Day: April 13, 2021

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 14618-80-5, Name is (R)-2-((Benzyloxy)methyl)oxirane, molecular formula is C10H12O2. In an article, author is Pampillon, Clara,once mentioned of 14618-80-5, Recommanded Product: (R)-2-((Benzyloxy)methyl)oxirane.

Synthesis and cytotoxicity studies of new dimethylamino-functionalised and aryl-substituted titanocene anti-cancer agents

From the carbolithiation of 6-N,N-dimethylamino fulvene (3a) and different lithiated aryl species [p-N,N-dimethylanilinyl lithium, p-anisyl lithium and 4-lithio-benzo[1.3]dioxole (2a-c)], the corresponding lithium cyclopentadienide intermediates 4a-c were formed. These three lithiated intermediates underwent a transmetallation reaction with TiCl4 resulting in dimethylamino-functionalised and aryl-substituted titanocenes 5a-c. When these titanocenes were tested against LLC-PK cells, the IC50 values obtained were of 54, 45 and 26 mu M for titanocenes 5a, b and c, respectively. The most cytotoxic titanocene in this paper, 5c is approximately 10 times less cytotoxic than cis-platin, which showed an IC50 value of 3.3 mu M, when tested on the LLC-PK cell line, but approximately 100 times better than titanocene dichloride. (C) 2007 Elsevier Masson SAS. All rights reserved.

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Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 106-91-2, Name is Oxiran-2-ylmethyl methacrylate, SMILES is CC(C(OCC1OC1)=O)=C, belongs to dioxoles compound. In a document, author is Zezula, J, introduce the new discover, Product Details of 106-91-2.

Intramolecular Diels-Alder cycloadditions of cis-cyclohexadienediols derived enzymatically from (2-azidoethyl)benzene. Construction of highly functionalized bridged isoquinoline synthons

(3aR,7aS)-4-(2-Azidoethyl)-2,2-dimethyl-3a,7a-dihydrobenzo[1,3]dioxole (22) was converted in two steps to trienes 23 and 24, which upon heating underwent intramolecular Diels-Alder reactions to give mixtures of isomeric 11,11-dimethyl-5-oxo-10,12-dioxa-4-azatetracyclo[6.5.2.0(1.6).0(9,13)]pentadec-14-ene-7-carboxylates 25, 26 and 27, 28, respectively. These products were separated and identified. For comparison, intermolecular Diels-Alder cycloaddition of diene 22 with maleic anhydride was carried out. Products of this reaction, 1-(2-azidoethyl)-4,4-dimethyl-3,5,10-trioxatetracyclo[5.5.2.0(2,6).0(8,12)]tetradec-13-ene-9,11-diones (29 and 30) were converted to methyl ester analogues of 31 and 32 in a two-step sequence. The stereochemical outcome of these cycloadditions is discussed as well as their possible utilization in organic synthesis, especially in total synthesis of some alkaloids.

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 106-91-2 is helpful to your research. Product Details of 106-91-2.

Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 14618-80-5, Name is (R)-2-((Benzyloxy)methyl)oxirane, molecular formula is C10H12O2. In an article, author is Silva Oliveira, Thiago Levi,once mentioned of 14618-80-5, Recommanded Product: 14618-80-5.

Electrochemical Behavior and Antioxidant Activity of Hibalactone

Hydrocotyle umbellata L. is a groundcover plant that has been used in the folk medicine of Argentina, Brazil, Cuba e India, mainly to reduce inflammatory processes. The lignan, hibalactone, can be isolated from the roots of the plant. In the anti-inflammatory and antioxidant activity of such natural products, it is believed that the mechanism of action involves the butyrolactone ring, which would act as free pharmacophore. In this study, electrochemical, spectrometric and computational chemistry approaches were used to evaluate the lignan antioxidant activity and electro-oxidation pathway. Electrochemical measurements were performed in a 3 mL cell, operated in a three electrode system, consisting in an Ag/AgCl reference electrode, platinum as counter electrode and glassy carbon electrode was used as working electrode. Radical scavenging assays were performed with DPPH and ABTS. In the computational chemistry approach geometry, optimization was performed with semi empirical calculations (PM3) and the orbitals/charges calculations were performed by the extended Huckel method. The voltammetry showed a very slight variation with pH alteration, which can be justified by lactone hydrolysis that occurs in acidic and basic pH. In the HOMO and total charge density distribution it was possible to observe that the higher prevalence was in the benzo[1,3]dioxole rings and in the alkenes/alkanes in proximity with the lactone ring. The hibalactone displayed a single quasi-reversible electro-oxidation. Given the HOMO and charge density distribution in the lignan, more so the single oxidation in the evaluated potential, it is reasonable to infer that the alkene bonded with the lactone ring was a probable site of oxidation.

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Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

Let¡¯s face it, organic chemistry can seem difficult to learn, HPLC of Formula: C5H10O5, Especially from a beginner¡¯s point of view. Like 10323-20-3, Name is D-Arabinose, molecular formula is C5H6O2, belongs to benzofurans compound. In a document, author is Li, Yan, introducing its new discovery.

9-{[4-(Dimethylamino)benzyl]amino}-5-(3,4,5-trimethoxyphenyl)-5,5a,8a,9-tetrahydrofuro[3 ‘,4 ‘:6,7]naphtho[2,3-d][1,3]dioxol-6(8H)-one

In the title compound, C31H34N2O7, the fused tetrahydrofuran and six-membered rings each display an envelope conformation. The dihedral angles between the benzene ring of the benzo[d][1,3]dioxole and the other two benzene rings are 89.68 (3) and 63.38 (2)degrees. In the crystal, weak intermolecular C-H…O hydrogen bonds link the molecules.

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Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 43157-50-2, Name is 2-Thioadenosine, molecular formula is C10H13N5O4S. In an article, author is Matos, M. Agostinha R.,once mentioned of 43157-50-2, Computed Properties of C10H13N5O4S.

Experimental and computational thermochemistry of 1,3-benzodioxole derivatives

The standard (p degrees = 0.1 MPa) molar energies of combustion in oxygen, at T = 298.15 K, of four 1,3-benzodioxole derivatives (5-oxoethyl-1,3-benzodioxole, 5-cyano-1,3-benzodioxole, 5-nitro-1,3-benzodioxole, and 5-methyl-1,3-benzodioxole) were measured by static bomb calorimetry. The standard molar enthalpies of vaporization or of sublimation, at T = 298.15 K, were measured by Calvet microcalorimetry. Combining these results, the standard molar enthalpies of formation of the compounds in the gas phase, at T = 298.15 K, have been calculated: 5-oxoethyl-1,3-benzodioxole (-319.3 +/- 2.8) kJ.mol(-1); 5-cyano-1,3-benzodioxole (-23.2 +/- 2.2) kJ.mol(-1); 5-nitro-1,3-benzodioxole (-176.0 +/- 3.2) kJ.mol(-1) and 5-methyl-1,3-benzodioxole (-184.7 +/- 3.5) kJ.mol(-1). The most stable geometries of all the compounds were obtained using the density functional theory with the B3LYP functional and two basis sets: 6-31G** and 6-311G**. The nonplanarity of the molecules was analyzed in terms of the anomeric effect, which is believed to arise from the interaction between a nonbonded oxygen p(pi) orbital and the empty orbital sigma*(CO) involving the other oxygen atom. Calculations were performed to obtain estimates of the enthalpies of formation of all the substituted benzodioxoles using appropriate isodesmic reactions. There is good agreement between theoretical and experimental results. This agreement allows us to estimate the enthalpies of formation of some 1,3-benzodioxole derivatives whose experimental study was impossible.

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Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 4330-21-6, Name is Hoffer’s chlorosugar, molecular formula is , belongs to dioxoles compound. In a document, author is Mansour, Eman, Safety of Hoffer’s chlorosugar.

A new series of thiazolyl pyrazoline derivatives linked to benzo[1,3]dioxole moiety: Synthesis and evaluation of antimicrobial and anti-proliferative activities

2-(5-(Benzo[d][1,3]dioxol-5-yl)-3-(naphthalen-1-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-(4-substituted phenyl)thiazole (7) and thiazole derivatives (9) were synthesized via reaction of 4,5-dihydro-1H-pyrazoles (5a,b) with substituted phenacyl bromide and a number of alpha-halo-compounds respectively. Also, (E)-2-(5-(benzo[d][1,3]dioxol-5-yl)-3-(naphthalen-1-yl)-4,5 dihydro-1H-pyrazol-1-yl)-4-methyl-5-(substituted phenyldiazenyl)thiazole (11) were prepared through reactions of carbothioamide (5a,b) with hydrazonoyl halides. In addition, thioamides (5a-b) were used as starting materials for preparation of thiazoles (12a-b) and benzylidene thiazoles (13a-b). Most of synthesized compounds show interesting biological properties as antimicrobial and antiproliferative activities, the results of minimum inhibitory concentration showed that pyrazole derivative 7c (MIC: 0.23 mg/mL) showed better results when compared with 11c and 12a (MIC: 0.1-0.125 mg/mL) as obtained from their MIC values. On the other hand, 2-(5-(benzo[d][1,3]dioxol-5-yl)-3-(naphthalen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-(4-chlorophenyl) thiazole (7c) can be considered as the most promising anti-proliferative agent against HCT-116 cancer cells owing to its notable inhibitory effect on HCT-116 cells with an IC50 value of 6.19 mu M.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 4330-21-6, in my other articles. Safety of Hoffer’s chlorosugar.

Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

Electric Literature of 18422-53-2, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 18422-53-2, Name is 1,2:4,5-Di-O-Isopropylidene-Beta-D-Erythro-2,3-Hexodiulo-2,6-Pyranose, SMILES is O=C1[C@@]2(OC[C@]3([H])[C@@]1([H])OC(C)(O3)C)OC(C)(OC2)C, belongs to dioxoles compound. In a article, author is Makohliso, SA, introduce new discover of the category.

Application of Teflon-AF (R) thin films for bio-patterning of neural cell adhesion

Teflon AF(R), an amorphous copolymer of polytetrafluoroethylene (PTFE) with 2,2-bis(triflouromethyl)-4,5-difluoro-1, 3-dioxole, has been receiving widespread attention in the opto-electronics industries and elsewhere for its superior optical and dielectric properties. The objective of the present study was to investigate surface parameters that may be required for the application of thin films of Teflon AF(R) in the fields of biomaterials and bioelectronics. Using standard microelectronics procedures, micro-patterned thin films of Teflon-AF(R) were fabricated, and their surface properties monitored and optimized with the aid of highly surface sensitive spectrometric techniques. Finally, their capability to inhibit or bio-pattern cell adhesion was tested with various neural cell lines. (C) 1998 Elsevier Science S.A. All rights reserved.

Electric Literature of 18422-53-2, Consequently, the presence of a catalyst will permit a system to reach equilibrium more quickly, but it has no effect on the position of the equilibrium as reflected in the value of its equilibrium constant.I hope my blog about 18422-53-2 is helpful to your research.

Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

Synthetic Route of 29390-67-8, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 29390-67-8, Name is Mono-(6-amino-6-deoxy)-¦Â-cyclodextrin, SMILES is O[C@@H]1[C@H]([C@@H]2O[C@@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O[C@H](O[C@H]4CO)[C@@H](O)[C@H](O)[C@H]4O[C@H](O[C@H]5CO)[C@@H](O)[C@H](O)[C@H]5O[C@H](O[C@H]6CO)[C@@H](O)[C@H](O)[C@H]6O[C@H](O[C@H]7CO)[C@@H](O)[C@H](O)[C@H]7O[C@@H](O[C@@H]8CN)[C@H](O)[C@@H](O)[C@@H]8O[C@H]1O[C@@H]2CO)O)O)O, belongs to dioxoles compound. In a article, author is Polyakov, A., introduce new discover of the category.

Intermolecular interactions in target organophilic pervaporation through the films of amorphous Teflon AF2400

Organic-organic pervaporation was studied for high free volume material-amorphous Teflon AF2400 (copolymer of 2,2-bis-trifluoromethyle-4,5-difluoro dioxole and tetrafluoroethylene). Individual organic components-acetone (A), chloroform (Ch) and methanol (M) that are capable of forming azeotrope mixtures as well as binary mixtures A-Ch and M-Ch were tested as penetrants. The process was studied at different temperatures (10-50 degrees C) over a wide range of composition of mixtures (10-90%). Evidence of formation of associates between the components in the mixtures in the liquid phase and during mass transfer through the films were obtained. IR spectra and quantum-chemical calculations supported these conclusions. (c) 2005 Elsevier B.V. All rights reserved.

Synthetic Route of 29390-67-8, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 29390-67-8.

Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 29390-67-8, Name is Mono-(6-amino-6-deoxy)-¦Â-cyclodextrin, SMILES is O[C@@H]1[C@H]([C@@H]2O[C@@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O[C@H](O[C@H]4CO)[C@@H](O)[C@H](O)[C@H]4O[C@H](O[C@H]5CO)[C@@H](O)[C@H](O)[C@H]5O[C@H](O[C@H]6CO)[C@@H](O)[C@H](O)[C@H]6O[C@H](O[C@H]7CO)[C@@H](O)[C@H](O)[C@H]7O[C@@H](O[C@@H]8CN)[C@H](O)[C@@H](O)[C@@H]8O[C@H]1O[C@@H]2CO)O)O)O, in an article , author is Wu, Dao-Xin, once mentioned of 29390-67-8, SDS of cas: 29390-67-8.

Crystal structure of [3,4]dioxole-N ‘-(2-chloro-5-nitrobenzylidene)benzohydrazide, C15H10ClN3O5

C15H10ClN3O5, triclinic, P (1) over bar (no. 2), a = 4.890(2) angstrom, b = 10.271(2) angstrom, c = 14.804(3) angstrom, alpha = 96.08(3)degrees, beta = 90.56(3)degrees, gamma = 90.05(3)degrees, V = 739.3 angstrom(3), Z = 2, R-gt(F) = 0.060, wR(ref)(F-2) = 0.131, T = 298 K.

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Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem

In an article, author is Kennedy, GL, once mentioned the application of 526-95-4, Computed Properties of C6H12O7, Name is Gluconic Acid (contains Gluconolactone), molecular formula is C6H12O7, molecular weight is 196.1553, MDL number is MFCD00066366, category is dioxoles. Now introduce a scientific discovery about this category.

Inhalation toxicity of Dioxole and Dioxolane compounds in the rat

Four chemicals (Dioxole 418, Dioxolane 418, Dioxolane 416 and Dioxolane 456) which are used as stabilizers in highresolution image were tested or both their acute and repeated inhalation toxicity in the rat using nose-only exposures. Acute studies determined the lethal concentrations following a single 4-hour exposure, repeated exposure inhalation studies determined the potency and target tissue(s) following 6-hour/day exposures, 5 days/week for 2 weeks. Each of the chemicals was at least mildly toxic acutely with approximate lethal concentrations of > 1,500 ppm for Dioxole 418, 1,300 ppm for Dioxolane 418, 1,700 ppm for Dioxolane 416, and 4,300 ppm for Dioxolane 456. No specific unusual clinical signs of response were seen in the rats exposed acutely. Repeated exposures with Dioxole 418 and Dioxolane 418 resulted in no evidence of toxicity with NOAEL’s being 440 and 500 ppm respectively (the highest concentrations tested). Repeated exposures to 250 ppm Dioxolane 456 were not tolerated with mortalities observed after exposure. Severe bone marrow hypoplasia along with reductions in platelet and neutrophil counts were observed at this concentration with less severe hemopoietic changes seen also at 10 and 51 ppm. The no-effect level for Dioxolane 456 was determined to be 10 ppm in female rats and I ppm in males. The same hemopoietic effects were seen with Dioxolane 416 at exposures of 53 ppm or greater in males but not in females exposed to 53 ppm Dioxolane 416. Hepatocellular hypertrophy and depression of serum alkaline phosphatase activity were seen in male rats exposed to 500 but not 53 ppm Dioxolane 416. Testicular degeneration was also seen in rats exposed to 500 ppm Dioxolane 416. The NOAEL was 5 ppm for the chemical.

If you are interested in 526-95-4, you can contact me at any time and look forward to more communication. Computed Properties of C6H12O7.

Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem