Category: 64-10-8

Quality Control of 1-Phenylurea. Ovchinnikov, DV; Pokrovskiy, OI; Kosyakov, DS; Bogolitsyn, KG; Ul’yanovskii, NV; Falev, DI in [Ovchinnikov, Denis, V; Kosyakov, Dmitry S.; Bogolitsyn, Konstantin G.; Ul’yanovskii, Nikolay, V; Falev, Danil, I] Lomonosov Northern Arctic Fed Univ, Core Facil Ctr Arktika, 17 Severnaya Dvina Embankment, Arkhangelsk 163002, Russia; [Pokrovskiy, Oleg, I] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, 31 Leninskiy Prospekt, Moscow 119991, Russia published Evaluation of temperature and pressure effects on retention in supercritical fluid chromatography on polar stationary phases in 2020.0, Cited 32.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8.

Four polar stationary phases (ethylene-bridged hybrid silica, cyanopropyl, 2-ethylpyridine, and zwitterionic sulfobetaine) have been characterized in supercritical fluid chromatography (SFC) by linear free energy relationships (LFER) method with an extended set of Abraham’s descriptors. Temperature (25-55 degrees C) and pressure (110-180 bar) effects on analyte retention, separation selectivity and LFER-coefficients of chromatographic systems have been studied using the 89 test compounds of various chemical classes and carbon dioxide – methanol (9:1 v/v) binary solvent as a mobile phase. It was found that for the selected stationary phases temperature and pressure had only moderate effects on selectivity. The retention times of all analytes decrease, as can be expected, if the pressure rises at the isothermal conditions due to the increase of the fluid density and its eluting power. The effect of temperature on retention is complicated and depends both on the chemical class of analyzed compounds and the stationary phase type. Temperature and pressure variations lead to small changes in the LFER-coefficients, and general trends observed do not depend much on the stationary phase type. It may be difficult to interpret the LFER-analysis results because of the evident, more significant chromatographic phenomena. (C) 2019 Elsevier B.V. All rights reserved.

Quality Control of 1-Phenylurea. Bye, fridends, I hope you can learn more about C7H8N2O, If you have any questions, you can browse other blog as well. See you lster.

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Computed Properties of C7H8N2O. Authors Agbaogun, BK; Alonso, JM; Buddenbaum, H; Fischer, K in WILEY published article about in [Agbaogun, Babatunde K.; Fischer, Klaus] Univ Trier, Analyt & Ecol Chem, Trier, Germany; [Alonso, Jose M.] Univ Santiago de Compostela, Ctr Singular Invest Tecnoloxias Informac CiTIUS, Santiago, Spain; [Buddenbaum, Henning] Univ Trier, Environm Remote Sensing & Geoinformat, Trier, Germany in 2021.0, Cited 42.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8

Sorption of pesticides by soils holds a major consequence for their fate in the environment. As such, sorption coefficient (K-d/K-oc), which is derived from laboratory or field experiments is a fundamental parameter used in almost all screening tools to evaluate the fate or mobility of these compounds. The value of this coefficient is controlled by many soil and solute specific properties, as well as environmental variables. Soft computing techniques such as Adaptive Neuro-Fuzzy Inference System (ANFIS) have been successfully used to predict the equilibrium partitioning of many compounds in various engineered systems. Application of these techniques to natural systems such as soils is however lacking. Here, we present the use of ANFIS in predicting the sorption per unit mass of soil, Q(e), used in the calculation of K-d/K-oc of compounds in soils. In a previous study, we collected data associated to the adsorption of five phenylurea herbicides in 18 tropical soils. Here, we analysed such data and based on established correlations, nine variables were selected as potential input vectors (i.e., six soil properties, two herbicides molecular descriptors and initial solute concentrations). A total of 255 ANFIS models of one to eight input vectors were elaborated under 10-fold cross-validation. Multiple linear regression (MLR) models were similarly developed, and compared with the ANFIS in terms of mean absolute error (MAE), root-mean-square error (RMSE) and coefficient of determination (R-2). The best ANFIS model (M94) has an MAE(test), RMSEtest and R-test(2) of 3.43 +/- 0.43, 4.94 +/- 0.80 and 0.95 +/- 0.01, respectively, whereas the best MLR model (M13) returned an MAE, RMSE and R-2 of 7.71 +/- 0.13, 10.11 +/- 1.21 and 0.81 +/- 0.01, respectively. We observed that generally ANFIS performed better than MLR regarding both accuracy and interpretability. Accordingly, we recommend the use of ANFIS for predicting the sorption coefficients of phenylurea herbicides (PUHs) in soils.

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

An article Improvement of pesticide removal in contaminated media using aqueous extracts from contaminated biopurification systems WOS:000504009600071 published article about BIOREMEDIATION SYSTEMS; BACTERIAL COMMUNITY; INCP-1 PLASMIDS; DEGRADATION; DIURON; SOIL; BIODEGRADATION; MINERALIZATION; HYDROLASE; IMPACTS in [Aguilar Romero, Ines; van Dillewijn, Pieter; Romero, Esperanza] CSIC, EEZ, Dept Environm Protect, C Prof Albareda 1, E-18008 Granada, Spain; [Nesme, Joseph; Sorensen, Soren J.] Univ Copenhagen, Dept Biol, Sect Microbiol, DK-2100 Copenhagen, Denmark in 2019.0, Cited 44.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8. Recommanded Product: 1-Phenylurea

Despite certain limitations, bioaugmentation enhances the efficiency of bioremediation systems. In this study, three aqueous extracts (APE, ACE and APE) from aged residual biomixtures in three biopurification systems (BPSs) exposed to pesticides at a pilot scale were found to improve pesticide removal. The addition of ACEs and AVEs to solutions containing the model compound diuron increased removal rates 6- and 17-fold, respectively, as compared to APEs. These extracts also increased the removal of the metabolite 3,4-dichloroaniline, while AVEs, in particular, were found to remove all pesticides within 9 days. Three metabolites less hazardous than 3,4-dichloroaniline were identified by SPME/GC/MS. AVEs, which also enhance linuron removal in liquid media, were found to increase diuron removal 6-fold in BPSs. We observed an increase in the relative abundance of taxa, such as Chloroflexi, Acidobacteria, Gemmatimonadetes, Firmicutes, Deinococcus-Thermus and especially Proteobacteria (10%), in AV biomixtures, as well as an enrichment of gamma-proteobacteria and the actinobacterial genus Dokdonella in AVEs with respect to initial noncontaminated IV biomixture. We demonstrate that extracts containing a pollutant-acclimatized microbiome could be used as part of a bioaugmentation strategy to improve the functioning of on-farm BPSs and contaminated systems. (c) 2019 Elsevier B.V. All rights reserved.

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

In 2020.0 J HETEROCYCLIC CHEM published article about CRYSTAL-STRUCTURE; MODULAR APPROACH; DERIVATIVES; CUCURBITURIL in [Bakibaev, Abdigali A.; Uhov, Artur; Malkov, Victor S.; Panshina, Svetlana Yu.] Natl Res Tomsk State Univ, Dept Chem, Tomsk 634050, Russia; [Panshina, Svetlana Yu.] Natl Res Tomsk Polytech Univ, Dept Chem, Tomsk, Russia in 2020.0, Cited 52.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8. HPLC of Formula: C7H8N2O

Most of the known methods for the synthesis of heterocyclic compounds have disadvantages, such as a long reaction time and aggressive conditions. We have developed a new, rather simple and efficient method for the synthesis of a number of glycoluryls and hydantoins in water using a etidronic acid (HEDP) as Green catalyst. So, for the first time, the condensation reaction of ureas with 1, 2-dicarbonyl compounds was carried out in the presence of HEDP. Also based on NMR studies, a chemism of these reactions, which is stepwise, is proposed. It has been established that the optimal conditions for the synthesis of glycoluryls and hydantoins using HEDP are: temperature 80 degrees C-90 degrees C, 40-20 minutes, and the ratio of urea and HEDP is 1:1. In all cases, the remaining aqueous filtrate containing HEDP after the reaction can be reused for other cycles synthesis of glycoluril and other compounds, because HEDP is not converted during the reaction.

Welcome to talk about 64-10-8, If you have any questions, you can contact Bakibaev, AA; Uhov, A; Malkov, VS; Panshina, SY or send Email.. HPLC of Formula: C7H8N2O

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

In 2020.0 J SERB CHEM SOC published article about DENSITY-FUNCTIONAL THERMOCHEMISTRY; ONE-POT SYNTHESIS; MILD-STEEL; ACID; DFT in [Akbas, Esvet; Yildiz, Ela; Erdogan, Ahmet] Van Yuzuncu Yil Univ, Dept Chem, TR-65080 Van, Turkey in 2020.0, Cited 21.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8. Product Details of 64-10-8

In this study, five new pyrimidine derivatives were synthesized and characterized by characterization methods such as H-1-NMR, C-13-NMR, FT-IR and elemental analysis. The corrosion inhibition activity of the synthesized compounds was examined by theoretical calculation using DFT method at the level of B3LYP/6-31G (d,p). According to the calculations, 4-(6-benzoyl-2-benzylidene-3-oxo-7-phenyl-2,3-dihydro-5H-thiazolo[3,2-a]pyrimidin-5-yl)-benzoic acid (6) appears to be a good inhibitor for corrosion.

Product Details of 64-10-8. About 1-Phenylurea, If you have any questions, you can contact Akbas, E; Yildiz, E; Erdogan, A or concate me.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

In 2020.0 ORG CHEM FRONT published article about N-SUBSTITUTED UREAS; ONE-POT SYNTHESIS; PRACTICAL SYNTHESIS; ENANTIOSELECTIVE SYNTHESIS; ASYMMETRIC REDUCTION; ARYL IMINES; EFFICIENT; AMINES; HYDROSILYLATION; DERIVATIVES in [Ran, Xiaoyun; Long, Yan; Yang, Sheng; Peng, Changjiang; Zhang, Yuanyuan; Jiang, Zhenju; Zhang, Xiaomei; Wang, Zhouyu; Yu, Xiaoqi] Xihua Univ, Dept Chem, Chengdu 610039, Peoples R China; [Qian, Shan; Yang, Lingling] Xihua Univ, Dept Pharmaceut Engn, Chengdu 610039, Peoples R China in 2020.0, Cited 64.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8. Recommanded Product: 64-10-8

An HMPA catalyzed reductive alkylation of ureas and thioureas with trichlorosilane under mild reaction conditions has been developed. Both aldehydes and ketones could be used as efficient alkylation reagents in this method to obtain the desired products in moderate to high yields. A variety of di- and trisubsituted ureas and thioureas were easily prepared by this new reductive alkylation method. This protocol exhibits excellent functional group tolerance, chemoselectivity and practicality.

Recommanded Product: 64-10-8. Welcome to talk about 64-10-8, If you have any questions, you can contact Ran, XY; Long, Y; Yang, S; Peng, CJ; Zhang, YY; Qian, S; Jiang, ZJ; Zhang, XM; Yang, LL; Wang, ZY; Yu, XQ or send Email.

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

In 2020.0 ECOTOX ENVIRON SAFE published article about PHENYL-UREA HERBICIDES; PLATINUM NANOPARTICLES; CARBON NANOTUBES; ELECTROCHEMICAL SENSOR; GRAPHITE ELECTRODE; WATER SAMPLES; CHITOSAN; PERFORMANCE; PESTICIDES; OXIDATION in [Morawski, Franciele de Matos; Winiarski, Joao Paulo; Parize, Alexandre Luis; Jost, Cristiane Luisa] Univ Fed Santa Catarina, Dept Quim, Ampere Lab Plataformas Eletroquim, BR-88040900 Florianopolis, SC, Brazil; [Maduro de Campos, Carlos Eduardo] Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil in 2020.0, Cited 60.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8. Application In Synthesis of 1-Phenylurea

Phenylurea herbicides are persistent contaminants, which leads their transport to the surface and ground waters, affecting human and aquatic organisms. Different analytical methods have been reported for the detection of phenylureas; however, several of them are expensive, time-consuming, and require complex pretreatment steps. Here, we show a simple method for the simultaneous electrochemical determination of two phenylurea herbicides by differential pulse adsorptive stripping voltammetry (DPAdSV) using a modified platinum/chitosan electrode. The one-step synthesized platinum/chitosan PtNPs/CS was successfully characterized by TEM, XRPD, and FT-IR, and applied through the sensing platform designated as PtNPs/CS/GCE. This bio-based modified electrode is proposed for the first time for the individual and/or simultaneous electrochemical detection of the phenylurea herbicides diuron and isoproturon compounds extensively used worldwide that present a very similar chemical structure. Electrochemical and interfacial characteristics of the modified electrode were evaluated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). It was found that the oxidation mechanism of diuron and isoproturon occurs in two different pathways, with a peak-to-peak definition of ca. 0.15 V. Under differential pulse adsorptive stripping voltammetry (DPAdSV) optimized conditions, the limit of detection (LOD) was estimated as 7 mu g L-1 for isoproturon and 20 mu g L-1 for diumn (E-d = +0.8 V; t(d) = 100 s). The proposed method was successfully applied to the determination of both analytes in river water samples, at three different levels, with a recovery range of 90-110%. The employment of the bio-based sensing platform PtNPs/CS/GCE allows a novel and easy analytical method to the multi-component phenylurea herbicides detection.

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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

An article Synthesis of glycolurils and hydantoins by reaction of urea and 1,2-dicarbonylcompounds using etidronic acid as a green catalyst WOS:000571595400001 published article about CRYSTAL-STRUCTURE; MODULAR APPROACH; DERIVATIVES; CUCURBITURIL in [Bakibaev, Abdigali A.; Uhov, Artur; Malkov, Victor S.; Panshina, Svetlana Yu.] Natl Res Tomsk State Univ, Dept Chem, Tomsk 634050, Russia; [Panshina, Svetlana Yu.] Natl Res Tomsk Polytech Univ, Dept Chem, Tomsk, Russia in 2020.0, Cited 52.0. Safety of 1-Phenylurea. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8

Most of the known methods for the synthesis of heterocyclic compounds have disadvantages, such as a long reaction time and aggressive conditions. We have developed a new, rather simple and efficient method for the synthesis of a number of glycoluryls and hydantoins in water using a etidronic acid (HEDP) as Green catalyst. So, for the first time, the condensation reaction of ureas with 1, 2-dicarbonyl compounds was carried out in the presence of HEDP. Also based on NMR studies, a chemism of these reactions, which is stepwise, is proposed. It has been established that the optimal conditions for the synthesis of glycoluryls and hydantoins using HEDP are: temperature 80 degrees C-90 degrees C, 40-20 minutes, and the ratio of urea and HEDP is 1:1. In all cases, the remaining aqueous filtrate containing HEDP after the reaction can be reused for other cycles synthesis of glycoluril and other compounds, because HEDP is not converted during the reaction.

About 1-Phenylurea, If you have any questions, you can contact Bakibaev, AA; Uhov, A; Malkov, VS; Panshina, SY or concate me.. Safety of 1-Phenylurea

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Authors Patel, KP; Gayakwad, EM; Patil, VV; Shankarling, GS in WILEY-V C H VERLAG GMBH published article about ONE-POT SYNTHESIS; CATALYZED TRANSAMIDATION; GRAPHITE OXIDE; SUBSEQUENT DECORATION; HIGHLY EFFICIENT; AG NANOPARTICLES; CARBOXAMIDES; AMINES; DERIVATIVES; DISPERSION in [Patel, Khushbu P.; Gayakwad, Eknath M.; Patil, Vilas V.; Shankarling, Ganapati S.] Inst Chem Technol, Dept Dyestuff Technol, NP Marg, Mumbai 400019, Maharashtra, India in 2019.0, Cited 69.0. Product Details of 64-10-8. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8

An environmentally friendly, inexpensive, carbocatalyst, graphene oxide (GO) promoted efficient, metal-free transamidation of various carboxamides with aliphatic, cyclic, and aromatic amines is demonstrated. The protocol is equally applicable to phthalimide, urea, and thioamide determining its adaptability. The oxygenated functionalities such as carbonyl (C=O), epoxy (O), carboxyl (COOH) and hydroxyl (OH), present on graphene oxide surface impart acidic properties to the catalyst. The graphene oxide being heterogeneous in nature, work efficiently under solvent-free reaction conditions providing desired products in good to excellent yields. The one-pot synthesis of 2,3-Dihydro-5H-benzo[b]-1,4-thiazepin-4-one moiety by GO catalyzed Aza Michael addition followed by intramolecular transamidation is also described. A plausible reaction mechanistic pathway involving H-bonding is discussed. The graphene oxide can be recycled and reused up to five cycles without much loss in catalytic activity.

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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Application In Synthesis of 1-Phenylurea. In 2019.0 ACS OMEGA published article about BENZOXAZOLE DERIVATIVES; BIOLOGICAL EVALUATION; DIRECT AMINATION; DESIGN; ANTICANCER; CYANATION in [Slachtova, Veronika; Chasak, Jan; Brulikova, Lucie] Palacky Univ Olomouc, Fac Sci, Dept Organ Chem, 17 Listopadu 12, Olomouc 77146, Czech Republic in 2019.0, Cited 38.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8.

This study reports two synthetic approaches leading to 2-aminobenzoxazoles and their N-substituted analogues. Our first synthetic strategy involves a reaction between various o-aminophenols and N-cyano-N-phenyl-p-toluenesulfonamide as a nonhazardous electrophilic cyanating agent in the presence of Lewis acid. The second synthetic approach uses the Smiles rearrangement upon activation of benzoxazole-2-thiol with chloroacetyl chloride. Both developed synthetic protocols are widely applicable, afford the desired aminobenzoxazoles in good to excellent yields, and use nontoxic and inexpensive starting material.

Welcome to talk about 64-10-8, If you have any questions, you can contact Slachtova, V; Chasak, J; Brulikova, L or send Email.. Application In Synthesis of 1-Phenylurea

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem