Tag: 200-300

On December 15, 2021, Nikbakht Fini, Mahdi; Montesantos, Nikolaos; Maschietti, Marco; Muff, Jens published an article.SDS of cas: 4719-04-4 The title of the article was Performance evaluation of membrane filtration for treatment of H2S scavenging wastewater from offshore oil and gas production. And the article contained the following:

After removing H2S from natural gas in offshore oil and gas installations, triazine-based spent scavenger solution remains as a wastewater stream, which in some cases is discharged untreated into the sea. Three nanofiltration (NF) membranes (NF270, NF99HF, and DL), as well as a reverse osmosis (RO) membrane (XLE), were used for TOC reduction from spent and unspent scavenger (SUS) wastewater. The NF270 membrane reduced the TOC of SUS wastewater (61.5 g/L) by 65% while having a superior permeate flux compared to the other studied membranes and thus was subjected to elaborated study. In particular, this membrane showed a separation between the unreacted/unspent scavenger triazine (1,3,5-tris(2-hydroxy-ethyl)hexahydro-s-triazine, HET) and the main spent scavenger reaction product (5-(2-hydroxyethyl)hexahydro-1,3,5-dithiazine, DTZ) as it removed HET by 71% vs. zero removal of DTZ. DTZ is a polar and hydrophobic mol. and consequently passes readily through the membrane despite an expected removal value of 50% based on a simple size exclusion pore flow model. The NF270 permeate was then used as a feed for RO filtration by the XLE membrane to further reduce the TOC of effluent stream by 98% (1.1 g/L). Lastly, both membranes did not demonstrate remarkable fouling when they were tested in 24 h preliminary lab-scale fouling experiments with a constant-concentration feed. This paper is the first published study on SUS wastewater treatment using membrane technol. proving its applicability for total organic carbon (TOC) reduction and simultaneously provides a promising route for further investigations on recovery of unreacted scavenger from spent scavenger compound The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).SDS of cas: 4719-04-4

The Article related to wastewater membrane filtration offshore oil hydrogen sulfide, Waste Treatment and Disposal: Biological Treatment Of Aqueous Wastes and other aspects.SDS of cas: 4719-04-4

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On February 22, 2017, Zhao, Fulu; Wang, Qi; Wang, Yinhu; Li, Sen; Wang, Lichun; Wang, Jingyi published a patent.Related Products of 428855-17-8 The title of the patent was Intermediate compound of LB80380 drug and preparation method and application thereof. And the patent contained the following:

The invention provides an intermediate compound of LB80380 represented by formula I, wherein R1, R2, R3 and R4 are independently selected from linear or branched-chain alkyl, benzyl substituted with 1-5 R5 groups and R5CO, and are the same or different, and R5 is selected from H, substituted or unsubstituted C1-C4 alkoxy, C3-C7 alkenyl alkoxy and substituted or unsubstituted benzyloxy. The invention also provides a method for preparing the compound and application of the compound When the compound was used for preparing compound 3-[({1-[(2-amino-9H-purin-9-yl) methyl]cyclopropyl}oxy) methyl]-8,8-dimethyl-3,7-dioxo-2,4,6-trioxa-3λ-phosphanonan-yl-pivalate;, the reaction route has easily available low-cost raw materials and intermediate, low cost and high safety, and is suitable for industrial production The experimental process involved the reaction of 1-[(Dibenzylamino)methyl]cyclopropanol(cas: 428855-17-8).Related Products of 428855-17-8

The Article related to lb80380 drug intermediate preparation, Organometallic and Organometalloidal Compounds: Phosphorus Compounds and other aspects.Related Products of 428855-17-8

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On April 21, 2021, Perez Pineiro, Rolando; Peeples, Craig A.; Hendry, Jonathan; Hoshowski, Jody; Hanna, Gabriel; Jenkins, Alyn published an article.Name: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol The title of the article was Raman and DFT Study of the H2S Scavenger Reaction of HET-TRZ under Simulated Contactor Tower Conditions. And the article contained the following:

Raman spectroscopy is a rapid and noninvasive anal. technique used for the anal. of complex materials in complex matrixes. Herein, we report for the first time a combined Raman-DFT study to assign all the vibrational modes associated with the most important species involved in the H2S scavenger reaction of HET-triazine under simulated contactor tower conditions. In doing so, we have defined specific peaks or Raman identifier bands (RIBs) to get a complete reaction profile of the H2S removal process. Our methodol. was able to identify the presence of the elusive 2,2′-(1,3,5-thiadiazine-3,5-diyl)di(ethan-1-ol) (TDZ) intermediate and also provided evidence supporting the formation of the sulfur polymeric deposit from the 2-(1,3,5-dithiazinan-5-yl)ethan-1-ol (DTZ) byproduct. The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).Name: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol

The Article related to dihydrogen sulfide scavenger reaction hexahydro trishydroxyethyl triazine raman spectrum, Physical Organic Chemistry: Degradation Reactions, Including Mass Spectral Fragmentation and other aspects.Name: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol

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Madsen, Henrik T.; Soegaard, Erik G. published an article in 2012, the title of the article was Use of ESI-MS to determine reaction pathway for hydrogen sulphide scavenging with 1,3,5-tri-(2-hydroxyethyl)-hexahydro-s-triazine.SDS of cas: 4719-04-4 And the article contains the following content:

To study the reaction between hydrogen sulfide and 1,3,5-tri-(2-hydroxyethyl)-hexahydro-s-triazine, which is an often used hydrogen sulfide scavenger, electrospray ionisation mass spectrometry (ESI-MS) was used. The investigation was carried out in pos. mode and tandem mass spectrometry was used to investigate the nature of unknown peaks in the mass spectra. The reaction was found to proceed as expected from theory with the triazine reacting with hydrogen sulfide to form the corresponding thiadiazine. This species subsequently reacted with a second hydrogen sulfide mol. to form the dithiazine species, thereby confirming previously obtained results and showing the ability of the ESI-MS method for studying the scavenging reaction. The final theor. product s-trithiane was not detected. Furthermore, fragmentation products of thiadiazine and dithiazine were detected in the solution and possible pathways and structures were suggested to describe the observed fragments. In these, thiadiazine fragmented to 2-(methylidene amino)-ethanol and 2-(1,3-thiazetidin-3-yl)-ethanol and N-(2-hydroxyethyl)-N-(sulfanylmethyl)-ethaniminium, which underwent a further fragmentation to N-methyl-N-(2-oxoethyl)-methaniminium. Dithiazine fragmented to N-methyl-N-(2-oxoethyl)-methaniminium as well. The byproduct from this reaction is methanedithiol, which was not detected due to its low polarity. The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).SDS of cas: 4719-04-4

The Article related to reaction pathway hydrogen sulfide scavenging hydroxyethylhexahydrotriazine esi ms, Physical Organic Chemistry: Degradation Reactions, Including Mass Spectral Fragmentation and other aspects.SDS of cas: 4719-04-4

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On June 24, 2004, Corbett, Jeffrey Wayne; Groppi, Vincent Edward, Jr. published a patent.Name: (6-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol The title of the patent was A preparation of azabicycloalkane derivatives, useful as α7 nicotinic acetylcholine receptor (α7 nAChR) agonists. And the patent contained the following:

The invention relates to azabicycloalkane derivatives of formula azabicyclo-N(R1)-C(:X)-W [wherein: R1 is H, (cyclo)alkyl, or haloalkyl, etc.; X is O or S; W is a substituted benzene], useful as α7 nAChR agonists. Pharmacokinetics of the prepared compounds were evaluated (no biol. data). Blood-brain barrier penetration was investigated (no biol. data). For instance, chiral azabicycloheptane derivative I was prepared via addition of Me 3-bromopropargylate to N-Boc-pyrrole, reduction of the obtained azabicyclo[2.2.1]heptadiene II, hydrolysis of the obtained azabicycloheptane derivative III (R2 = OMe), reaction of the carboxylic acid III (R2 = OH) with diphenylphosphoryl azide and benzyl alc., resolution of the obtained exo-derivative IV, and hydrogenation. The experimental process involved the reaction of (6-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol(cas: 280752-78-5).Name: (6-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol

The Article related to azabicycloalkane preparation alpha7 nachr agonist nicotinic acetylcholine receptor antialzheimer, pyrrole bromo propargylate addition reduction resolution, Alicyclic Compounds: Bicyclic Compounds, Including Azulenes, Heptalenes, and Pentalenes and other aspects.Name: (6-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol

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On October 31, 2020, He, Liao; Sang, Yimin; Yu, Wang; Li, Wanxin; Jiao, Yuhai; Ma, Fujun; Li, FasHeng; Liu, Yuqin; Gu, Qingbao published an article.HPLC of Formula: 96-76-4 The title of the article was Polymerization and Carbonization Behaviors of 2-Methylnaphthalene in Contaminated Soil During Thermal Desorption. And the article contained the following:

Despite the important niche and broad applicability of thermal remediation (TD), little work has been done to discuss chem. reactions of methylnaphthalene contaminated soil. The 2-methylnaphthalene desorption amount (MDA) of TD is studied here under different conditions, and the carbonation (chem. polymerized or condensed) behavior of 2-methylnaphthalene is explained by analyzing the changes of soil organic carbons (SOCs), off-gas products, and surface chem. properties. It indicates that the influence sequence of MDA from high to low is heating time, heating temperatures, and flow rates of carrier gas. MDA increases steadily with the increase of temperatures (200-300°C) but decreases slightly after 300°C; the reason may be the chem. conversion of 2-methylnaphthalene. GC-MS anal. of off-gas confirms that partial 2-methylnaphthalene is polymerized to form 2-methylbenzo[b]thiophene and 2,4-di-tert-butylpheno at 400°C, which is the first step of carbonization process. The XPS results of soil indicate that the C content decreases, but C-(C, H) chem. structure increases, indicating that new carbonaceous substances are generated. A layer of “char” is seen by scanning electron microscope to be left on the surface of the soil particles. As the temperature increases (200-400°C), the SOCs generally decreases from 1.14 to 0.82%, which is the result of the equilibrium between SOCs pyrolysis and 2-methylnaphthalene carbonization. The experimental process involved the reaction of 2,4-Di-tert-butylphenol(cas: 96-76-4).HPLC of Formula: 96-76-4

The Article related to methylnaphthalene contaminated soil thermal desorption polymerization carbonization, Fossil Fuels, Derivatives, and Related Products: Petroleum Geochemistry and Prospecting and other aspects.HPLC of Formula: 96-76-4

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On August 14, 2014, Jorand-Lebrun, Catherine; Kulkarni, Santosh; Christmann-Franck, Serge published a patent.Computed Properties of 1333264-06-4 The title of the patent was Macrocyclic pyridazinone derivatives as IRAK inhibitors and their preparation. And the patent contained the following:

The invention relates to compounds of formula I, and their use in the prophylaxis and treatment of diseases. Compounds of formula I wherein R1 and R3 are independently H, (CH2)0-2CONH2 and derivatives, OH and derivatives, halo, etc.; R2 is H, (un)substituted (un)branched C1-3 alkyl; R4 is H and (un)substituted (un)branched C1-10 alkyl where one or two methylene units may be replaced with O; Z is absent, arylenediene and heterocyclenediene; L is (CH2)1-6 wherein one or two methylene units may be replaced by O and CH=CH; and their pharmaceutically usable tautomers, solvates, salts, stereoisomers, and mixtures in all ratios, are claimed. Example compound II was prepared by a multistep procedure (procedure given). The invention compounds were evaluated for their IRAK inhibitory activity. From the assay it was determined that compound II exhibited IC50 values of < 0.1 μM towards both IRAK1 and IRAK4. The experimental process involved the reaction of [4-Fluoro-3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]methanol(cas: 1333264-06-4).Computed Properties of 1333264-06-4

The Article related to macrocyclic pyridazinone preparation irak inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyridazines, Cinnolines, and Phthalazines and other aspects.Computed Properties of 1333264-06-4

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On August 5, 2004, Groppi, Vincent Edward, Jr.; Rogers, Bruce Nelsen; Rudmann, Daniel Gregory published a patent.Name: (6-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol The title of the patent was Treatment of diseases with alpha-7 NACh receptor full agonists. And the patent contained the following:

The present invention relates to compositions and methods to treat diseases or conditions with alpha-7 nicotinic acetylcholine receptor (AChR) full agonists by decreasing levels of tumor necrosis factor-alpha and/or by stimulating vascular angiogenesis. The experimental process involved the reaction of (6-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol(cas: 280752-78-5).Name: (6-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol

The Article related to nicotinic acetylcholine receptor agonist quinuclidinylheteroarylamide cancer diabetes angiogenesis therapy, Pharmacology: Effects Of Nervous System- and Behavior-Affecting Drugs and Neuromuscular Agents and other aspects.Name: (6-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol

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On January 31, 2020, Jamil, Farrukh; Al-Muhtaseb, Ala’a H.; Naushad, Mu; Baawain, Mahad; Al-Mamun, Abdullah; Saxena, Sandeep K.; Viswanadham, N. published an article.Safety of 2,4-Di-tert-butylphenol The title of the article was Evaluation of synthesized green carbon catalyst from waste date pits for tertiary butylation of phenol. And the article contained the following:

The present study is intended to adopt a facile method for preparing a sulfonated green carbon catalyst from date pits biomass. Catalyst synthesis involves in situ carbonization and sulfonation and it has been characterized by following techniques such as XRD, SEM, EDX, TEM, FTIR, TGA, and BET. Surface and internal morphol. results exhibited that the synthesized sulfonated carbon material possesses a mesoporous structure, while activated carbon possesses a microporous structure. Furthermore, the Fourier transform IR (FTIR) spectra confirmed the presence of acidic groups (-OH, -COOH, and -SO3H) in synthesized sulfonated carbon material. Sulfonated carbon material exhibited high acidity (4.7 mmol/g) and good thermal stability. The application of this catalyst for the tertiary butylation of phenol without using any solvent has been investigated. The phenol alkylation reaction showed maximum conversion at reaction condition: temperature (140°C) with 2 bar (nitrogen gas) pressure with maximum phenol conversion 79.27 wt%, with 68.01% selectivity towards 4TBP+2,4TBP, which is used as an intermediate in antioxidants. The catalyst exhibits comparable catalytic performance up to five reaction cycles. Thus it can be concluded that waste date pits can be successfully employed for green catalyst synthesis and used for reactions involving large mols. The experimental process involved the reaction of 2,4-Di-tert-butylphenol(cas: 96-76-4).Safety of 2,4-Di-tert-butylphenol

The Article related to phenol tertiary butylation green carbon catalyst synthesis, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Safety of 2,4-Di-tert-butylphenol

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Madsen, H. T.; Soegaard, E. G. published an article in 2014, the title of the article was Fouling Formation During Hydrogen Sulfide Scavenging With 1,3,5-tri-(hydroxyethyl)-hexahydro-s-triazine.Electric Literature of 4719-04-4 And the article contains the following content:

To investigate if the hydrogen sulfide scavenger, 1,3,5-tri-(hydroxyethyl)-hexahydro-s-triazine, could explain a severe carbon/sulfur rich fouling found at a refinery, experiments were conducted to study the scavenging process and the composition of the fouling. The reaction was analyzed with electro spray ionization mass spectrometry (ESI-MS), and the fouling with IR spectroscopy and X-ray diffraction. The fouling was found to be a byproduct of the scavenging reaction, and to consist of dithiazine mols. with linking carbon-sulfur chains. ESI-MS anal. strongly indicates that these chains are generated when dithiazine decomposes to smaller mols., which through condensation reactions with dithiazine forms the fouling. The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).Electric Literature of 4719-04-4

The Article related to triazine hydrogen sulfide scavenging fouling formation mechanism, Fossil Fuels, Derivatives, and Related Products: General Engineering Studies (Coal and Petroleum) and other aspects.Electric Literature of 4719-04-4

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