed Protection Layer on a 3D Lithium Metal Anode for Ultrastable Lithium-Sulfur Batteries》 were Yan, Xinxiu; Zhang, Huan; Huang, Meiling; Qu, Meizhen; Wei, Zhikai. And the article was published in ChemSusChem in 2019. Application of 882-33-7 The author mentioned the following in the article:

Li metal anodes are a key component of high-energy-d. Li-S (Li-S) batteries. However, the issues associated with Li anodes remain unsolved owing to the immature Li anode construction and protection technol., which leads to internal short circuits, poor capacity retention, and low coulombic efficiency for high-S-loading Li-S batteries. Herein, a highly stable 3-dimensional Li C fiber composite (3-dimensional LiCF) anode for high-S-loading Li-S batteries was demonstrated, in which a self-formed hybrid solid-electrolyte protection layer was constructed on a Li metal surface through codeposition of thiophenolate ions and inorganic Li salts by using di-Ph disulfide as a co-additive in the electrolyte. The aromatic components from thiophenolate could improve the stability of the protection layer, and the 3-dimensional structure of the C fiber could effectively buffer the volume effect during Li cycling. A Li-S battery based on a 3-dimensional LiCF anode exhibited excellent cycling stability with an energy efficiency of 89.2% for 100 cycles in terms of a high energy d. of 22.3 mWh cm-2 (10 mAh cm-2 area capacity of Li cycling). This contribution demonstrates versatile and ingenious strategies for the construction of a 3-dimensional Li anode structure and protection layer, providing an effective solution for practical stable Li-S batteries. After reading the article, we found that the author used 1,2-Diphenyldisulfane(cas: 882-33-7Application of 882-33-7)

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however. Application of 882-33-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Safety of Bis(4-methoxyphenyl)amineIn 2019 ,《Introduction of Fluorine Into spiro[fluorene-9,9′-xanthene]-Based Hole Transport Material to Obtain Sensitive-Dopant-Free, High Efficient and Stable Perovskite Solar Cells》 was published in Solar RRL. The article was written by Guo, Kunpeng; Wu, Min; Yang, Shaomin; Wang, Zongtao; Li, Jie; Liang, Xiaozhong; Zhang, Fang; Liu, Zhike; Wang, Zhongqiang. The article contains the following contents:

Despite the substantial development of efficient hole transporting materials (HTMs) for high-performance perovskite solar cells (PSCs), optimization of the HTMs to sensitive-dopant-free HTMs for high efficient PSCs with prominent stability have rarely been reported. Herein, a low-cost fluorinated spiro[fluorene-9,9′-xanthene] based HTM termed 2mF-X59 is designed and synthesized. In comparison with its reported nonfluorinated counterpart X59, 2mF-X59 shows lowered HOMO (HOMO) level, improved hole mobility, and hydrophobicity. Aided by 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ) to further lower the HOMO level of 2mF-X59 and improve its hole transfer, the optimized 2mF-X59 based PSCs show a maximum power conversion efficiency (PCE) of 18.13% without the use of any sensitive-dopants (e.g., lithium salt/4-tert-butylpyridine), which is comparable to the Spiro-OMeTAD based PSCs (18.22%) with sensitive dopants. More importantly, the sensitive-dopant-free 2mF-X59 based PSCs maintain 95% of their initial performance for more than 500 h under air exposure, showing much better long-term stability than control PSCs based on Spiro-OMeTAD with sensitive dopanst. This is the first case that a sensitive-dopant-free HTM is demonstrated in PSCs with a high PCE (>18%) and good stability by optimizing the literature HTM. This work could pave a new way to develop low-cost sensitive-dopant-free HTMs for highly efficient and stable PSCs for practical applications. In the experiment, the researchers used Bis(4-methoxyphenyl)amine(cas: 101-70-2Safety of Bis(4-methoxyphenyl)amine)

Bis(4-methoxyphenyl)amine(cas: 101-70-2) is a diphenylamine derivative used as a chemical additive for cured rubber.Bis(4-methoxyphenyl)amine is highly toxic and may potentially induce chromosome abberation.Safety of Bis(4-methoxyphenyl)amine

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

HPLC of Formula: 882-33-7In 2019 ,《RhCl3·3H2O-Catalyzed Ligand-Enabled Highly Regioselective Thiolation of Acrylic Acids》 was published in ACS Catalysis. The article was written by Liu, Can; Fang, Yi; Wang, Shun-Yi; Ji, Shun-Jun. The article contains the following contents:

The simple inorganic rhodium salt RhCl3·3H2O was used as a catalyst to achieve the thiolation of acrylic acids, with a series of (Z)-alkenyl sulfides being obtained exclusively. It is noteworthy that [Cp*RhCl2]2 was not as efficient as RhCl3·3H2O in this strategy. Furthermore, the products could be transformed conveniently into biol. and pharmacol. useful thioflavones. In the experimental materials used by the author, we found 1,2-Diphenyldisulfane(cas: 882-33-7HPLC of Formula: 882-33-7)

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Ethers do have nonbonding electron pairs on their oxygen atoms, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. HPLC of Formula: 882-33-7 The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Li, Yuwen; Li, Sen; Du, Xin; Gu, Zhongze published an article in 2021. The article was titled 《Disulfide-yne reaction: controlling the reactivity of a surface by light》, and you may find the article in RSC Advances.Electric Literature of C12H10S2 The information in the text is summarized as follows:

In this paper we provide new insight into the disulfide-yne photo reaction, which is similar but different from the well-known thiol-yne photoclick reaction. We show that, unlike the stable product generated from thiol-yne chem., the vinyl dithioether structure obtained from disulfide-yne reaction exhibits unique reactivity with thiols and disulfides, which can be used for surface photochem. to fabricate reactive and dynamic surfaces. The possible mechanism for the unique reactivity of vinyl dithioether structure was discussed. We demonstrated that disulfide-yne reactions are highly compatible with thiol-yne chem., but offer the flexibility and dynamic nature that is lacking in thiol-yne chem., thus could be a good replenishment for the existing thiol-yne toolbox.1,2-Diphenyldisulfane(cas: 882-33-7Electric Literature of C12H10S2) was used in this study.

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.The C-O bonds that comprise simple ethers are strong. They are unreactive toward all but the strongest bases. Although generally of low chemical reactivity, they are more reactive than alkanes. Electric Literature of C12H10S2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In 2019,ChemCatChem included an article by Qi, Xinxin; Lai, Ming; Zhu, Min-Jie; Peng, Jin-Bao; Ying, Jun; Wu, Xiao-Feng. Safety of 1-Iodo-2-methoxybenzene. The article was titled 《1-Arylvinyl formates: A New CO Source and Ketone Source in Carbonylative Synthesis of Chalcone Derivatives》. The information in the text is summarized as follows:

1-Arylvinyl formates as a kind of new CO surrogate was explored for the first time. Most of the known CO precursors usually produced undesired residuals, which were to be removed. In this strategy, after CO release, the in-situ generated acetophenones from 1-arylvinyl formates were successfully applied as a good ketone source in the synthesis of chalcones with benzaldehydes via a palladium-catalyzed reductive carbonylation reaction. A variety of chalcones were isolated in satisfactory to good yields with good substrates compatibilities under mild conditions.1-Iodo-2-methoxybenzene(cas: 529-28-2Safety of 1-Iodo-2-methoxybenzene) was used in this study.

1-Iodo-2-methoxybenzene(cas: 529-28-2) is a useful synthetic intermediate. It can be used in the synthesis of piperidinyl diaminopyrimidines as cyclin-dependent kinase inhibitors with antitumor activity and polysubstituted benzofuran derivatives as novel inhibitors of parasitic growth.Safety of 1-Iodo-2-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Category: ethers-buliding-blocksIn 2019 ,《5-Norbornene-2-carboxylic acid: Another catalytic mediator for Catellani-type reactions》 was published in Tetrahedron. The article was written by Liu, Ze-Shui; Qian, Guangyin; Gao, Qianwen; Wang, Peng; Cheng, Hong-Gang; Hua, Yu; Zhou, Qianghui. The article contains the following contents:

The discovery of inexpensive 5-norbornene-2-carboxylic acid (N4) as a general catalytic mediator (20 mol%) to facilitate ortho C-H activation and the following C-C bond formation of aryl iodides. Firstly, a co-operative catalytic system comprising N4 and palladium/XPhos complex was developed for the novel Catellani/redox-relay Heck cascade to construct tetrahydronaphthalenes e.g., I and indanes e.g., II that contain a quaternary carbon stereogenic center. The striking feature of this work was the avoidance of stoichiometric NBE mediator that were usually required for Catellani-type reactions. Preliminary results demonstrated that N4 could acted as a general catalytic mediator to replace NBE for other Catellani-type reactions, which would undoubtedly inspire future developments in the field of cooperative catalysis. Finally, control experiments indicated that the carboxylic acid moiety of N4 played an essential role in its ability to serve as a superior mediator. The experimental process involved the reaction of 1-Iodo-2-methoxybenzene(cas: 529-28-2Category: ethers-buliding-blocks)

1-Iodo-2-methoxybenzene(cas: 529-28-2) participates in palladium catalyzed enantioselective Heck arylation of 2,3-dihydrofuran in the presence of chiral ionic liquids containing L-prolinate and L-lactate anions and non-chiral quaternary ammonium cations.Category: ethers-buliding-blocks

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Quality Control of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamateIn 2020 ,《Reaction-based amine and alcohol gases detection with triazine ionic liquid materials》 appeared in Molecules. The author of the article were Li, Hsin-Yi; Chu, Yen-Ho. The article conveys some information:

The use of affinity ionic liquids, I and II, for chemoselective detection of amine and alc. gases on a quartz crystal microbalance (QCM) was reported. These detections of gaseous amines and alcs. were achieved by nucleophilic aromatic substitution reactions with the electrophilic 1,3,5-triazine-based affinity ionic liquids, I thin-coated on quartz chips. Starting with inexpensive reagents, bicyclic imidazolium ionic liquids, I and II were readily synthesized in six and four synthetic steps with high isolated yields: 51% and 63%, resp. The QCM platform developed in this work was readily applicable and highly sensitive to low mol. weight amine gases: for isobutylamine gas (a bacterial volatile) at 10 Hz decrease in resonance frequency (i.e., ΔF = -10 Hz), the detectability using affinity ionic liquids, I was 6.3 ppb. Our preliminary investigation on detection of the much less nucleophilic alc. gas by affinity ionic liquids, I was also promising. To our knowledge, no example to date of reports based on nucleophilic aromatic substitution reactions demonstrating sensitive gas detection in these triazine ionic liquids on a QCM was reported. The results came from multiple reactions, including the reaction of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6Quality Control of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate)

tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6) belongs to ethers. Ethers lack the hydroxyl groups of alcohols. Quality Control of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem