Tag: M.W:100-200

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 78-39-7, Name is 1,1,1-Triethoxyethane, SMILES is CC(OCC)(OCC)OCC, in an article , author is Bootwala, Sakina Z., once mentioned of 78-39-7, Safety of 1,1,1-Triethoxyethane.

SYNTHESIS, SPECTROSCOPIC AND BIOLOGICAL CHARACTERIZATION MANGANESE (II), COBALT (II) AND NICKEL (II) COMPLEXES WITH AN ASYMMETRIC BIDENTATE THIAZOLIDINE DERIVATIVE

Mn(II), Co(II) and Ni(II) complexes with a bidendate ligand ethyl 2-(4-oxo-2-phenyl-1,3-thiazolidin-3-yl)-4,5,6,7-tetrahydro-1-benzothiophene-3carboxylate were synthesized and characterized on the basis of elemental analysis, molar conductance measurements, magnetic susceptibility values, UV-vis and IR spectral data. Spectral studies show that the ligand behaves as bidentate chelating agent and bonded to the metal ion through two oxygen atom. Electronic spectra and magnetic susceptibility measurement reveal octahedral geometry for Ni(II) and Co(II) complexes and tetrahedral configuration for Mn(II) complex. The complexes are found to be non-electrolytic in nature on the basis of low molar conductance. These metal complexes were also screened for its antibacterial activity against pathogenic strains causing urinary tract infections and were found to be effective.

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

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 29681-57-0, Name is tert-Butyldimethylsilane, SMILES is C[SiH](C(C)(C)C)C, in an article , author is Maharramov, Abel M., once mentioned of 29681-57-0, COA of Formula: C6H16Si.

CRYSTAL STRUCTURE AND HIRSHFELD SURFACE ANALYSIS OF (E)-5-PHENYL-3-((4-(TRIFLUOROMETHYL)BENZYLIDENE)AMINO)THIAZOLIDIN-2-IMINIUM BROMIDE

In the cation of the title salt, the central thiazolidine ring adopts an envelope conformation. In the crystal N-H center dot center dot center dot Br hydrogen bonds link the components into a bi-dimensional network with the cations and anions stacked parallel to plane (101). The molecular structure shows several positional disorders over -CF3 and thiazolidine fragments and these were modeled. The weak intermolecular interactions in the crystal structure are mainly constituted by H center dot center dot center dot F, H center dot center dot center dot pi and H center dot center dot center dot Br. Hirshfeld surface analysis were used to verify the contributions of the different intermolecular interactions.

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

1070-70-8, Name is 1,4-Butanediol diacrylate, molecular formula is C10H14O4, Product Details of 1070-70-8, belongs to thiazolidines compound, is a common compound. In a patnet, author is Kalhor, Mehdi, once mentioned the new application about 1070-70-8.

SO3H-functionalized Zeolite-Y as an Efficient Nanocatalyst for the Synthesis of N-benzimidazole-2-aryl-4-thiazolidinones and tri-substituted Imidazoles

Background: SO3H-functionalized zeolite-Y was prepared and used as a catalyst for the synthesis of 2-aryl-N-benzimidazole-4-thiazolidinones and tri-substituted imidazoles at ambient conditions. Objective: The goals of this catalytic method include excellent yields and high purity, inexpensive procedure and ease of product isolation, the use of nontoxic and heterogeneous acid catalyst, shorter reaction times and milder conditions. Materials and Methods: NMR spectra were recorded on Brucker spectrophotometer using Me4Si as internal standard. Mass spectra were recorded on an Agilent Technology 5975C VL MSD with tripe-axis detector. FT-1R spectra were obtained with KBr disc on a galaxy series FT-1R 5000 spectrometer. The surface morphology of nanostructures was analyzed by FE-SEM (EVO LS 10, Zeiss, Carl Zeiss, Germany). BET analysis were measured at 196 degrees C by a Japan Belsorb H system after the samples were vacuum dried at 150 degrees C overnight. Results: The NSZ was characterized by FT-1R, FESEM, EDX, XRF, and BET. The catalytic activity of NSZ was investigated for synthesis of 1,3-tiazolidin-4-ones in H2O/Acetone at room temperature. Moreover, NSZ was used for synthesis of tri-substituted imidazoles at 60 degrees C via solvent-free condensation. Different kinds of aromatic aldehydes were converted to the corresponding of products with good to excellent yields. Conclusion: Sulfonated zeolite-Y was as an efficient catalyst for the preparation of N-benzimiclazole-2-aryl-1,3-thiazolidin-4-ones and 2,4,5-triaryl-1H-imidazoles. High reaction rates, elimination toxic solvent, simple experimental procedure and reusability of the catalyst are the important features of this protocol.

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

Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.85-42-7, Name is Hexahydroisobenzofuran-1,3-dione, SMILES is O=C1OC(C2CCCCC21)=O, belongs to thiazolidines compound. In a document, author is Eldehna, Wagdy M., introduce the new discover, Quality Control of Hexahydroisobenzofuran-1,3-dione.

Novel 4/3-((4-oxo-5-(2-oxoindolin-3-ylidene)thiazolidin-2-ylidene) amino) benzenesulfonamides: Synthesis, carbonic anhydrase inhibitory activity, anticancer activity and molecular modelling studies

Herein we report the synthesis of two series of novel 4/3-((4-oxo-5-(2-oxoindolin-3-ylidene)thiazolidin-2-ylidene)amino)benzenesulfonamides (4a-m and 7a-g). All the newly prepared sulfonamides were in vitro investigated as inhibitors of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1) isoforms hCA I, II, IV and IX, using a stopped-flow CO2 hydrase assay. In particular, hCA isoforms II and IX (tumor associated) were more susceptible to inhibition by the synthesized derivatives, with K(1)s in the range of 2.6-598.2 nM for hCA II, and of 16.1-321 nM for hCA IX. All compounds (4a-m and 7a-g) were evaluated for their anti-proliferative activity against breast cancer MCF-7 and colorectal cancer Caco-2 cell lines. Compound 4c was found to be the most potent derivative against MCF-7 (IC50 = 3.96 +/- 0.21 mu M), while 4j was the most active member against Caco-2 cells (IC50 = 5.87 +/- 0.37 mu M). Compound 4c induced the intrinsic apoptotic mitochondrial pathway in MCF-7 cells; evidenced by the enhanced expression of the pro-apoptotic protein Bax and the reduced expression of the anti-apoptotic protein Bc1-2, and the up regulated active caspase-9 and caspase-3 levels. (C) 2017 Elsevier Masson SAS. All rights reserved.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 85-42-7 is helpful to your research. Quality Control of Hexahydroisobenzofuran-1,3-dione.

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

Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 97-90-5, Name is Ethane-1,2-diyl bis(2-methylacrylate), molecular formula is C10H14O4, belongs to thiazolidines compound. In a document, author is Buemi, Maria Rosa, introduce the new discover, Product Details of 97-90-5.

Inhibition of HIV-1 RT activity by a new series of 3-(1,3,4-thiadiazol-2-yl) thiazolidin-4-one derivatives

Non-nucleoside reverse transcriptase inhibitors (NNRTIs) represent potent anti-HIV agents targeting HIV-1 reverse transcriptase (RT), a crucial enzyme for the viral life cycle. We have previously identified a series of NNRTIs bearing a 2,3-diaryl-1,3-thiazolidin-4-one core and some compounds proved to be effective in inhibiting HIV-1 replication at micromolar concentration. As a continuation in this research work we report the design, the synthesis and the structure-activity relationship studies of a further series of 3-(1,3,4-thiadiazol-2-yl)thiazolidin-4-one derivatives containing an arylthioacetamide group as pharmacophoric structural requirement for binding to the RT catalytic area. The new compounds proved to be effective to inhibit RT activity at micromolar concentrations. Finally, docking studies were carried out in order to rationalize the biological results of the new synthesized inhibitors.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 97-90-5. Product Details of 97-90-5.

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

Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, Recommanded Product: 10097-02-6, 10097-02-6, Name is 2,2-Bis(hydroxymethyl)butyric acid, SMILES is CCC(CO)(CO)C(O)=O, belongs to thiazolidines compound. In a document, author is Yennawar, Hemant P., introduce the new discover.

Crystal structures of two 1,3-thiazolidin-4-one derivatives featuring sulfide and sulfone functional groups

The crystal structures of two closely related compounds, 1-cyclohexyl-2-(2-nitrophenyl)-1,3-thiazolidin-4-one, C15H18N2O3S, (1) and 1-cyclohexyl-2-(2-nitrophenyl)-1,3-thiazolidin-4-one 1,1-dioxide, C15H18N2O5S, (2), are presented. These compounds are comprised of three types of rings: thiazolidinone, nitrophenyl and cyclohexyl. In both structures, the rings are close to mutually perpendicular, with interplanar dihedral angles greater than 80 degrees in each case. The thiazolidinone rings in both structures exhibit envelope puckering with the S atom as flap and the cyclohexyl rings are in their expected chair conformations. The two structures superpose fairly well, except for the orientation of the nitro groups with respect to their host phenyl ring, with a difference of about 10 degrees between 1 and 2. The extended structure of 1 has two kinds of weak C-H center dot center dot center dot O interactions, giving rise to a closed ring formation involving three symmetryrelated molecules. Structure 2 has four C-H center dot center dot center dot O interactions, two of which are exclusively between symmetry-related thiazolidinone dioxide moieties and have a parallel ‘give-and-take-fashion’ counterpart. In the other two interactions, the nitrophenyl ring and the cyclohexane ring each offer an H atom to the two O atoms on the sulfone group. Additionally, a C-H center dot center dot center dot pi interaction between a C-H group of the cyclohexane ring and the nitrophenyl ring of an adjacent molecule helps to consolidate the structure.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 10097-02-6. Recommanded Product: 10097-02-6.

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

Synthetic Route of 29681-57-0, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 29681-57-0, Name is tert-Butyldimethylsilane, SMILES is C[SiH](C(C)(C)C)C, belongs to thiazolidines compound. In a article, author is Jaiash, Dareen A., introduce new discover of the category.

DESIGN, SYNTHESIS AND BIOLOGICAL EVALUATION OF NEW PYRROLOAZEPINES WITH POTENTIAL AND SELECTIVE ANTITUMOR ACTIVITY

2-Chloroacetylamino-pyrrolo[1,2-a]azepine-3-ethyl ester 3 was synthesized, condensed with ammonium thiocyanate to obtain a hybrid molecule of pyrrolo [1,2-a]azepine and thiazolidinone moiety 4. Coupling of the obtained hybrid molecule with the appropriate aldehydes or diazonium salt afforded novel substituted hybrids 5a,b and 6. Chemical structures were confirmed by spectral and elemental analysis. The synthesized compounds were tested on liver Hep3B, lung A549, breast MCF7 cancer cell lines and normal fibroblast cells as well, using sulforhodamine-B assay method. Compound 5a showed to be potent and selective to lung A549 cancer cell line (IC50 = 13 nM/mL, S.I. = 2.9). The most potent one against MCF7 was compound 4 with IC50 value equals 12 nM/mL and S.I. = 1.4, Compounds 5b, 6 exhibited high potency and selectivity towards Hep3B cancer cells with IC50 and S.I. equal 15 nM/mL. 10.8 and 9 nM/mL. 285. respectively. The ability of the synthesized compounds 3-6 to act as modulators for cyclin dependent kinases was explored through molecular docking studies.

Synthetic Route of 29681-57-0, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 29681-57-0.

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

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 542-05-2, Name is 3-Oxopentanedioic acid, formurla is C5H6O5. In a document, author is Abu-Hashem, Ameen Ali, introducing its new discovery. Safety of 3-Oxopentanedioic acid.

Synthesis and antimicrobial activity of new 1,2,4-triazole, 1,3,4-oxadiazole, 1,3,4-thiadiazole, thiopyrane, thiazolidinone, and azepine derivatives

4-oxo-4-phenylbutanehydrazide3was reacted with aryl or alkyl isothiocyanates to give the correspondingN-substituted-2-(4-oxo-4-phenylbutanoyl) hydrazine-1-carbothioamide4a-c. Cyclization of thiosemicarbazides4a-cwith sodium hydroxide led to the formation of 3-(4-sub-5-thioxo-1,2,4-triazol-3-yl)-propanone5a-c. Desulfurization of thiosemicarbazides4a-cby mercuric oxide afforded 3-(5-(sub-amino)-1,3,4-oxadiazol-2-yl)-propanone6a-c. The reaction of4a-cwith phosphorus oxychloride gave 3-(5-(sub-amino)-1,3,4-thiadiazol-2-yl)-propanone7a-c. Treatment of4a-cwith ethyl-bromoacetate or alpha-bromopropionic acid gaveN ‘-(3-sub-thiazolidin-2-ylidene)-butanehydrazide8a-cand (N ‘-(3-sub-oxothiazolidin-2-ylidene)-butanehydrazide9a-c. Chlorination of oxothiazolidine-hydrazide9a-cby phosphorus oxychloride affordedN-(3-sub-4-oxothiazolidine)-butane-hydrazonoyl-chloride10a-c. The reaction of10a-cwith mercaptoacetyl-chloride yielded 2-((4-benzoyl-thiopyrane) hydrazono)-3-sub-thiazolidinone11a-c. Also, reacted of10a-cwith hydrazine hydrate affordedN ”-(3-sub-oxothiazolidine)-butane-hydrazon-hydrazide12a-c. The 3-sub-2-((pyridazine) hydrazono) thiazolidinone13a-cwas obtained by cyclization of12a-cvia refluxing in DMF. The reaction and cyclized of9a-cwith chloroacetyl-chloride in ethanolic KOH afforded 1-((3-sub-4-oxothiazolidine) amino)-azepine-dione14a-c. The chemical structures of the new compounds have been confirmed by diverse spectroscopy analyses such as IR, NMR, MS, and elemental analysis. The synthesized compounds were tested for their antimicrobial activity and these compounds were considered (Pyridazin-hydrazono-thiazolidinone13a-c, oxothiazolidin-azepinedione14a-c,N-thiazolidin-hydrazon-hydrazide12a-c, and thiopyran-hydrazono-thiazolidinone11a-c) the most effective as antimicrobial activity.

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

Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 85-42-7, Name is Hexahydroisobenzofuran-1,3-dione, molecular formula is C8H10O3, belongs to thiazolidines compound. In a document, author is Abdullaha, Mohd, introduce the new discover, Category: thiazolidines.

Discovery of benzo[cd]indol-2-one and benzylidene-thiazolidine-2,4-dione as new classes of NLRP3 inflammasome inhibitors via ER-beta structure based virtual screening

The structure-guided virtual screening (VS) has proved to be successful strategy in identification of new scaffolds for biological targets. The overactivity of NLRP3 inflammasome has been implicated in variety of inflammatory diseases including Alzheimer’s disease. The up-regulation of estrogen-receptor beta (ER-beta) activity has been directly linked with inhibition of NLRP3 inflammasome activity. In the present study, we report discovery of new NLRP3 inflammasome inhibitors via ER-beta crystal structure (PDB: 5TOA) guided virtual screening of 20,000 compound library. For experimental validation, top 10 ligands were selected based on structure novelty, docking score, prime MMGB/SA binding affinity and interaction pattern analysis. Amongst the tested compounds, three thiazolidin-4-ones IIIM-1268, IIIM-1269 and IIIM-1270 and benzo[cd]indol-2-one IIIM-1266 have shown 73, 69, 75 and 77% suppression of IL-1 beta release in mouse macrophages (J774A.1 cells) at 10 mu M. Benzylidene-thiazolidine-2,4-diones IIIM-1268 and IIIM-1270 inhibited IL-1 beta release with IC50 of 2.3 and 3.5 mu M and also significantly decreased the protein expression level of mature form of IL-1 beta in western-blot analysis. IIIM-1266 and IIIM-1270 displayed bidentate H-bonding with Arg 346 and Glu 305 residues in the active site of ER-beta; and they also strongly occupied the ADP-binding site of NLRP3 protein. The results presented herein, indicate that ER-beta guided VS can be successfully used to identify new NLRP3 inflammasome inhibitors, which may have potential in the development of novel anti-Alzheimer agents.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 85-42-7. Category: thiazolidines.

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

Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, Computed Properties of C8H18O3, 78-39-7, Name is 1,1,1-Triethoxyethane, SMILES is CC(OCC)(OCC)OCC, belongs to thiazolidines compound. In a document, author is Zhu, Yue, introduce the new discover.

A Facile and Efficient Approach for the Synthesis of 3-Aryl-4-hydroxy-1,3-thiazolidin-2-ones

A facile and efficient method for the synthesis of 3-aryl-4-hydroxy-1,3-thiazolidin-2-ones by the reaction of 1,4-dithiane-2,5-diol with acyl azides is reported. This reaction proceeded well at 80 degrees C to afford products in excellent yields for a wide range of substrates. A possible mechanism has been proposed.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 78-39-7. Computed Properties of C8H18O3.

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