Day: October 13, 2021

Quality Control of 4′-Hydroxyacetophenone. Jeong, J; Kim, KH; Kim, DY; Chandrasekaran, G; Kim, M; Pagire, SH; Dighe, M; Choi, EY; Bak, SM; Kim, EY; Shin, MG; Choi, SY; Ahn, JH in [Jeong, Jieun; Kim, Minhee; Pagire, Suvarna H.; Dighe, Mahesh; Ahn, Jin Hee] Gwangju Inst Sci & Technol, Dept Chem, Gwangju 61005, South Korea; [Kim, Kun-Hee; Chandrasekaran, Gopalakrishnan; Choi, Seok-Yong] Chonnam Natl Univ, Dept Biomed Sci, Med Sch, Gwangju, South Korea; [Kim, Dong-Young] Univ Ulsan, Coll Med, Dept Biomed Sci, Seoul, South Korea; [Bak, Su-Min; Kim, Eun-Young] Kyung Hee Univ, Dept Life & Nanopharmaceut Sci, Seoul, South Korea; [Bak, Su-Min; Kim, Eun-Young] Kyung Hee Univ, Dept Biol, Seoul, South Korea; [Shin, Myung-Geun] Chonnam Natl Univ, Dept Lab Med, Med Sch, Gwangju, South Korea published Identification of new aryl hydrocarbon receptor (AhR) antagonists using a zebrafish model in 2019.0, Cited 18.0. The Name is 4′-Hydroxyacetophenone. Through research, I have a further understanding and discovery of 99-93-4.

A new series of 1,3-diketone, heterocyclic and alpha, beta-unsaturated derivatives were synthesized and evaluated for their AhR antagonist activity using zebrafish and mammalian cells. Compounds 1b, 2c, 3b and 5b showed significant AhR antagonist activity in a transgenic zebrafish model. Among them, compound 3b, and 5b were found to have excellent AhR antagonist activity with IC50 of 3.36 nM and 8.3 nM in a luciferase reporter gene assay. In stem cell proliferation assay, compound 5b elicited marked HSC expansion.

Quality Control of 4′-Hydroxyacetophenone. About 4′-Hydroxyacetophenone, If you have any questions, you can contact Jeong, J; Kim, KH; Kim, DY; Chandrasekaran, G; Kim, M; Pagire, SH; Dighe, M; Choi, EY; Bak, SM; Kim, EY; Shin, MG; Choi, SY; Ahn, JH or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article An approach for the calculation of vaporization enthalpies of aromatic and heteroaromatic compounds at 298.15 K applicable to supercooled liquids WOS:000583948500144 published article about STANDARD MOLAR ENTHALPIES; NORMAL BOILING TEMPERATURE; VAPOR-PRESSURES; THERMODYNAMIC PROPERTIES; HEAT-CAPACITIES; THERMOCHEMICAL PROPERTIES; SUBLIMATION ENTHALPIES; PHASE-TRANSITIONS; ORGANIC-COMPOUNDS; SUBSTITUTED BENZENES in [Solomonov, Boris N.; Yagofarov, Mikhail, I] Kazan Fed Univ, Dept Phys Chem, Kremlevskaya Str 18, Kazan 420008, Russia in 2020, Cited 186. Recommanded Product: m-Methoxyphenol. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6

An approach for the calculation of the vaporization enthalpies of aromatic and heteroaromatic compounds at T = 298.15 K with accuracy competitive with experiment was proposed. The vaporization enthalpies may be calculated from the solution enthalpies of liquid and solvation enthalpies in benzene. The solution enthalpies of liquids were shown to be constant within a given type of aromatic compounds. For a set of 67 liquid and 41 solid aromatic and heteroaromatic compounds not capable of intermolecular hydrogen bonding, it was experimentally demonstrated that the solution enthalpies of liquids or supercooled liquids in benzene were equal to 1 +/- 1 kJ . mol(-1). The way to consider intermolecular hydrogen bonding, e.g., in phenol, aniline, pyrrole derivatives, was also proposed. The methods for solvation enthalpy calculation were proposed previously. The calculated and literature vaporization enthalpies values of 415 aromatic and heteroaromatic compounds were compared. Average absolute deviation amounted to 1.3 kJ . mol(-1). The proposed approach is especially valuable for calculation of the vaporization enthalpies of low-volatile compounds, including those solid at T = 298.15 K. (C) 2020 Elsevier B.V. All rights reserved.

About m-Methoxyphenol, If you have any questions, you can contact Solomonov, BN; Yagofarov, MI or concate me.. Recommanded Product: m-Methoxyphenol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recommanded Product: 80-59-1. Recently I am researching about BIOGENIC SYNTHESIS; ENHANCED ANTIBACTERIAL; MALACHITE GREEN; LEAF EXTRACT; ANTIOXIDANT; DEGRADATION; REDUCTION, Saw an article supported by the . Published in SPRINGER HEIDELBERG in HEIDELBERG ,Authors: Jaffri, SB; Ahmad, KS. The CAS is 80-59-1. Through research, I have a further understanding and discovery of (E)-2-Methylbut-2-enoic acid

Silver nanoparticles were fabricated in the presence and absence of light with silver nitrate and aqueous extract of Prunus cerasifera leaf via facile and one-pot green method. P. cerasifera leaf extract reduced and stabilized the nanoparticles with phytometabolites expunging the need for addition of external reducing agents. Optimized silver nanoparticle syntheses was done with variations in leaf extract concentration, time, temperature, and molarity for deciphering the photocatalytic, antifungal, and antibacterial potential of synthesized nanoparticles. Optical, compositional, and morphological analyses of the synthesized nanoparticles were done by UV-visible spectrometry (UV-Vis), Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). Formation of silver nanoparticles was confirmed firstly through UV-Vis by exhibition of peaks with 400-450 nm. FTIR confirmed the presence of major organic groups responsible for reduction of nanoparticles. AFM confirmed the spherical morphology of the synthesized nanoparticles with remarkable dispersion without any agglomeration. Phytochemical analysis for P. cerasifera leaf metabolites was done by GC-MS. Spherical nanoparticles having a size range of 57-144 nm were obtained with face-centered cubic crystals. The average crystallite size obtained from XRD spectra was 2.34 nm. Enhanced photocatalytic first-order kinetics were obtained for persistent organic pollutants, i.e., crystal violet, methylene blue, and malachite green (R-2 = 0.99, 0.99, 0.98) in less than 15 min. Biomedical and agricultural significance as an antibiotic drug and utilization as a fungicides substitute was explored against nine resistant microbes. Statistically significant variations were analyzed via one-way analysis of variance (ANOVA) and Kruskal-Wallis test and specific multi comparison tests. Active to highly active inhibition zones manifested the use of biogenic silver nanoparticles as potential candidate for applications in biological arenas and as environmental remediators.

About (E)-2-Methylbut-2-enoic acid, If you have any questions, you can contact Jaffri, SB; Ahmad, KS or concate me.. Recommanded Product: 80-59-1

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Formula: C8H8O2. In 2021 CATAL SCI TECHNOL published article about PONNDORF-VERLEY REDUCTION; EPOXIDATION CATALYSTS; STRUCTURAL-CHARACTERIZATION; TRANSFER HYDROGENATION; OLEFIN POLYMERIZATION; QUINONE METHIDES; ACTIVE-SITES; BETA ZEOLITE; EFFICIENT; ETHERIFICATION in [Garg, Shipra; Unruh, Daniel K.; Krempner, Clemens] Texas Tech Univ, Dept Chem & Biochem, Mem Dr & Boston, Lubbock, TX 79409 USA in 2021, Cited 53. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5.

The polyhedral oligosilsesquioxane complexes, {[(isobutyl)(7)Si7O12]ZrOPri center dot(HOPri)}(2) (I), {[(cyclohexyl)(7)Si7O12]ZrOPri center dot(HOPri)}(2) (II), {[(isobutyl)(7)Si7O12]HfOPri center dot(HOPri)}(2) (III) and {[(cyclohexyl)(7)Si7O12]HfOPri center dot(HOPri)}(2) (IV), were synthesized in good yields from the reactions of M(OPri)(4) (M = Zr, Hf) with R-POSS(OH)(3) (R = isobutyl, cyclohexyl), resp. I-IV were characterized by H-1, C-13 and Si-29 NMR spectroscopy and their dimeric solid-state structures were confirmed by X-ray analysis. I-IV catalyze the reductive etherification of 2-hydroxy- and 4-hydroxy and 2-methoxy and 4-methoxybenzaldehyde and vanillin to their respective isopropyl ethers in isopropanol as a green solvent and reagent. I-IV are durable and robust homogeneous catalysts operating at temperatures of 100-160 degrees C for days without significant loss of catalytic activity. Likewise, I-IV selectively catalyze the conversion of 5-hydroxymethylfurfural (HMF) into 2,5-bis(isopropoxymethyl)furane (BPMF), a potentially high-performance fuel additive. Similar results were achieved by using a combination of M(OPri)(4) and ligand R-POSS(OH)(3) as a catalyst system demonstrating the potential of this in situ approach for applications in biomass transformations. A tentative reaction mechanism for the reductive etherification of aldehydes catalysed by I-IV is proposed.

Formula: C8H8O2. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Garg, S; Unruh, DK; Krempner, C or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Safety of 4-Hydroxyquinolin-2(1H)-one. Authors Aly, AA; Hassan, AA; Mohamed, NK; Abd El-Haleem, LE; Brase, S in SAGE PUBLICATIONS LTD published article about in [Aly, Ashraf A.; Hassan, Alaa A.; Mohamed, Nasr K.; Abd El-Haleem, Lamiaa E.] Menia Univ, Fac Sci, Chem Dept, El Minia 61519, Egypt; [Brase, Stefan] Karlsruhe Inst Technol, Inst Biol & Chem Syst Funct Mol Syst IBCS FMS, Eggenstein Leopoldshafen, Germany in 2020, Cited 13. The Name is 4-Hydroxyquinolin-2(1H)-one. Through research, I have a further understanding and discovery of 86-95-3

A novel series of 7,8-dichlorobenzofuro[3,2-c]quinoline-6,9,10(5H)-triones was obtained regioselectively in good yields. The products were formed by the reactions of the 4-hydroxy-2(1H)-quinolinones with 3,4,5,6-tetrachloro-1,2-benzoquinone in tetrahydrofuran as the solvent. Infrared, nuclear magnetic resonance (two-dimensional nuclear magnetic resonance), mass spectra and elemental analysis were used to elucidate the structures of new compounds.

Safety of 4-Hydroxyquinolin-2(1H)-one. About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Aly, AA; Hassan, AA; Mohamed, NK; Abd El-Haleem, LE; Brase, S or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

I found the field of Chemistry very interesting. Saw the article Novel uric acid-based nano organocatalyst with phosphorous acid tags: Application for synthesis of new biologically-interest pyridines with indole moieties via a cooperative vinylogous anomeric based oxidation published in 2021.0. HPLC of Formula: C8H8O2, Reprint Addresses Zarei, M; Zolfigol, MA (corresponding author), Bu Ali Sina Univ, Fac Chem, Dept Organ Chem, POB 6517838683, Hamadan, Hamadan, Iran.; Shi, H (corresponding author), Shanxi Univ, Sch Chem & Chem Engn, Inst Mol Sci, Taiyuan 030006, Peoples R China.. The CAS is 123-11-5. Through research, I have a further understanding and discovery of 4-Methoxybenzaldehyde

In this study, we have designed, synthesized and full characterized a novel biological based acidic nano organocatalyst via condensations reaction of uric acid and phosphorous acid. The obtained compound was named theacrine tetrakis(phosphonic acid) (TTPA) and prepared under refluxing ethanol. This new nano organocatalyst was applied as an efficient and recyclable catalyst for the preparation of novel pyridines with indole moieties via a cooperative vinylogous anomeric based oxidation with good to excellent yields.

HPLC of Formula: C8H8O2. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Kalhor, S; Zarei, M; Sepehrmansourie, H; Zolfigol, MA; Shi, H; Wang, JP; Arjomandi, J; Hasani, M; Schirhagl, R or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

COA of Formula: C7H8O2. Authors Song, CY; Nie, JQ; Ma, C; Lu, CF; Wang, FY; Yang, GC in ELSEVIER published article about in [Song, Chaoyang; Nie, Junqi; Ma, Chao; Lu, Cuifen; Wang, Feiyi; Yang, Guichun] Hubei Univ, Coll Chem & Chem Engn, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Minist Educ Key Lab Synth & Applicat Organ Funct, Wuhan 430062, Peoples R China in 2021, Cited 71. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5

1,2,3-Triazole contained conjugated porous polymers (CPPs) have recently emerged as a new class of efficient photocatalysts. To gain more insight into the excellent photocatalytic activity of this kind of CPPs, herein, we report the design and preparation of a series of 1,2,3-triazole-based CPPs via oxidative coupling polymerization to study their photocatalytic performance. These CPPs have donor-acceptor properties and 1,2,3-triazole serves as an electron acceptor. The resulting CPPs with thiophene, carbazole and diphenylamine as electron donor units, respectively, have distinct porosities and optoelectronic properties, and showed effective photocatalytic performance towards oxidative hydroxylation of arylboric acids and alkylation of vinylarenes with diethyl bromomalonate or bromoacetonitrile. The thiophene contained CPP was a more efficient photocatalyst for the catalytic reactions, which can be attributed to its smaller optical band gap and greater charge separation effi-ciency. Furthermore, PTPT has shown reliable recyclability with no significant loss in its catalytic activity.

COA of Formula: C7H8O2. About Mequinol, If you have any questions, you can contact Song, CY; Nie, JQ; Ma, C; Lu, CF; Wang, FY; Yang, GC or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Quantum chemical study on the ozonolysis mechanism of guaiacol and the structure-reactivity relationship of phenols with hydroxyl, methoxy, and methyl substituents WOS:000664254400002 published article about ORGANIC AEROSOL FORMATION; GAS-PHASE OZONOLYSIS; KINETICS; OXIDATION; 2-METHOXYPHENOL; ATMOSPHERE; COMPOUND; PRODUCTS; RADICALS; PRIORITY in [Cao, Haijie; Wang, Kuikui; Yang, Zhengqiang; Wu, Shijie] Qingdao Univ, Coll Mat Sci & Engn, Inst Mat Energy & Environm, Qingdao 266071, Peoples R China; [Han, Dandan] Heze Univ, Sch Chem & Chem Engn, Heze 274015, Peoples R China in 2021.0, Cited 37.0. Recommanded Product: m-Methoxyphenol. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6

Quantum chemical calculations with the M06-2X method were performed to uncover the ozonolysis mechanism of guaiacol and several hydroxylated, methoxylated, and methylated phenols to improve the understanding of the ozone-induced attenuation of phenolic compounds. The detailed kinetic properties were obtained by the transition state theory (TST) and the Rice – Ramsperger – Kassel – Marcus (RRKM) theory. Results confirm that the primary ozonides originated from guaiacol occupy considerably long retention time than the short-lived primary ozonides formed from vinyl-type compounds in the air. The TST rate constant of guaiacol ozonolysis is calculated with a value of 8.81 x 10-20 cm3 molecule-1 s-1 at room temperature. The RRKM results prove that the rate constant is positively dependent on temperature but shows no relation with pressure. The reactivity of substituted phenols exhibits a strong correlation with the ozone affinity of carbon atoms and the orbital energy difference (ELo-Hac) between the lowest unoccupied molecular orbital of O3 and the highest occupied molecular orbital of phenols. The substituents can reduce the value of ELo-Hac and improve the phenols’ reactivity, especially when they locate at the ortho- and para-position. The substituents also improve the ozone affinity of carbon atoms due to the electron-withdrawing effect. The methyl group delivers a moderate impact on the reactivity compared to hydroxyl and methoxy groups.

Recommanded Product: m-Methoxyphenol. About m-Methoxyphenol, If you have any questions, you can contact Cao, HJ; Wang, KK; Yang, ZQ; Wu, SJ; Han, DD or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2020.0 BIOORG MED CHEM LETT published article about OXIDATIVE STRESS; MECHANISMS; APOPTOSIS; AIF in [Selvaraj, Baskar; Huh, Gyewon; Lee, Jae Wook] Korea Inst Sci & Technol KIST, Nat Prod Res Ctr, 679 Saimdang Ro, Kangnung 25451, Gangwon Do, South Korea; [Selvaraj, Baskar; Bae, Ae Nim; Lee, Jae Wook] Korea Inst Sci & Technol KIST, Convergent Res Ctr Diag Treatment & Care Syst Dem, Seoul 02792, South Korea; [Uyen Tran Tu Nguyen; Kang, Kyungsu] Korea Inst Sci & Technol KIST, Nat Prod Informat Res Ctr, Kangnung 25451, South Korea; [Duc Hung Nguyen] Vietnam Korea Inst Sci & Technol VKIST, Dept Biotechnol, Hanoi, Vietnam; [Mok, Il-Kyoon] Seoul Natl Univ, Inst Food Industrializat, Inst Green Bio Sci & Technol, Gangwon Do 25354, South Korea; [Mok, Il-Kyoon] Seoul Natl Univ, Grad Sch Int Agr Technol, Gangwon Do 25354, South Korea; [Lee, Heesu] Gangnueng Wonju Natl Univ GWNU, Coll Dent, Dept Anat, Kangnung 25457, South Korea; [Kim, Dae Won] Gangneung Wonju Natl Univ GWNU, Coll Dent, Dept Biochem & Mol Biol, Kangnung 25457, South Korea; [Selvaraj, Baskar; Huh, Gyewon; Kang, Kyungsu; Bae, Ae Nim; Lee, Jae Wook] Univ Sci & Technol UST, Div Biomed Sci & Technol, Daejun 34113, South Korea in 2020.0, Cited 24.0. The Name is 3-Hydroxybenzaldehyde. Through research, I have a further understanding and discovery of 100-83-4. Application In Synthesis of 3-Hydroxybenzaldehyde

Seventeen chalcone analogues were synthesized from 7-methoxy-3,4-dihydronaphthalen1(2H)-one and various aromatic aldehydes under basic conditions and their therapeutic properties were studied in mouse hippocampal cell line HT-22 against neuronal cell death induced by glutamate. From this study, we selected an analogue C01 as a active compound which showed significantly high neuroprotection. This compound inhibited Ca2+ influx and reactive oxygen species (ROS) accumulation inside cells. The glutamate-induced cell death was analyzed by flow cytometry and it showed that C01 significantly reduced apoptotic or dead cell induced by 5 mM glutamate. Western blot analysis indicates that glutamate-mediated activation of MAPKs were inhibited by compound C01 treatment. In addition, the C01enhanced Bcl-2 and decreased Bax, the anti and pro apoptotic proteins respectively. Further analysis showed that, C01 prevented the nuclear translocation of AIF (apoptosis inducing factor) and inhibited neuronal cell death. Taken together, compound C01 treatment resulted in decreased neurotoxicity induced by 5 mM of glutamate. Our finding confirmed that compound C01 has neuro-therapeutic potential against glutamate-mediated neurotoxicity.

About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Selvaraj, B; Nguyen, UTT; Huh, G; Nguyen, DH; Mok, IK; Lee, H; Kang, K; Bae, AN; Kim, DW; Lee, JW or concate me.. Application In Synthesis of 3-Hydroxybenzaldehyde

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Zhao, TJ; Zhang, JJ; Wang, HH; Su, J; Li, XH; Chen, JS in [Zhao, Tian-Jian; Zhang, Jun-Jun; Wang, Hong-Hui; Su, Juan; Li, Xin-Hao; Chen, Jie-Sheng] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China; [Su, Juan] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China published Biomimetic Design of a 3 D Transition Metal/Carbon Dyad for the One-Step Hydrodeoxygenation of Vanillin in 2020.0, Cited 36.0. Name: Benzyl Alcohol. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6.

Enzyme catalysts always show an excellent catalytic selectivity, which is important in biochemistry, especially in catalytic synthesis and biopharming. This selectivity is achieved by combining the binding effect induced by the electrostatic effect of the enzyme to attract a specific substrate and then the prearrangement of the substrates inside the enzyme pocket. Herein, we report a proof-of-concept application of an interfacial electrostatic field induced by constructing Schottky heterojunctions to mimic the electrostatic catalysis of an enzyme. In combination with the 3 D structure, a transition metal/carbon dyad was designed by nanoconfinement methods to promote the differential binding effect and the space-induced organization of the reaction intermediate (vanillyl alcohol) to develop a new one-step hydrogenolysis of vanillin for the production of 2-methoxy-4-methylphenol with a remarkably high selectivity (>99 %).

About Benzyl Alcohol, If you have any questions, you can contact Zhao, TJ; Zhang, JJ; Wang, HH; Su, J; Li, XH; Chen, JS or concate me.. Name: Benzyl Alcohol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles