Category: amides-buliding-blocks

On December 20, 2021, Zhang, Di; Dong, Shengkun; Zhang, Aihong; Chen, Li; Yu, Zhenxun; Wang, Qi; Chu, Wenhai published an article.Reference of 2-Chloroacetamide The title of the article was Catalytic hydrolysis: A novel role of zero-valent iron in haloacetonitrile degradation and transformation in unbuffered systems. And the article contained the following:

Efforts to remove highly toxic haloacetonitriles (HANs) is an important step to reduce health risks associated with disinfection by product exposure. Zero valent iron (ZVI) is a versatile material, whose reductant, sorbent and coagulant role has been well understood. However, their catalytic role is less known. In this study, the degradation and transformation of HANs in ZVI system were investigated. Significant decreases of the four HANs in ZVI system were observed, and haloacetamides and haloacetic acids (hydrolysis products of HANs) were the dominant transformation products of HANs. However dehalogenated HANs, Fe (II) and Fe (III) were rarely detected after reaction, indicating that the ZVI acted as a catalyst to promote the hydrolysis of HANs, rather than other previously reported causes (dehalogenation or redox reaction). The HAN degradation rates were dramatically affected by the initial pH, ZVI doses and initial HAN concentration Kinetic anal. indicated that HAN removal was enhanced with the increase of initial pH (5-9), ZVI doses (1-10 g/L), and initial HAN concentration (25-200μg/L). ZVI induced the transformation of HANs to haloacetamides, haloacetic acids and other de-halogenated compounds, which reduced the cytotoxicity and genotoxicity by 88% and 85%, resp. This study helped to understand the fate of HAN during the transmission in cast iron pipes, and provided a theor. foundation for future HAN control and monitoring efforts. The experimental process involved the reaction of 2-Chloroacetamide(cas: 79-07-2).Reference of 2-Chloroacetamide

The Article related to haloacetonitrile degradation catalytic hydrolysis iron, catalytic hydrolysis, dbp control, disinfection by-products, zero-valent iron, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Reference of 2-Chloroacetamide

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

Amaral, Miriam C. S.; Moravia, Wagner G.; Lange, Lisete C. published an article in 2017, the title of the article was Characterization of residual organic compounds of aerobic degradation of landfill leachate.Synthetic Route of 685-91-6 And the article contains the following content:

The purpose of this article is to characterize and compare the residual COD of raw landfill leachate and its low and high mol. weight fractions before and after aerobic degradation process. The low and high mol. weight fractions (<10 kDa and >10 kDa, resp.) were obtained by the use of an ultrafiltration cell. Samples of the fractions with mol. weights 10 kDa, as well as the raw leachate, were characterized in terms of COD, protein, carbohydrate and lipid concentration and by biodegradability test. The compound identification of all samples was carried out using gas chromatog. coupled with mass spectrometry (GC/MS). The results show that the landfill leachate studied is constituted of approx. 60% of compounds with mol. weight <10 kDa. Approx. 80% of the compounds identified in the leachate had been degraded. This is an indication that most of the compounds that constitute the significant fraction of residual COD correspond to intermediate products and products of condensation of affluent compounds or had been generated during the degradation (SMP). Similar compounds were identified in all effluents of the degradation assay, suggesting the presence of SMP. These compounds, predominantly aliphatic and esters, are characterized by high mol. weight and probable refractory nature. The experimental process involved the reaction of N,N-Diethylacetamide(cas: 685-91-6).Synthetic Route of 685-91-6

The Article related to residual organic compound aerobic degradation landfill leachate, compounds identifications, smp, leachate, residual cod, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Synthetic Route of 685-91-6

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

Wu, Chenggui; Cheng, Hong-Gang; Chen, Ruiming; Chen, Han; Liu, Ze-Shui; Zhang, Jingyang; Zhang, Yuming; Zhu, Yuxin; Geng, Zhi; Zhou, Qianghui published an article in 2018, the title of the article was Convergent syntheses of 2,3-dihydrobenzofurans via a Catellani strategy.COA of Formula: C11H9NO3 And the article contains the following content:

A cooperative catalytic system comprising a Pd/XPhos complex and a potassium salt of 5-norbornene-2-carboxylic acid to promote the annulation between aryl iodides and epoxides was developed, thereby providing highly convergent access to valuable 2,3-dihydrobenzofuran (DHBF) scaffolds. The unique potassium salt of the inexpensive 5-norbornene-2-carboxylic acid serves as a highly efficient catalytic mediator (10 mol%), which leads to fewer side reactions. The salient features of the reaction include its broad substrate scope (with respect to both aryl iodides and epoxides), its high atom economy and good chemo-selectivity. Furthermore, no extra base is needed for the process. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).COA of Formula: C11H9NO3

The Article related to dihydrobenzofuran preparation, aryl iodide epoxide annulation palladium norbornene carboxylic acid catalyst, Heterocyclic Compounds (One Hetero Atom): Areno- and Diarenofurans and other aspects.COA of Formula: C11H9NO3

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

On January 7, 2020, Lou, Yao-Yin; Hapiot, Philippe; Floner, Didier; Fourcade, Florence; Amrane, Abdeltif; Geneste, Florence published an article.Related Products of 79-07-2 The title of the article was Efficient Dechlorination of α-Halocarbonyl and α-Haloallyl Pollutants by Electroreduction on Bismuth. And the article contained the following:

The electrocatalytic activity of bismuth considered as a low-cost and green electrode material was studied in reductive dechlorination processes. Cyclic voltammetry analyses showed that the Bi electrode exhibited a high catalytic activity to reduce alachlor, a chlorinated herbicide, in the aqueous medium at different pH values. Bulk electrolyzes were performed at different potentials and pH values. Alachlor was reduced in deschloroalachlor, its dechlorinated derivative, with a high selectivity (96%) and a current efficiency of 48%. The reductive dechlorination of other chlorinated compounds with an activated carbon atom was then studied, showing that the bismuth electrode catalyzed the electroreduction of chloroacetamides, α-halocarbonyl, and α-haloallyl pollutants. Cyclic voltammetry experiments allowed us to propose a mechanism explaining the high catalytic activity of bismuth to reduce these families of compounds The experimental process involved the reaction of 2-Chloroacetamide(cas: 79-07-2).Related Products of 79-07-2

The Article related to bismuth electrocatalytic reduction dechlorination organohalogen pollutant wastewater, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Related Products of 79-07-2

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

On July 8, 2022, Yang, Lei; Wu, Xiaona; Chen, Xiaoyu; Chen, Fei; Zheng, Xiaona; Song, Qinan; Liu, Xiang; Li, Miao published an article.COA of Formula: C8H10N2O3S The title of the article was Synergistic Removal of Nutrient Pollutants and Pharmaceutical and Personal Care Products (PPCPs) from Contaminated Groundwater: Macro- and Microelements and Microorganisms. And the article contained the following:

The synergistic removal performance of nutrient pollutants and pharmaceutical and personal care products (PPCPs) from contaminated groundwater, and the biogeochem. interactions of macro- and microelements-contaminants-microorganisms were further studied. The electrolysis-zeolite/basalt system proved to achieve better synergistic removal performance than all other purification systems considered, reaching average removal efficiencies of 85.8% for nutrient pollutants and 74.7% for PPCPs. Electrolysis not only enhanced the abundance and distribution of MOB and DNB, but also promoted the production of microelements Fe3+ (0.1 ± 0.1 mg/L) and Zn2+ (0.3 ± 0.3 mg/L). Macroelements Ca2+ and Mg2+ increased by 27.8 ± 2.7 and 16.5 ± 9.6 mg/L, resp., which significantly stimulated the activities of function microbials. Microelements Fe3+ exchanged from zeolite, Mn2+ from basalt, and Cu2+ from groundwater itself were crucial for enzyme activity. Meanwhile, Mn2+ was co-regulated by oxidation-reduction processes and ion-exchange strength. Thus, the electrolysis-zeolite/basalt system is a promising technol. for synergistic nutrient pollutant and PPCP removal from contaminated groundwater, especially in dispersive water supplied in the countryside of China. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).COA of Formula: C8H10N2O3S

The Article related to microelement microorganism synergistic removal nutrient groundwater pollutant, Waste Treatment and Disposal: Physical Treatment Of Aqueous Wastes and other aspects.COA of Formula: C8H10N2O3S

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

On March 15, 2022, Li, Xitong; Liang, Kaiming; Yang, Bo; Xiao, Ke; Duan, Huabo; Song, Guangqing; Zhao, Huazhang published an article.Formula: C8H10N2O3S The title of the article was Preparation and application of a targeted magnetically separated catalyst for sulfonamides degradation based on molecular dynamics selection and mechanism analysis. And the article contained the following:

As refractory pollutants, sulfonamides (SAs) are widely distributed in the aquatic environment. The existing methods for advanced oxidation used to remove SAs from water received wide attention. In this study, surface mol. imprinting technol. has been used to prepare targeted catalysts that can be rapidly separated The results showed that molecularly imprinted catalysts can significantly improve the removal capacity of sulfonamides. When compared to Fe3O4, the removal rates observed for 3 different SAs increased by 98, 20 and 61%, resp. over 480 min on target catalyst and a good magnetic separation effect was observed in short time. The theor. results show that the optimal imprinted conditions can be quickly determined by analyzing the energy variation in the optimized system. Combined with energy anal. and free radical detection, the effects of weak interactions such as hydrogen bonds and van der Waals forces on the selective recognition ability of the materials were determined The results also show that the selective recognition process mainly exists in the higher activity groups (-NH2 and -NH-) that connect to the benzene ring in SAs. The catalysts also maintain their targeted catalytic activity in complex water samples. The results show that computational chem. and mol. imprinting can be used to design and prepare a targeted catalyst quickly and analyze the mechanism of its targeted degradation process. This study can provide reference for the rapid design of targeted catalysts and an improvement in the degradation efficiency of refractory pollutants found in wastewater. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Formula: C8H10N2O3S

The Article related to sulfonamide surface mol imprinting degradation wastewater treatment, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Formula: C8H10N2O3S

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

On May 6, 2020, there was a patent about glycidyl ethers.Category: amides-buliding-blocks The title of the patent was Production of thermoplastic polyoxazolidinone polymers and thermoplastic polyoxazolidinone. And the patent contained the following:

A process for producing thermoplastic polyoxazolidinone, comprising (i) reaction of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E) forming an intermediate compound (F) and (ii) reaction of a compound (G) with the intermediate (F) formed in step (i), where the bisepoxide compound (B) comprises isosorbide diglycidyl ether, where compound (D) is ≥1 compounds selected from monofunctional isocyanate and monofunctional epoxide, and where compound (G) is an alkylene oxide. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Category: amides-buliding-blocks

The Article related to thermoplastic polyoxazolidinone polymer, Chemistry of Synthetic High Polymers: Organic Addition Polymerization and other aspects.Category: amides-buliding-blocks

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

On March 21, 2019, Koopmans, Carsten; Guertler, Christoph; Wolf, Aurel; Frick-Delaittre, Elena; Laemmerhold, Kai; Rangheard, Claudine; Breuer, Timo published a patent.HPLC of Formula: 5455-98-1 The title of the patent was Method for the production of thermplastic polyoxazolidinone polymers. And the patent contained the following:

A process for producing thermoplastic polyoxazolidinone comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E), wherein the catalyst (C) is selected from the group consisting of alkali halogenides and earth alkali halogenides, and transition metal halogenides, compound (D) is selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, and wherein the process comprises step (α) of placing the solvent (E) and the catalyst (C) in a reactor to provide a mixture, and adding the diisocyanate compound (A), the bisepoxide compound (B) and the compound (D) in step (β) to the mixture resulting from the step (a).The invention is also related to the resulting thermoplastic polyoxazolidinone. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).HPLC of Formula: 5455-98-1

The Article related to thermplastic polyoxazolidinone polymer, Chemistry of Synthetic High Polymers: Organic Addition Polymerization and other aspects.HPLC of Formula: 5455-98-1

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

On March 20, 2019, there was a patent about glycidyl ethers.Quality Control of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione The title of the patent was Method for the production of thermplastic polyoxazolidinone polymers. And the patent contained the following:

A process for producing thermoplastic polyoxazolidinone comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E), wherein the catalyst (C) is selected from the group consisting of alkali halogenides and earth alkali halogenides, and transition metal halogenides, compound (D) is selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, and wherein the process comprises step (α) of placing the solvent (E) and the catalyst (C) in a reactor to provide a mixture, and adding the diisocyanate compound (A), the bisepoxide compound (B) and the compound (D) in step (P) to the mixture resulting from the step (α). The invention is also related to the resulting thermoplastic polyoxazolidinone. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Quality Control of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

The Article related to thermplastic polyoxazolidinone polymer, Chemistry of Synthetic High Polymers: Organic Addition Polymerization and other aspects.Quality Control of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

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

On February 1, 2016, Hopp, Jens; Trieloff, Mario; Ott, Ulrich published an article.Computed Properties of 97-09-6 The title of the article was I-Xe ages of enstatite chondrites. And the article contained the following:

In order to elucidate the early thermal history of enstatite chondrite parent bodies we determined 129I-129Xe whole rock ages of enstatite chondrites (5 EH, 2 EL, one EH impact melt) relative to the Shallowater reference meteorite (4562.3 ± 0.4 Ma, all errors are 1σ). I-Xe ages of both EL6 chondrites (LON 94100: -4.38 ± 0.60 Ma and Neuschwanstein: -3.87 ± 0.73 Ma – neg. sign indicates ages younger than Shallowater) agree well with data of other EL6 chondrites. LON 94100 displayed a second isochron at lower temperatures equivalent to a younger age of -5.25 ± 1.17 Ma, perhaps reflecting different retention temperatures of resp. carrier phases during sequential cooling. The enstatite chondrites Abee (EH4), Indarch (EH4), EET 96135 (EH4/5) and St. Marks (EH5) encompass a I-Xe age range of +0.57 ± 1.05 Ma (EET 96135 #1) to -0.45 ± 0.72 Ma (Abee), again in agreement with previously reported ages of EH chondrites. Only the age of St. Marks differs strongly from previously reported younger ages, now being more in accordance with other members of the EH clan. The EH3 chondrite Sahara 97096 showed the youngest I-Xe age of -7.87 ± 0.46 Ma distinctly younger than other I-Xe ages of EH chondrites, including other EH3s. Due to the apparent high retention temperature of the I-Xe system in enstatite (estimated >800 °C) this young age implies a later resetting of the I-Xe system by a severe thermal, likely impact-induced, event. The EH impact melt LAP 02225 records a similarly young thermal event. Though no isochron relationship could be established, the data fall within an apparent I-Xe age range of +5 to +15 Ma, similar to Sahara 97096. Overall, EH chondrite parent body experienced a thermal history determined by a complex interplay between impact disturbances and parent body metamorphism. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Computed Properties of 97-09-6

The Article related to iodine xenon age enstatite chondrite, Mineralogical and Geological Chemistry: Cosmochemistry and Meteorites and other aspects.Computed Properties of 97-09-6

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