Tag: M.W=200-250

An article Water hyacinth ash: an efficient green catalyst for the synthesis of beta-amino carbonyl/nitrile compounds by aza-Michael reaction at room temperature WOS:000532826500087 published article about BIODIESEL PRODUCTION; PALLADIUM NANOPARTICLES; CONVENIENT SYNTHESIS; CONJUGATE ADDITION; EXTRACT; SOLVENT; BASE; ACID; OIL; NITRATE in [Talukdar, Anjumani; Deka, Dibakar Chandra] Gauhati Univ, Dept Chem, Gauhati 781014, Assam, India; [Deka, Dibakar Chandra] Mahabdev Univ, PO Dikrong, Narayanpur 784164, Assam, India in 2020.0, Cited 44.0. Safety of Chalcone. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

Water hyacinth ash is found to be an efficient and reusable catalyst for the synthesis of beta-amino carbonyl/nitrile compounds by aza-Michael reaction of amines with alpha,beta-unsaturated compounds at room temperature under solvent free condition. Due to low cost of the catalyst, good activity, ease of handling and easy recovery with high yields of the products in short reaction time, easy workup procedure, mild reaction condition, the protocol is highly applicable in synthetic organic chemistry.

About Chalcone, If you have any questions, you can contact Talukdar, A; Deka, DC or concate me.. Safety of Chalcone

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

HPLC of Formula: C15H12O. Authors Yang, JJ; Sun, ZZ; Yan, KL; Dong, HZ; Dong, HY; Cui, JK; Gong, XT; Han, SL; Huang, LM; Wen, JW in ROYAL SOC CHEMISTRY published article about in [Yang, Jianjing; Yan, Kelu; Dong, Haozhe; Dong, Hongyan; Cui, Jiakai; Gong, Xutao; Han, Shilin; Wen, Jiangwei] Qufu Normal Univ, Coll Chem & Chem Engn, Inst Med & Mat Appl Technol, Qufu 273165, Shandong, Peoples R China; [Sun, Zongzhao; Huang, Limin] Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China in 2021.0, Cited 18.0. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

Single-atom photocatalysis as an important organic transformation strategy has received increasing attention, with the performances largely depending on the design of catalysts. This protocol involves initially the fabrication of a single-atom photocatalyst Ni/TiO2 for the visible-light-induced site-selective sulfonation of enamides to give amidosulfones with 36 examples up to 99% yield. The experimental results show that this single-atom photocatalyst Ni/TiO2 can achieve site-selective sulfonation of enamide to construct alpha-amidosulfones and beta-propionamidosulfones under visible light. Importantly, such a single-atom photocatalysis-based synthesis system exhibits favorable recyclability, high turnover number (up to 18 963), excellent tolerance of functional groups, and can be easily scaled up with good efficiency.

HPLC of Formula: C15H12O. About Chalcone, If you have any questions, you can contact Yang, JJ; Sun, ZZ; Yan, KL; Dong, HZ; Dong, HY; Cui, JK; Gong, XT; Han, SL; Huang, LM; Wen, JW or concate me.

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

An article Catalytic asymmetric synthesis of N-substituted tetrahydroquinoxalines via regioselective Heyns rearrangement and stereoselective transfer hydrogenation in one pot WOS:000637925000013 published article about ENANTIOSELECTIVE HYDROGENATION; QUINOXALINES; DISCOVERY; INHIBITORS; REDUCTION; EFFICIENT; LIGANDS; ROUTE; CETP in [Huang, Jin; Li, Guang-xun; Yang, Gao-feng; Fu, Ding-qiang; Nie, Xiao-kang; Cui, Xin; Tang, Zhuo] Chinese Acad Sci, Nat Prod Res Ctr, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China; [Huang, Jin] Univ Chinese Acad Sci, Beijing, Peoples R China; [Zhao, Jin-zhong] Shanxi Agr Univ, Coll Art & Sci, Taigu 030800, Shanxi, Peoples R China in 2021.0, Cited 40.0. COA of Formula: C15H12O. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

N-Substituted tetrahydroquinoxalines (37 examples) were step-economically obtained in good yield (<97%) and ee (<99%) with readily available substrates. The reaction proceeds through an interesting regioselective Heyns rearrangement/enantioselective transfer hydrogenation in one pot. The substrate scope and the reaction mechanism were systematically investigated. COA of Formula: C15H12O. About Chalcone, If you have any questions, you can contact Huang, J; Li, GX; Yang, GF; Fu, DQ; Nie, XK; Cui, X; Zhao, JZ; Tang, Z or concate me.

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

Authors Salas, AL; Mercado, MI; Orqueda, ME; Uriburu, FCM; Garcia, ME; Perez, MJ; Alvarez, MD; Ponessa, GI; Maldonado, LM; Zampini, IC; Isla, MI in WILEY published article about RADICAL-SCAVENGING ACTIVITY; CHEMICAL-COMPOSITION; ANTIOXIDANT ACTIVITY; SAN-JUAN; CHALCONES; PUNCTATA; EXTRACTS; REGIONS; ANTIBACTERIAL; MANAGEMENT in [Salas, Ana L.; Orqueda, Maria Eugenia; Uriburu, Florencia M. Correa; Perez, Maria Jorgelina; Alvarez, Maria de los Angeles; Zampini, Iris Catiana; Isla, Maria Ines] CONICET UNT, Inst Bioprospecc & Fisiol Vegetal INBIOFIV, RA-4000 San Miguel De Tucuman, Tucuman, Argentina; [Salas, Ana L.; Uriburu, Florencia M. Correa; Zampini, Iris Catiana; Isla, Maria Ines] Univ Nacl Tucuman, Fac Ciencias Nat, RA-4000 San Miguel De Tucuman, Tucuman, Argentina; [Mercado, Maria Ines; Garcia, Maria Elena; Ponessa, Graciela I.; Zampini, Iris Catiana; Isla, Maria Ines] Fdn Miguel Lillo, Area Bot, Inst Morfol Vegetal, RA-4000 San Miguel De Tucuman, Tucuman, Argentina; [Uriburu, Florencia M. Correa; Maldonado, Luis Maldonado] Inst Nacl Tecnol Agr INTA, Estn Expt Agr Famailla, RA-4132 Famailla, Tucuman, Argentina in 2020.0, Cited 48.0. Recommanded Product: 94-41-7. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

The effect of Argentine propolis extracts against enzymes related to metabolic syndrome and oxidative stress, as well as the botanical origin of raw propolis, were studied. Histological and chemical analyses of propolis samples revealed that the botanical origin isZuccagnia punctata, an Argentine medicinal plant. The melissopalynological analysis showed both pollen grains ofZ. punctataand the other plant species. This result indicates that the differences found in the botanical remains compared to the palynological studies may have been caused by the bees selecting resinous shrubs mainly ofZ. punctatafor the production of propolis and other plants with flowers for the production of honey. The richness of propolis was remarkable in two flavonoid precursors (2 ‘,4 ‘-dihydroxy-3 ‘-methoxychalcone, 2 ‘,4 ‘-dihydroxychalcone), the major chemical components ofZ. punctata. The hydroalcoholic extracts of Argentine propolis andZ. punctatawere able to inhibit enzymes associated with the metabolic syndrome, including alpha-glucosidase, alpha-amylase and lipase, with IC(50)values between 7 to 14, 37 to 48, and 13 to 28 mu g/mL, respectively. Biological activity was mainly attributed to chalcones. Oxygen and nitrogen reactive species scavenging activity was determined by the assays of superoxide radical (O-2(center dot-)), hydroxyl radical (HO center dot), hydrogen peroxide (H2O2), nitric oxide (NO center dot), and cation radical (ABTS(center dot+)). Results showed SC(50)values between 115 to 278, 12.50 to 46; 39 to 92; 50 to 104.50 and 23 to 33.75 mu g/mL, respectively. This study suggests for the first time that propolis from Argentina is highly effective in inhibiting enzymes related to the metabolic syndrome and in free-radical scavenging that would justify its use as a dietary supplement or as a functional ingredient in special food. Practical Application Propolis from Catamarca, Argentina, is traditionally used as medicine and food. Its botanical origin isZuccagnia punctata, an endemic plant species popularly used as a medicine in Argentina. Propolis has the ability to regulate the activity of enzymes involved in the carbohydrate and lipid metabolism, and consequently in metabolic syndrome. Besides, its antioxidant capacity makes it a natural product that can be used as a dietary supplement or as a functional ingredient in special foods. It is important to highlight that in the Argentine Food Code, propolis was incorporated in 2008 as a dietary supplement and the present results give major added value to this product.

About Chalcone, If you have any questions, you can contact Salas, AL; Mercado, MI; Orqueda, ME; Uriburu, FCM; Garcia, ME; Perez, MJ; Alvarez, MD; Ponessa, GI; Maldonado, LM; Zampini, IC; Isla, MI or concate me.. Recommanded Product: 94-41-7

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

An article Preparation of Modified Chitosan Microsphere-Supported Copper Catalysts for the Borylation of alpha,beta-Unsaturated Compounds WOS:000489104300043 published article about CU; PD; SUZUKI; GREEN; BORATION; FTIR in [Wang, Wei; Xiao, Zufeng; Huang, Chaofan; Zheng, Kewang; Luo, Yin; Dong, Yumin; Shen, Zitong; Li, Wei; Qin, Caiqin] Hubei Engn Univ, Sch Chem & Mat Sci, Xiaogan 432000, Peoples R China; [Qin, Caiqin] Wuhan Univ, Key Lab Biol Resources & Environm Biotechnol, Wuhan 430000, Hubei, Peoples R China in 2019.0, Cited 46.0. Recommanded Product: 94-41-7. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

Chitosan microspheres modified by 2-pyridinecarboxaldehyde were prepared and used in the construction of a heterogeneous catalyst loaded with nano-Cu prepared by a reduction reaction. The chemical structure of the catalyst was investigated by Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and X-ray Photoelectron Spectroscopy (XPS). Under mild conditions, such as no ligand at room temperature, the catalyst was successfully applied to catalyze the borylation of alpha,beta-unsaturated receptors in a water-methanol medium, yielding 17%-100% of the corresponding beta-hydroxy product. Even after repeated use five times, the catalyst still exhibited excellent catalytic activity.

About Chalcone, If you have any questions, you can contact Wang, W; Xiao, ZF; Huang, CF; Zheng, KW; Luo, Y; Dong, YM; Shen, ZT; Li, W; Qin, CQ or concate me.. Recommanded Product: 94-41-7

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

In 2019.0 DESALIN WATER TREAT published article about MUNICIPAL WASTE-WATER; HEAVY-METALS; CADMIUM BIOSORPTION; AQUEOUS-SOLUTIONS; NUTRIENT REMOVAL; CULTIVATION; RECOVERY; BIOMASS; BATCH in [Rajasulochana, P.; Preethy, V.] Bharath Univ, Chennai 600073, Tamil Nadu, India in 2019.0, Cited 43.0. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7. Name: Chalcone

Novel methodologies are essential to reduce the concentrations of nutrients, microbes and chemicals from sewage prior to discharge into the environment. These are required to preserve and maintain the environmental conditions and human health. Although several techniques exist for the reduction of the chemicals and microbes, the efficacy of the techniques is not significant due to significant physical and structural diversity. Treatment of sewage with microalgae has gained popularity over the past few years, and limited investigations were reported in the literature. The present study deals with the treatment of household sewage treatment plant by using green algae, namely, Scenedesmus, Chlorella and their combination. During the experiment, it was observed that the algae grow under adverse condition and utilised the available nutrient for their survival. Further, the advantage of algae treatment is that they are efficient, ecofriendly, renewable and very much cost-efficient. Thus, many disorders can be prevented by using this treatment. The new study on mechanism of degradation and isolation of commercially important enzymes will be very significant.

Name: Chalcone. About Chalcone, If you have any questions, you can contact Rajasulochana, P; Preethy, V or concate me.

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

HPLC of Formula: C15H12O. Recently I am researching about IN-VITRO; DERIVATIVES; PARASITES; ANALOGS; HIT, Saw an article supported by the Ministerio de Ciencia, Tecnologia e Innovacion – Minciencias; Universidad de Antioquia [111571249860, 061-2016]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Gonzalez, LA; Upegui, YA; Rivas, L; Echeverri, F; Escobar, G; Robledo, SM; Quinones, W. The CAS is 94-41-7. Through research, I have a further understanding and discovery of Chalcone

Chalcones are a group of natural products with many recognized biological activities, including antiparasitic activity. Although a lot of chalcones have been synthetized and assayed against parasites, the number of structural features known to be involved in this biological property is small. Thus, in the present study, 21 chalcones were synthesized to determine the effect of substituents in the A and B rings on the activity againstLeishmania braziliensis, Trypanosoma cruzi, andPlasmodium falciparum. The compounds were active againstL. braziliensisin a structure-dependent manner. Only one compound was very active againstT. cruzi, but none of them had a significant antiplasmodial activity. The electron-donating substituents in ring B and the hydrogen bonds at C-2 ‘ with carbonyl affect the antiparasitic activity.

HPLC of Formula: C15H12O. About Chalcone, If you have any questions, you can contact Gonzalez, LA; Upegui, YA; Rivas, L; Echeverri, F; Escobar, G; Robledo, SM; Quinones, W or concate me.

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

COA of Formula: C15H12O. Recently I am researching about DRUG-DELIVERY; MOLECULAR DOCKING; INHIBITION; BETA; ENHANCEMENT; TARGETS; MODEL, Saw an article supported by the . Published in TAYLOR & FRANCIS INC in PHILADELPHIA ,Authors: Chaudhary, M; Kumar, N; Baldi, A; Chandra, R; Babu, MA; Madan, J. The CAS is 94-41-7. Through research, I have a further understanding and discovery of Chalcone

Inspired by the synergistic effects of hetero-aromatic scaffolds on curcumin, a novel array of pyrazoline substituted curcumin analogs was designed. Multi-scale computational studies were carried out to target the proposed analogs on human kinase beta (IKK-beta), a potential anti-cancer target. In molecular docking analysis, all the eleven molecules were observed to bind the target site and 4-bromo-4′-chloro analog displayed three hydrogen bond interactions with a docking score of -11.534 kcal/mol higher than parent molecule, curcumin (docking score = -7.12 kcal/mol) as the propellant shaped of analogs aided in proper binding with Kinase Domain binding pocket. The molecular dynamics and simulations studies revealed that the stable complexes of lead molecule were developed as the minimal deviations per residue of protein found within the range of 0.11 to 0.92 angstrom. The proposed compounds were synthesized, characterized and biologically evaluated against human cervical cancer cell line, HeLa, using standard MTT cell assay. Bio-evaluation studies exhibited superior cytotoxic profile for many analogs as Chloro bromo analog with IC50 value (8.7 mu g/mL) exhibited fivefolds improvement in the potency in comparison to curcumin (IC50 = 42.4 mu g/mL) but was less potent than the standard drug, paclitaxel (IC50 = 0.008 mu g/mL). The apoptotic effect was evaluated in the terms of caspase-3 enzyme cleavage and exhibited 70.5% of apoptosis significantly (p < 0.05) higher than 19.9% induced by curcumin. In short, 4-bromo-4'-chloro analog was the potent cytotoxic agent in this structural class and must be evaluated further under a set of stringent parameters for transforming in to a clinically viable therapeutic molecule. Communicated by Ramaswamy H. Sarma COA of Formula: C15H12O. About Chalcone, If you have any questions, you can contact Chaudhary, M; Kumar, N; Baldi, A; Chandra, R; Babu, MA; Madan, J or concate me.

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

An article Controlling the selectivity and efficiency of the hydrogen borrowing reaction by switching between rhodium and iridium catalysts WOS:000487514400010 published article about ALPHA-ALKYLATION; C-ALKYLATION; KETONES; ALCOHOLS; AMIDES; DEHYDROGENATION; NANOPALLADIUM; COMPLEXES; ESTERS in [Wang, Danfeng; McBurney, Roy T.; Pernik, Indrek; Messerle, Barbara A.] Macquarie Univ, Dept Mol Sci, N Ryde, NSW 2109, Australia in 2019.0, Cited 47.0. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7. Recommanded Product: 94-41-7

The catalytic alkylation of ketones with alcohols via the hydrogen borrowing methodology (HB) has the potential to be a highly efficient approach for forming new carbon-carbon bonds. However, this transformation can result in more than one product being formed. The work reported here utilises bidentate triazole-carbene ligated iridium and rhodium complexes as catalysts for the selective formation of alkylated ketone or alcohol products. Switching from an iridium centre to a rhodium centre in the complex resulted in significant changes in product selectivity. Other factors – base, base loading, solvent and reaction temperature – were also investigated to tune the selectivity further. The optimised conditions were used to demonstrate the scope of the reaction across 17 ketones and 14 alcohols containing a variety of functional groups. A series of mechanistic investigations were performed to probe the reasons behind the product selectivity, including kinetic and deuterium studies.

About Chalcone, If you have any questions, you can contact Wang, DF; McBurney, RT; Pernik, I; Messerle, BA or concate me.. Recommanded Product: 94-41-7

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

An article Asymmetric Transfer Hydrogenation in Thermomorphic Microemulsions Based on Ionic Liquids WOS:000487577100006 published article about AROMATIC KETONES; TRANSFER REDUCTION; CHIRAL LIGANDS; WATER; CATALYST; COMPLEXES; RUTHENIUM; IMINES; RESOLUTION in [Hejazifar, Mahtab; Palvoelgyi, Adam Mark; Bitai, Jacqueline; Lanaridi, Olga; Bica-Schroeder, Katharina] TU Wien, Inst Appl Synthet Chem, Getreidemarkt 9-163, A-1060 Vienna, Austria in 2019.0, Cited 57.0. Recommanded Product: Chalcone. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

A thermomorphic ionic-liquid-based microemulsion system was successfully applied for the Ru-catalyzed asymmetric transfer hydrogenation of ketones. On the basis of the temperature-dependent multiphase behavior of the targeted microemulsion, simple product separation as well as catalyst recycling could be realized. The use of water-soluble ligands improved the immobilization of the catalyst in the microemulsion phase and significantly decreased the catalyst leaching into the organic layer upon extraction of the product. Eventually, the optimized microemulsion system could be applied to a wide range of aromatic ketones that were reduced with good isolated yields (up to 98%) and enantioselectivities (up to 97%), while aliphatic ketones were less successful.

Recommanded Product: Chalcone. About Chalcone, If you have any questions, you can contact Hejazifar, M; Palvolgyi, AM; Bitai, J; Lanaridi, O; Bica-Schroder, K or concate me.

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