Tag: 200-300

Poly(N-[4H-1,2,4-triazol-4-yl]acrylamide) with different ratio of poly(vinyl chloride) composite membrane for liquid phase sensing of alcohol was written by Mahato, Manmatha;Ghosh, Alokesh;Roy, Hena;Bhattacharyya, Nabarun;Adhikari, Basudam. And the article was included in Journal of Applied Polymer Science in 2017.Synthetic Route of C13H24N2O This article mentions the following:

Functionalized polymer membranes have been used as sensor materials for fabrication of electronic tongue. Here, the authors report the synthesis and characterization of a novel poly(N-[4H-1,2,4-triazol-4-yl]acrylamide) (PNTA) for liquid phase aliphatic alc. sensing as membranes prepared after blending with poly(vinyl chloride) (PVC). Three PNTA-PVC based membranes were prepared for sensing of six aliphatic alcs. Polymer membranes were characterized by spectroscopic techniques. Polar groups on PNTA mols. contribute to the alc. sensing characteristics. The membrane elec. potential, generated by the interaction between membrane surface and aqueous aliphatic alcs., was monitored with the developed multi-channel electrode based prototype sensing system (MEBPSS). The polymer membranes showed distinct and repeatable response patterns toward different aliphatic alcs. Among them PNTA-PVC12 membrane showed maximum discrimination ability due to the PNTA mols. on the membrane surface with highest charge d. as ascertained from field emission scanning electron microscopic studies. In the experiment, the researchers used many compounds, for example, 1,3-Dicyclohexylurea (cas: 2387-23-7Synthetic Route of C13H24N2O).

1,3-Dicyclohexylurea (cas: 2387-23-7) belongs to amides. Compared to amines, amides are very weak bases and do not have clearly defined acid–base properties in water. On the other hand, amides are much stronger bases than esters, aldehydes, and ketones. As a result of interactions such as these, the water solubility of amides is greater than that of corresponding hydrocarbons. These hydrogen bonds are also have an important role in the secondary structure of proteins.Synthetic Route of C13H24N2O

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Non-target screening analysis of river water as compound-related base for monitoring measures was written by Schwarzbauer, Jan;Ricking, Mathias. And the article was included in Environmental Science and Pollution Research in 2010.Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) This article mentions the following:

Building up a comprehensive accurate monitoring program requires the knowledge on the contamination in principal, complemented by detailed information on individual contaminants. The selection of pollutants to be considered in monitoring actions is based dominantly on the information available about their environmental relevance (e.g., persistence, bioaccumulation potential, toxicol. and ecotoxicol. properties) and their occurrence within the affected environmental system. Therefore, this study focused on the identification of organic contaminants in selected German and European rivers to demonstrate the usefulness of a screening approach as complementary base for the compound selection process within monitoring activities. Gas chromatog.-mass spectrometry-based screening analyses were performed on five and six samples from German and European rivers, resp. Identification of individual contaminants was based on the investigation of mass spectral and gas chromatog. properties compared with databases and reference materials. This study summarized the results of non-target screening analyses applied to river water samples and focused dominantly on, so far, unnoticed organic contaminants. Numerous compounds have been identified belonging to the groups of pharmaceuticals, tech. additives, pesticides, personal care products, and oxygen-, nitrogen-, and sulfur-containing compounds of obviously anthropogenic origin. They are discussed in terms of their structural properties, their possible application or usage, and the environmental information available so far. Generally, two different groups of compounds have been differentiated that might contribute to potential monitoring programs. Firstly, more specific contaminants characterizing the individual riverine systems have been depicted (e.g., 4-chloro-2-(trifluoromethyl)aniline, di-iso-propylurea). The consideration of these substances in monitoring analyses to be applied to the corresponding catchment areas is recommended in order to monitor the real state of pollution. Secondly, contaminants have been introduced that appeared with higher multiplicity throughout the different river systems (e.g., TMDD, TXIB). Since these compounds tend to obviously have an elevated environmental stability accompanied by a widespread distribution, it is recommended to consider them in international high-scale monitoring programs. For monitoring purposes, a fundamental knowledge on the diversity of pollutants is an important precondition, which can be supported by screening analyses. Obviously, numerous organic contaminants have been neglected so far in environmental studies on river water, comprising also investigation on potential harmful effects and, therefore, their implementation in monitoring activities has been hindered. Therefore, based on the results of this study, screening analyses should be established as principle tools to improve and complement the substance spectra for monitoring purposes. Secondly, scientific efforts should be strengthened to expand our knowledge on actually appearing organic contaminants in riverine systems. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)).

N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. Amides include many other important biological compounds, as well as many drugs like paracetamol, penicillin and LSD. Low-molecular-weight amides, such as dimethylformamide, are common solvents. Amides can be freed from solvent or water by drying below their melting points. These purifications can also be used for sulfonamides and acid hydrazides.Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Indirect reduction of CO₂ and recycling of polymers by manganese-catalyzed transfer hydrogenation of amides, carbamates, urea derivatives and polyurethanes was written by Liu, Xin;Werner, Thomas. And the article was included in Chemical Science in 2021.COA of Formula: C13H24N2O This article mentions the following:

A manganese pincer complex as a versatile catalyst for the transfer hydrogenation of amides, carbamates, urea derivatives and even polyurethanes leading to the corresponding alcs., amines and methanol as products were reported. Since these compound classes can be prepared using CO₂ as a C1 building block the reported reaction represents an approach to the indirect reduction of CO₂. Notably, these are the first examples on the reduction of carbamates and urea derivatives as well as on the C-N bond cleavage in amides by transfer hydrogenation. The general applicability of this methodol. is highlighted by the successful reduction of 12 urea derivatives, 26 carbamates and 11 amides. The corresponding amines, alcs. and methanol were obtained in good to excellent yields up to 97%. Furthermore, polyurethanes were successfully converted which represents a viable strategy towards a circular economy. Based on control experiments and the observed intermediates a feasible mechanism was proposed. In the experiment, the researchers used many compounds, for example, 1,3-Dicyclohexylurea (cas: 2387-23-7COA of Formula: C13H24N2O).

1,3-Dicyclohexylurea (cas: 2387-23-7) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Amides can be freed from solvent or water by drying below their melting points. These purifications can also be used for sulfonamides and acid hydrazides.COA of Formula: C13H24N2O

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Low temperature bleaching of double protein fiber with hydrogen peroxide/tetraacetylethylenediamine was written by Cao, Ji-liang;Wang, Hong;Bian, Ya-min;Guo, Xue-jian. And the article was included in Yinran Zhuji in 2014.Related Products of 10543-57-4 This article mentions the following:

Tetraacetylethylenedianime (TAED) was used as an activator for the hydrogen peroxide (H₂O₂) bleaching of soybean protein/casein/polyvinyl alc. blend fibers (double protein fibers). The influences of dosage of H₂O₂, sodium silicate and sodium carbonate, temperature and time on the whiteness and yellowness of bleached fibers were investigated under the condition of n(H₂O₂):n(TAED) = 2:1. The dye uptake of Acid Blue 5R on bleached fibers was also measured through dyeing experiment It was found that the conventional hydrogen peroxide bleaching method was not fit for bleaching of double protein fibers. The hydrogen peroxide/TAED bleaching with 12 g/L of 30% H₂O₂, 5 g/L of sodium silicate, under 70°C for 60 min was fit for bleaching of double protein fibers, and the whiteness of bleached fibers was high and the dye uptake of bleached fibers was good. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Related Products of 10543-57-4).

N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. As a result of interactions such as these, the water solubility of amides is greater than that of corresponding hydrocarbons. These hydrogen bonds are also have an important role in the secondary structure of proteins.Related Products of 10543-57-4

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Reaction of hydrogen bromide with N-p-tolyl- and N-p-tosyl-1,4-benzoquinone monoimines was written by Toropin, N. V.;Burmistrov, K. S.;Burmistrov, S. I.;Zaichenko, N. L.. And the article was included in Zhurnal Organicheskoi Khimii in 1986.Computed Properties of C13H13NO3S This article mentions the following:

Oxybromination of 6 benzoquinone imines I (R = 4-tolyl, 2,4-BrMeC₆H₃, 4-tosyl; R¹-R³ = H, Br; R⁴ = H) gave 7-80% I (same R; R¹-R⁴ = H, Br). Brominating 4-RNHC₆H₄OH (R = 4-tolyl, 4-tosyl) followed by oxidation gave I (same R; R¹-R³ = H, Br; R⁴ = H). In the experiment, the researchers used many compounds, for example, N-(4-Hydroxyphenyl)-4-methylbenzenesulfonamide (cas: 1146-43-6Computed Properties of C13H13NO3S).

N-(4-Hydroxyphenyl)-4-methylbenzenesulfonamide (cas: 1146-43-6) belongs to amides. The solubilities of amides and esters are roughly comparable. Typically amides are less soluble than comparable amines and carboxylic acids since these compounds can both donate and accept hydrogen bonds. Tertiary amides, with the important exception of N,N-dimethylformamide, exhibit low solubility in water. Amides can be recrystallised from large quantities of water, ethanol, ethanol/ether, aqueous ethanol, chloroform/toluene, chloroform or acetic acid. The likely impurities are the parent acids or the alkyl esters from which they have been made. The former can be removed by thorough washing with aqueous ammonia followed by recrystallisation, whereas elimination of the latter is by trituration or recrystallisation from an organic solvent.Computed Properties of C13H13NO3S

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

A high-precision sampling scheme to assess persistence and transport characteristics of micropollutants in rivers was written by Schwientek, Marc;Guillet, Gaelle;Ruegner, Hermann;Kuch, Bertram;Grathwohl, Peter. And the article was included in Science of the Total Environment in 2016.Recommanded Product: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) This article mentions the following:

Increasing numbers of organic micropollutants are emitted into rivers via municipal wastewaters. Due to their persistence many pollutants pass wastewater treatment plants without substantial removal. Transport and fate of pollutants in receiving waters and export to downstream ecosystems is not well understood. In particular, a better knowledge of processes governing their environmental behavior is needed. Although a lot of data are available concerning the ubiquitous presence of micropollutants in rivers, accurate data on transport and removal rates are lacking. Here, a mass balance approach is presented, which is based on the Lagrangian sampling scheme, but extended to account for precise transport velocities and mixing along river stretches. The calculated mass balances allow accurate quantification of pollutants’ reactivity along river segments. This is demonstrated for representative members of important groups of micropollutants, e.g., pharmaceuticals, musk fragrances, flame retardants, and pesticides. A model-aided anal. of the measured data series gives insight into the temporal dynamics of removal processes. The occurrence of different removal mechanisms such as photooxidation, microbial degradation, and volatilization is discussed. The results demonstrate, that removal processes are highly variable in time and space and this has to be considered for future studies. The high precision sampling scheme presented could be a powerful tool for quantifying removal processes under different boundary conditions and in river segments with contrasting properties. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Recommanded Product: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)).

N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. Compared to amines, amides are very weak bases and do not have clearly defined acid–base properties in water. On the other hand, amides are much stronger bases than esters, aldehydes, and ketones. Amides are stable compounds. The lower-melting members (such as acetamide) can be readily purified by fractional distillation. Most amides are solids which have low solubilities in water.Recommanded Product: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Structure characterization of low-temperature peroxide activator TAED and its application was written by Li, Qing;Tang, Ren-cheng;Shen, Zi-xiang. And the article was included in Yinran in 2010.Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) This article mentions the following:

Structures of several com. low-temperature peroxide bleaching activators TAED (tetraacetylethylenediamine) were characterized by WAXD, FT-IR and UV spectra, and the solubility of a high purity TAED powder was determined Peroxide bleaching was carried out on different textiles with TAED activation system. Results showed that there were strong absorption bands at 1,706 cm^-1 and 1,680 cm^-1 attributed to stretch vibration of amide I C=O and strong absorption bands at 1,270 cm^-1 and 1,193 cm^-1 attributed to stretch vibration of amide III C-N in FT-IR spectra of high purity TAED. There was strong absorption band at 215 nm in all UV spectra of tested TAED solutions, so the good correlation between the absorbance intensity and concentration could be used to determine the concentration of TAED solution The solubility of high purity TAED powder was 17 g/L at 70°C. Different textiles bleached with hydrogen peroxide/TAED activation system could gain satisfactory bleaching effects with good whiteness, high efficiency and energy saving, and the TAED formulation had no influence on bleaching effects. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)).

N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. The amide group is called a peptide bond when it is part of the main chain of a protein, and an isopeptide bond when it occurs in a side chain, such as in the amino acids asparagine and glutamine. Amides can be freed from solvent or water by drying below their melting points. These purifications can also be used for sulfonamides and acid hydrazides.Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Active and strippable PVA/Borax/NaBO₃ hydrogel for effective containment and decontamination of chemical warfare agents was written by Redy Keisar, Orit;Nahum, Victoria;Yehezkel, Lea;Marcovitch, Itzhak;Columbus, Ishay;Fridkin, Gil;Chen, Ravit. And the article was included in ACS Omega in 2021.Application In Synthesis of N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) This article mentions the following:

Active gels present unique potential for the decontamination of chem. warfare agents (CWAs) as they strongly adhere to surfaces, thus allowing prolonged decontamination time. Herein, we present a decontamination hydrogel based on polyvinyl alc./borax, which contains sodium perborate (NaBO₃), as an in situ source of the active ingredient hydrogen peroxide. Developed as a binary formulation, this gel instantly forms and effectively sticks when sprayed on various matrixes, including porous and vertically positioned matrixes. The gel efficiently detoxified the CWAs sarin (GB), O-Et S-2-(diisopropylamino)ethyl methylphosphonothioate (VX), and sulfur mustard (HD) in test tubes (2μL CWA/0.5 mL gel) to provide nontoxic products with reaction half-lives of <3, 45 and 113 min, resp. The gel was also shown to efficiently decontaminate surfaces contaminated with VX (5-7 mg, 8-12 mL of gel, i.e., >99%) and to prevent GB evaporation, as proven by laboratory wind tunnel experiments The universal decontamination abilities of this mild hydrogel, as well as its facile application and removal processes suggest that it holds high potential for future development as a new CWA decontamination tool. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Application In Synthesis of N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)).

N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. Amides can be viewed as a derivative of a carboxylic acid RC(=O)OH with the hydroxyl group –OH replaced by an amine group −NR′R″; or, equivalently, an acyl (alkanoyl) group RC(=O)− joined to an amine group. Amides are not in general accessible by the direct condensation of amines with carboxylic acids for two reasons: first, both components are readily deactivated by a transfer of a proton from the acid to the amine and second, the hydroxy unit on the carbonyl of the acid is a relatively poor leaving group. Nevertheless, the formation of five- and six-membered rings is often surprisingly simple provided that other factors can be brought into play to assist in the condensation.Application In Synthesis of N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Visible-Light-Promoted Carboimination of Unactivated Alkenes for the Synthesis of Densely Functionalized Pyrroline Derivatives was written by Cai, Sai-Hu;Xie, Jia-Hao;Song, Shengjin;Ye, Lu;Feng, Chao;Loh, Teck-Peng. And the article was included in ACS Catalysis in 2016.Quality Control of 4-Bromo-N-methoxy-N-methylbenzamide This article mentions the following:

An efficient strategy which integrates visible-light-induced iminyl-radical formation with carboimination of unactivated alkenes has been developed for the easy access of densely functionalized pyrroline derivatives With fac-[Ir(ppy)₃] as photoredox catalyst, the acyl oximes were converted into iminyl radical intermediates by one electron reduction, and evolve through a cascade of intramol. cyclization and intermol. carbon radical trapping to give the functionalized pyrrolines. The utilization of silyl enol ethers as coupling partners not only allows the introduction of synthetically useful ketone functionalities but also renders catalyst regeneration without any external reductants. This protocol is characterized by its mild reaction conditions and the tolerance of a broad range of functionalities. In the experiment, the researchers used many compounds, for example, 4-Bromo-N-methoxy-N-methylbenzamide (cas: 192436-83-2Quality Control of 4-Bromo-N-methoxy-N-methylbenzamide).

4-Bromo-N-methoxy-N-methylbenzamide (cas: 192436-83-2) belongs to amides. Compared to amines, amides are very weak bases and do not have clearly defined acid–base properties in water. On the other hand, amides are much stronger bases than esters, aldehydes, and ketones. Amides can be freed from solvent or water by drying below their melting points. These purifications can also be used for sulfonamides and acid hydrazides.Quality Control of 4-Bromo-N-methoxy-N-methylbenzamide

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Research on low-temperature desizing-scouring-hydroperoxide-bleaching in one bath process for pure cotton fabric with biological enzyme was written by Xu, Yi;Gao, Bing-sheng. And the article was included in Ranzheng Jishu in 2015.Application In Synthesis of N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) This article mentions the following:

Typical amylase 2000L, cellulase CR and pectase L were optimized and the biocompatibility and synergistic effect were investigated. Process conditions of various enzymes mixtures and complex phosphoesterasum were discussed to obtain optimized process of complex phosphoesterasum in desizing and scouring treatments. Desizing, scouring and bleaching production process in one bath was realized by combining biol. enzyme compound technol. with low temperature oxygen bleaching process. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Application In Synthesis of N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)).

N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. The solubilities of amides and esters are roughly comparable. Typically amides are less soluble than comparable amines and carboxylic acids since these compounds can both donate and accept hydrogen bonds. Tertiary amides, with the important exception of N,N-dimethylformamide, exhibit low solubility in water. In simple aromatic amides, fragmentation occurs on both sides of the carbonyl group. If a hydrogen is available in N-substituted aromatic amides, it tends to migrate and form an aromatic amine and the loss of a ketene.Application In Synthesis of N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics