Month: November 2022

On April 2, 2021, Tailor, Sanita B.; Manzotti, Mattia; Smith, Gavin J.; Davis, Sean A.; Bedford, Robin B. published an article.Related Products of 78-26-2 The title of the article was Cobalt-Catalyzed Coupling of Aryl Chlorides with Aryl Boron Esters Activated by Alkoxides. And the article contained the following:

The cobalt-catalyzed Suzuki biaryl cross-coupling of aryl chloride substrates with aryl boron reagents, activated with more commonly used bases, remained a significant unmet challenge in the race to replace platinum group metal catalysts with Earth-abundant metal alternatives. This highly desirable process can be realized using alkoxide bases, provided the right counterion is employed, strict stoichiometric control of the base is maintained with respect to the aryl boron reagent, and the correct boron ester is selected. Potassium tert-butoxide works well, but any excess of the base first inhibits and then poisons the catalyst. Lithium tert-butoxide performs very poorly, while even catalytic amounts of lithium additives also poison the catalyst. Meanwhile, a neopentane diol-based boron ester is required for best performance. As well as delivering this sought-after transformation, a detailed mechanistic and computational investigations to probe the possible mechanism of the reaction has been discussed and explains the unexpected exptl. observations. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Related Products of 78-26-2

The Article related to biaryl preparation transmetalation key step kinetics linear free energy, aryl chloride boron reagent alkoxide suzuki coupling cobalt catalyst, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Others and other aspects.Related Products of 78-26-2

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Dufour, Jeremy; Neuville, Luc; Zhu, Jieping published an article in 2010, the title of the article was Intramolecular Suzuki-Miyaura reaction for the total synthesis of signal peptidase inhibitors, arylomycins A2 and B2.Name: H-Phg(4-OH)-OH And the article contains the following content:

Development of the total syntheses of arylomycins A1 and B2 is detailed. Key features of our approach include (1) formation of 14-membered meta,meta-cyclophane by an intramol. Suzuki-Miyaura reaction; (2) incorporation of N-Me-4-hydroxyphenylglycine into the cyclization precursor, which avoids the late-stage low-yielding N-methylation step; (3) segment coupling of a fully elaborated peptide side chain to the macrocycle, which makes the synthesis highly convergent. Overall, arylomycin A2 was obtained in 13 steps from L-Tyr for the longest linear sequence, in 13 % overall yield. Arylomycin B2 was synthesized in 10 steps from L-3-nitro-Tyr, in 10 % overall yield. The experimental process involved the reaction of H-Phg(4-OH)-OH(cas: 32462-30-9).Name: H-Phg(4-OH)-OH

The Article related to cyclic peptide arylomycin total synthesis signal peptidase inhibitor rotamer, suzuki miyaura coupling methylhydroxyphenylglycine cyclization peptide coupling, Amino Acids, Peptides, and Proteins: Poly(Amino Acids) and Peptides and other aspects.Name: H-Phg(4-OH)-OH

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On November 15, 2019, Wong, Nicholas; Petronijevic, Filip; Hong, Allen Y.; Linghu, Xin; Kelly, Sean M.; Hou, Haiyun; Cravillion, Theresa; Lim, Ngiap-Kie; Robinson, Sarah J.; Han, Chong; Molinaro, Carmela; Sowell, C. Gregory; Gosselin, Francis published an article.HPLC of Formula: 32462-30-9 The title of the article was Stereocontrolled synthesis of arylomycin-based gram-negative antibiotic GDC-5338. And the article contained the following:

We report herein an efficient, stereocontrolled, and chromatog.-free synthesis of the novel broad spectrum antibiotic GDC-5338. The route features the construction of a functionalized tripeptide backbone, a high-yielding macrocyclization via a Pd-catalyzed Suzuki-Miyaura reaction, and the late-stage elaboration of key amide bonds with minimal stereochem. erosion. Through extensive reaction development and anal. understanding, these key advancements allowed the preparation of GDC-5338 in 17 steps, 15% overall yield, >99 A % HPLC, and >99:1 dr. The experimental process involved the reaction of H-Phg(4-OH)-OH(cas: 32462-30-9).HPLC of Formula: 32462-30-9

The Article related to peptide antibiotic arylomycin based gdc5338 stereocontrolled synthesis crystal structure, tripeptide macrocyclization suzuki miyaura reaction palladium catalyst, Amino Acids, Peptides, and Proteins: Poly(Amino Acids) and Peptides and other aspects.HPLC of Formula: 32462-30-9

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On March 31, 2008, Selvaraju, Suresh B.; Khan, Izhar U. H.; Yadav, Jagjit S. published an article.Recommanded Product: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol The title of the article was Differential biocide susceptibility of the multiple genotypes of Mycobacterium immunogenum. And the article contained the following:

The non-tuberculous mycobacterium Mycobacterium immunogenum colonizes industrial metalworking fluids (MWFs) presumably due to its relative resistance to the currently practiced biocides and has been implicated in occupational respiratory hazards, particularly hypersensitivity pneumonitis. With an aim to understand its inherent biocide susceptibility profile and survival potential in MWF, five different genotypes of this organism, including a reference genotype (700506) and four novel test genotypes (MJY-3, MJY-4, MJY-10 and MJY-12) isolated in our recent study from diverse MWF operations were evaluated. For this, two com. biocide formulations, Grotan (Hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine) and Kathon (5-chloro-2-methyl-4-isothiazolin-3-one) currently practiced for the control of microorganisms, including mycobacteria, in MWF operations were tested. Effect of the fluid matrix on the biocide susceptibility was investigated for the synthetic (S) and semi-synthetic (SS) MWF matrixes. In general, the min. inhibitory concentration values were higher for the HCHO-releasing biocide Grotan than the isothiazolone biocide Kathon. All genotypes (except the reference genotype) showed lower susceptibility in SS as compared to S fluid matrix for Grotan. However, in case of Kathon, a greater susceptibility was observed in SS fluid for majority of the test genotypes (MJY-3, 4 and 10). The test genotypes were more resistant than the reference genotype to either biocide in both fluid types. Furthermore, the individual genotypes showed differential biocidal susceptibility, with MJY-10 being the most resistant. These observations emphasize the importance of using the resistant genotypes of M. immunogenum as the test strains for formulation or development and evaluation of existing and novel biocides, for industrial applications. The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).Recommanded Product: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol

The Article related to bactericide mycobacterium genotype, Microbial, Algal, and Fungal Biochemistry: Antimicrobial Sensitivity and other aspects.Recommanded Product: 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol

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On May 31, 2011, Frenzel, Elrike; Schmidt, Stefan; Niederweis, Michael; Steinhauer, Katrin published an article.COA of Formula: C9H21N3O3 The title of the article was Importance of porins for biocide efficacy against Mycobacterium smegmatis. And the article contained the following:

Mycobacteria are among the microorganisms least susceptible to biocides but cause devastating diseases, such as tuberculosis, and increasingly opportunistic infections. The exceptional resistance of mycobacteria to toxic solutes is due to an unusual outer membrane, which acts as an efficient permeability barrier, in synergy with other resistance mechanisms. Porins are channel-forming proteins in the outer membrane of mycobacteria. The authors used the alamarBlue assay to show that the deletion of Msp porins in isogenic mutants increased the resistance of Mycobacterium smegmatis to isothiazolinones (methylchloroisothiazolinone [MCI]/methylisothiazolinone [MI] and octylisothiazolinone [2-n-octyl-4-isothiazolin-3-one; OIT]), formaldehyde-releasing biocides {hexahydrotriazine [1,3,5-tris (2-hydroxyethyl)-hexahydrotriazine; HHT] and methylenbisoxazolidine [N,N’-methylene-bis-5-(methyloxazolidine); MBO]}, and the lipophilic biocides polyhexamethylene biguanide and octenidine dihydrochloride 2- to 16-fold. Furthermore, the susceptibility of the porin triple mutant against a complex disinfectant was decreased 8-fold compared to wild-type (wt) M. smegmatis. Efficacy testing in the quant. suspension test EN 14348 revealed 100-fold improved survival of the porin mutant in the presence of this biocide. These findings underline the importance of porins for the susceptibility of M. smegmatis to biocides. The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).COA of Formula: C9H21N3O3

The Article related to drug sensitivity mycobacterium porin, Microbial, Algal, and Fungal Biochemistry: Antimicrobial Sensitivity and other aspects.COA of Formula: C9H21N3O3

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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 August 18, 2020, Ozdemir, Ozgun O.; Soyer, Ferda published an article.Related Products of 621-37-4 The title of the article was Pseudomonas aeruginosa Presents Multiple Vital Changes in Its Proteome in the Presence of 3-Hydroxyphenylacetic Acid, a Promising Antimicrobial Agent. And the article contained the following:

Pseudomonas aeruginosa, a widely distributed opportunistic pathogen, is an important threat to human health for causing serious infections worldwide. Due to its antibiotic resistance and virulence factors, it is so difficult to combat this bacterium; thus, new antimicrobial agents are in search. 3-Hydroxyphenylacetic acid (3-HPAA), which is a phenolic acid mostly found in olive oil wastewater, can be a promising candidate with its dose-dependent antimicrobial properties. Elucidating the mol. mechanism of action is crucial for future examinations and the presentation of 3-HPAA as a new agent. In this study, the antimicrobial activity of 3-HPAA on P. aeruginosa and its action mechanism was investigated via shot-gun proteomics. The data, which are available via ProteomeXchange with identifier PXD016243, were examined by STRING anal. to determine the interaction networks of proteins. KEGG Pathway enrichment anal. via the DAVID bioinformatics tool was also performed to investigate the metabolic pathways that undetected and newly detected groups of the proteins. The results displayed remarkable changes after 3-HPAA exposure in the protein profile of P. aeruginosa related to DNA replication and repair, RNA modifications, ribosomes and proteins, cell envelope, oxidative stress, as well as nutrient availability. 3-HPAA showed its antimicrobial action on P. aeruginosa by affecting multiple bacterial processes; hence, it could be categorized as a multitarget antimicrobial agent. The experimental process involved the reaction of 3-Hydroxyphenylacetic acid(cas: 621-37-4).Related Products of 621-37-4

The Article related to proteome pseudomonas hydroxyphenylacetate, Microbial, Algal, and Fungal Biochemistry: Antimicrobial Sensitivity and other aspects.Related Products of 621-37-4

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On November 22, 2018, Marat, Xavier; Ma, Chunyu published a patent.Product Details of 78-26-2 The title of the patent was Resorcinol derivatives for their cosmetic use. And the patent contained the following:

The invention relates to resorcinol derivatives, I (R1, R2 = H, hydrocarbyl, etc.; R3, R4 = H, hydrocarbyl, etc., R3R4 = together O, P heterocycle), and also the salts thereof, the solvates thereof and the optical and/or geometrical isomers thereof, including enantiomers and diastereoisomers, and the racemic mixtures thereof, alone or as a mixture The invention also relates to a cosmetic process for depigmenting, lightening and/or bleaching keratin materials, especially the skin, using these compounds I. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Product Details of 78-26-2

The Article related to resorcinol phosphonate derivative preparation cosmetic use, Organometallic and Organometalloidal Compounds: Phosphorus Compounds and other aspects.Product Details of 78-26-2

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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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Iriondo, Aitziber; Agirre, Ion; Viar, Nerea; Requies, Jesus published an article in 2020, the title of the article was Value-added bio-chemicals commodities from catalytic conversion of biomass derived furan-compounds.Synthetic Route of 111-29-5 And the article contains the following content:

A review. The depletion of fossil resources in the near future and the need to decrease greenhouse gas emissions lead to the investigation of using alternative renewable resources as raw materials. One of the most promising options is the conversion of lignocellulosic biomass (like forestry residues) into bioenergy, biofuels and biochems. Among these products, the production of intermediate biochems. has become an important goal since the petrochem. industry needs to find sustainable alternatives. In this way, the chem. industry competitiveness could be improved as bioproducts have a great potential market. Thus, the main objective of this review is to describe the production processes under study (reaction conditions, type of catalysts, solvents, etc.) of some promising intermediate biochems., such as; alcs. (1,2,6-hexanetriol, 1,6-hexanetriol and pentanediols (1,2 and 1,5-pentanediol)), maleic anhydride and 5-alkoxymethylfuran. These compounds can be produced using 5-hydroxymethylfurfural and/or furfural, which they both are considered one of the main biomass derived building blocks. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Synthetic Route of 111-29-5

The Article related to review furan value added biochem biomass conversion catalysis, Electrochemical, Radiational, and Thermal Energy Technology: Reviews and other aspects.Synthetic Route of 111-29-5

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