Month: October 2021

An article Celite-Polyaniline supported palladium catalyst for chemoselective hydrogenation reactions WOS:000464452800023 published article about SELECTIVE HYDROGENATION; HETEROGENEOUS CATALYST; PD NANOPARTICLES; FACILE SYNTHESIS; N-ALKYLATION; REDUCTION; ACID; EFFICIENT; SUZUKI; OXIDATION in [Patel, Heta A.; Rawat, Maitreyee; Patel, Arun L.; Bedekar, Ashutosh V.] Maharaja Sayajirao Univ Baroda, Fac Sci, Dept Chem, Vadodara 390002, India in 2019, Cited 110. COA of Formula: C15H12O. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

Polyaniline coated on particles of celite is used as support to load palladium catalyst. This heterogenized Celite center dot PANI center dot Pd system, is used as an efficient catalyst for chemoselective hydrogenation reactions. The catalyst is characterized by usual spectral, analytical techniques and studied for hydrogenation reactions at ambient conditions. The mild reaction conditions allow the control over the reactions and excellent selectivity is achieved in number of conversions. Hydrogenation of a carbon-carbon double bond was favored over other polar pi-bond systems, while labile functional groups such as benzyl ether, benzyl esters, cyano, nitro and halogen remained unaffected. Primary amines were converted to N,N-dimethyl amines with formaldehyde, the double bond of coumarin was selectively hydrogenated without opening of the lactone functionality.

COA of Formula: C15H12O. About Chalcone, If you have any questions, you can contact Patel, HA; Rawat, M; Patel, AL; Bedekar, AV or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Quality Control of Chalcone. Recently I am researching about CATALYZED OXIDATIVE CLEAVAGE; ONE-POT SYNTHESIS; CONJUGATE ADDITION; CARBONYL-COMPOUNDS; CHLOROPERBENZOIC ACID; MICHAEL ADDITION; SODIUM-CHLORITE; CLEAN SYNTHESIS; ALKENES; EPOXIDATION, Saw an article supported by the Department of Science and Technology, New Delhi, IndiaDepartment of Science & Technology (India) [SB/FT/CS-045/2013, EMR/2017/001292]; UGCUniversity Grants Commission, India; Central University of Jharkhand. Published in PERGAMON-ELSEVIER SCIENCE LTD in OXFORD ,Authors: Suresh, M; Kumari, A; Singh, RB. The CAS is 94-41-7. Through research, I have a further understanding and discovery of Chalcone

A transition metal free expedient approach for the C=C bond cleavage of electron deficient alkenes such as arylidene Meldrum’s acid and malononitrile derivatives are discussed. The C=C bond of these compound were cleaved to benzoic acid in good yield at high temperature. Most importantly, with oxone in CH3CN/H2O at 45 degrees C or m-CPBA in DCM or NaClO2 in THE/H2O or PIDA in THE at room temperature furnished benzaldehyde derivatives selectively in excellent yields. (C) 2019 Elsevier Ltd. All rights reserved.

About Chalcone, If you have any questions, you can contact Suresh, M; Kumari, A; Singh, RB or concate me.. Quality Control of Chalcone

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

In 2020.0 CATAL SCI TECHNOL published article about CHEMOSELECTIVE HYDROGENATION; CONJUGATE REDUCTION; ALCOHOLS; OXIDATION; CATALYSIS; TITANIUM; ELECTRON in [Li, Jundan; Wang, Yi; Zhai, Shan; Ma, Dongge] Beijing Technol & Business Univ, Coll Chem & Mat Engn, Dept Chem, Beijing 100048, Peoples R China; [Liu, Anan] Univ Sci & Technol Beijing, Basic Expt Ctr Nat Sci, Beijing, Peoples R China; [Chen, Chuncheng] Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing, Peoples R China in 2020.0, Cited 26.0. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7. Name: Chalcone

The highly selective C = C reduction of alpha,beta-enones was realized by CF3SO3H-modifying noble-metal-free TiO2 photocatalysis. Selectivity for C = C over C = O reduction was dramatically reversed from fair (similar to 42% without CF3SO3H-modifying) to excellent (> 99%) upon only 6 mol% CF3SO3H loading without any noble-metal additive. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and C-13-nuclear magnetic resonance (NMR) demonstrated that CF3SO3H modification results in the alpha,beta-enone polar C = O bond sitting away from rather than near to the active sites of polar TiO2 catalysts.

Name: Chalcone. About Chalcone, If you have any questions, you can contact Li, JD; Liu, AN; Wang, Y; Zhai, S; Ma, DG; Chen, CC or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Product Details of 94-41-7. I found the field of Chemistry very interesting. Saw the article Potassium Carbonate Promoted Nucleophilic Addition of Alkenes with Phosphites published in 2020.0, Reprint Addresses Guo, SM (corresponding author), Nanchang Univ, Dept Chem, Nanchang 330031, Jiangxi, Peoples R China.. The CAS is 94-41-7. Through research, I have a further understanding and discovery of Chalcone.

A facile hydrophosphonylation of alkenes by phosphites promoted by potassium carbonate was developed. The reaction features include easy handling, environmental friendliness, and avoidance of the use of strong bases. A variety of alkenes are tolerated in this reaction, with moderate to excellent yields.

Product Details of 94-41-7. About Chalcone, If you have any questions, you can contact Huang, ZJ; Liu, W; Li, S; Yang, YT; Guo, SM; Cai, H or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

An article Antityrosinase Activity of Combretum micranthum, Euphorbia hirta and Anacardium occidentale Plants: Ultrasound Assisted Extraction Optimization and Profiling of Associated Predominant Metabolites WOS:000553858800221 published article about RESPONSE-SURFACE METHODOLOGY; TYROSINASE INHIBITORS; PHENOLIC-COMPOUNDS; ANTIOXIDANTS; LEAVES; FOOD in [Zeitoun, Hussein; Salameh, Dominique; Lteif, Roger] Univ St Joseph, Fac Sci, Ctr Anal & Rech, Unite Technol & Valorisat Alimentaire, Campus Sci & Technol,POB 11-514, Beirut 11072050, Lebanon; [Khan, Zareen; Banerjee, Kaushik] ICAR Natl Res Ctr Grapes, Natl Reference Lab, Pune 412307, Maharashtra, India in 2020.0, Cited 55.0. Quality Control of Chalcone. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

Tyrosinase is an important component of the enzyme polyphenol oxidase, which upon contact with the phenolic substrates forms the pigment melanin and induces undesirable food browning. The phenolic and triterpenoid compounds that naturally occur in plants are well known as tyrosinase inhibitors. Combretum micranthum (CM) leaves, Euphorbia hirta (EH) plant, and Anacardium occidentale (AO) fruits are traditionally known to have potential anti-tyrosinase activities. The aim of this study was to optimize the ultrasound-assisted extraction of secondary metabolites from these matrices, and to evaluate in tubo the antityrosinase activity of these extracts. Efforts were also taken to profile the secondary metabolites, mainly the phenolic and triterpenoid compounds, in order to understand their probable association with tyrosinase inhibition. The optimal ultrasound-assisted extraction conditions for simultaneous extraction of phenolic, and triterpenoid compounds were determined. The aqueous fraction of these extracts showed significant antityrosinase activity, with the CM leaves exhibiting the strongest inhibitory effect (IC50 of 0.58 g.L-1). The predominant metabolic compounds from these natural extracts were putatively identified by using a high-resolution quadrupole-time of flight (QToF) LC-MS instrument. The high-resolution accurate mass-based screening resulted in identification of 88 predominant metabolites, which included dihydrodaidzein-7-O-glucuronide, micromeric acid, syringic acid, morin, quercetin-3-O-(6 ”-malonyl-glucoside), 4-hydroxycoumarin, dihydrocaffeic acid-3-O-glucuronide, to name some, with less than 5 ppm of mass error.

Quality Control of Chalcone. About Chalcone, If you have any questions, you can contact Zeitoun, H; Khan, Z; Banerjee, K; Salameh, D; Lteif, R or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Authors Zhao, HL; Gao, Q; Zhang, YJ; Zhang, PK; Xu, SM in AMER CHEMICAL SOC published article about TERTIARY BORONIC ESTERS; ASYMMETRIC HYDROBORATION; ENANTIOSELECTIVE HYDROBORATION; ALKENE HYDROBORATION; CARBONYL-COMPOUNDS; BETA-BORATION; BORYLATION; HYDROFUNCTIONALIZATION; AZETIDINES; SECONDARY in [Zhao, Hongliang; Zhang, Panke] Zhengzhou Univ, Coll Chem, Green Catalysis Ctr, Henan Adv Inst Technol, Zhengzhou 450001, Henan, Peoples R China; [Zhao, Hongliang; Gao, Qian; Zhang, Yajuan; Xu, Senmiao] Chinese Acad Sci, Ctr Excellence Mol Sci, Suzhou Res Inst, Lanzhou Inst Chem Phys,State Key Lab Oxo Synth &, Lanzhou 730000, Gansu, Peoples R China; [Xu, Senmiao] Hangzhou Normal Univ, Key Lab Organosilicon Chem & Mat Technol, Minist Educ, Hangzhou 311121, Peoples R China; [Xu, Senmiao] Univ Chinese Acad Sci, Beijing 100049, Peoples R China in 2020.0, Cited 84.0. Name: 1,1,1-Triethoxyethane. The Name is 1,1,1-Triethoxyethane. Through research, I have a further understanding and discovery of 78-39-7

Reported here for the first time is the Ir-catalyzed gamma-selective hydroboration of gamma-substituted allylic amides under mild reaction conditions. A variety of functional groups could be compatible with reaction conditions, affording gamma-branched amides in good yields with <= 97% gamma-selectivity. We have also demonstrated that the obtained borylated products could be used in a series of C-O, C-F, C-Br, and C-C bond-forming reactions. Name: 1,1,1-Triethoxyethane. About 1,1,1-Triethoxyethane, If you have any questions, you can contact Zhao, HL; Gao, Q; Zhang, YJ; Zhang, PK; Xu, SM or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

I found the field of Engineering very interesting. Saw the article Magnetite nanoparticles functionalized with propolis against methicillin resistant strains of Staphylococcus aureus published in 2019.0. Recommanded Product: Chalcone, Reprint Addresses Miguel, MG (corresponding author), Univ Algarve, Fac Sci & Technol, Dept Chem & Pharm, MeditBio, Campus Gambelas, P-8005139 Faro, Portugal.. The CAS is 94-41-7. Through research, I have a further understanding and discovery of Chalcone

Magnetite nanoparticles (MNPs) have been evaluated for inhibiting microbial growth and biofilm formation. In this study the effect of the nanocomposite Moroccan propolis extract / MNPs acting against methicillin resistant strains of Staphylococcus aureus (MRSA) was evaluated. Chemical composition of propolis was established by pyrolysis coupled to gas chromatography and mass spectrometry method (pyrolysis GC/MS). MNPs were obtained through the co-precipitation method. The fabricated nanostructure was characterized by X-ray Diffraction (DRX), Transmission Electron Microscopy (TEM), and Fourier Transform-Infrared Spectroscopy (FTIR). TEM of MNPs provided a particle average size of 15 nm, FTIR spectral analysis enabled a fast way of identification of MNPs, attesting the occurrence of the different combinations. The use of MNPs loaded with propolis and the antibiotic chloramphenicol at Minimum Inhibitory Concentration (MIC) value inhibited the bacterial growth of MSSA (methicillin susceptible strain of S. aureus) and MRSA strains. After the treatment with MNPs-OA-P-CLo nanocomposite (MNPs with oleic acid, propolis and chloramphenicol), the disruption of the bacterial cell was observed by TEM. The combination of propolis and chloramphenicol in free form at MIC value largely impaired both MSSA and MRSA strains as, after 2 h of treatment, no viable cells of MRSA 2 and MRSA 16 were recovered. Hence, the results elucidated a new antibacterial nanocomposite synthesis, for possible applications as prospective nanoantibacterial agents or drug carriers. (C) 2019 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

About Chalcone, If you have any questions, you can contact El-Guendouz, S; Lyoussi, B; Lourenco, JP; da Costa, AMR; Miguel, MG; Dias, CB; Manhita, A; Jordao, L; Nogueira, I; Faleiro, ML or concate me.. Recommanded Product: Chalcone

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

An article Palladium(II)-Catalyzed Three-Component Tandem Cyclization Reaction for the One-Pot Assembly of 4-Arylquinazolines WOS:000579464300003 published article about QUINAZOLINE DERIVATIVES; INHIBITORS; NITRILES in [Wang, Zijuan; Chen, Wenteng; He, Chang; Zhang, Guolin; Yu, Yongping] Zhejiang Univ, Coll Pharmaceut Sci, Zhejiang Prov Key Lab Anticanc Drug Res, 866 Yuhangtang Rd,Zijin Campus, Hangzhou 310058, Peoples R China in 2021.0, Cited 29.0. Name: 1,1,1-Triethoxyethane. The Name is 1,1,1-Triethoxyethane. Through research, I have a further understanding and discovery of 78-39-7

A one-pot method for joining three separate components leading to an assortment of 4-arylquinazolines (27 examples) in good to excellent yields is described. The method consists of a palladium(II)-catalyzed- cascade reaction involving C(sp)-C(sp(2)) coupling followed by intramolecular C-N bond formation. The reaction was readily scaled up to gram quantity and successfully applied to the synthesis of a translocator- protein (TSPO) ligand.

Name: 1,1,1-Triethoxyethane. About 1,1,1-Triethoxyethane, If you have any questions, you can contact Wang, ZJ; Chen, WT; He, C; Zhang, GL; Yu, YP or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Recently I am researching about BORANE REDUCTION; ALPHA,BETA-UNSATURATED KETONES; ENANTIOSELECTIVE ADDITION; POLYETHERS; RECOGNITION; COMPLEXES; CATALYSTS; ESTERS, Saw an article supported by the General Project of the Education Department of Hunan Province, China [17C1524]; Foundation for Young Scholars of Xiangtan University of Science & Technology, China [15QDZ52]. Published in HIGHER EDUCATION PRESS in BEIJING ,Authors: Liu, F; Li, QF; Ouyang, KB; Yang, NF. The CAS is 94-41-7. Through research, I have a further understanding and discovery of Chalcone. Category: thiazolidines

Two chiral polymers based on binaphthol(BINOL) were synthesized. The polymer can be used as a chiral inducer to coordinate with ZnEt2 to form a recoverable self-supporting catalyst, which could be used in the asymmetric catalytic reaction of alpha, beta-unsaturated ketones. The target products of high yield and good enantioselectivity(e.e. value up to 99%) can be obtained under mild conditions. The catalytic activity was not reduced significantly after 4 or 5 cycles of recovery of the recovered polymers.

Category: thiazolidines. About Chalcone, If you have any questions, you can contact Liu, F; Li, QF; Ouyang, KB; Yang, NF or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Authors Zhang, BL; Liu, XB; Xiong, HH; Zhang, Q; Sun, X; Yang, ZH; Xu, S; Zheng, PW; Zhu, WF in ROYAL SOC CHEMISTRY published article about BIOEVALUATION in [Zhang, Binliang; Liu, Xiaobo; Xiong, Hehua; Zhang, Qian; Sun, Xin; Xu, Shan; Zheng, Pengwu; Zhu, Wufu] Jiangxi Sci & Technol Normal Univ, Sch Pharm, Jiangxi Prov Key Lab Drug Design & Evaluat, 605 Fenglin Rd, Nanchang 330013, Jiangxi, Peoples R China; [Yang, Zunhua] Jiangxi Univ Tradit Chinese Med, Coll Pharm, Nanchang 330004, Jiangxi, Peoples R China in 2020.0, Cited 18.0. Name: 1,1,1-Triethoxyethane. The Name is 1,1,1-Triethoxyethane. Through research, I have a further understanding and discovery of 78-39-7

Two series of [1,2,4]triazolo[4,3-a]pyrazine derivatives bearing 4-oxo-pyridazinone moieties (compounds 21a-l and 22a-l) were designed and their IC50 values were evaluated against three cancer cell lines (A549, MCF-7 and HeLa) and c-Met kinase. Among them, the compound with most potential, 22i, exhibited excellent anti-tumor activity against A549, MCF-7 and HeLa cancer cell lines with IC50 values of 0.83 +/- 0.07 mu M, 0.15 +/- 0.08 mu M and 2.85 +/- 0.74 mu M, respectively, and it also possessed superior c-Met kinase inhibition ability at the nanomolar level (IC50 = 48 nM). Moreover, dose-dependent experiments, AO fluorescence staining, cell cycle assay, Annexin V-FITC/PI staining and docking studies were carried out in this study. The results demonstrated that compound 22i could be a potential c-Met kinase inhibitor.

Name: 1,1,1-Triethoxyethane. About 1,1,1-Triethoxyethane, If you have any questions, you can contact Zhang, BL; Liu, XB; Xiong, HH; Zhang, Q; Sun, X; Yang, ZH; Xu, S; Zheng, PW; Zhu, WF or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com