Tag: M.W=1200-1300

Chemical Research Letters, April 2021. 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. Safety of Mono-(6-p-toluenesulfonyl)-β-cyclodextrin67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, SMILES is O=S(OC[C@@H]1[C@@]([C@@H]([C@H]([C@]([H])(O1)O[C@@]23[H])O)O)([H])O[C@]4([H])[C@H](O)[C@H]([C@@]([H])([C@H](O4)CO)O[C@]5([H])[C@H](O)[C@H]([C@@]([H])([C@H](O5)CO)O[C@]6([H])[C@H](O)[C@H]([C@@]([H])([C@H](O6)CO)O[C@@]([H])(O[C@@H]([C@]7(O[C@@]([H])(O[C@@H]([C@]8(O[C@]([H])([C@@H]([C@H]2O)O)O[C@@H]3CO)[H])CO)[C@@H]([C@H]8O)O)[H])CO)[C@@H]([C@H]7O)O)O)O)O)(C9=CC=C(C=C9)C)=O, belongs to dioxole compound. In a article, author is Beckford, Floyd A., introduce new discover of the category.

A series of copper complexes were synthesized from benzo[d][1,3]dioxole-5-carbaldehyde (piperonal) thiosemicarbazones (RHpTSC where R = H, CH3, C2H5 or C6H5 (Ph)). The complexes show interesting variations in geometry depending on the thiosemicarbazone; a dinuclear complex [Cu(HpTSC)Cl]2, a mononuclear complex [Cu(RHpTSC)2Cl2] (R = CH3 or C2H5) and another mononuclear complex [Cu(PhHpTSC)(PhpTSC)Cl] was generated. The complexes bind in a moderately strong fashion to DNA with binding constants on the order of 10(4)M(-1). They are also strong binders of human serum albumin with binding constants near 10(4) M-1. The complexes show good in vitro cytotoxic profiles against two human colon cancer cell lines (HT-116 and HT29) and two human breast cancer cell lines (MCF-7 and MDA-MB-231) with IC50 values in the low millimolar concentration range. (C) 2011 Elsevier B.V. All rights reserved.

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

New Advances in Chemical Research, April 2021. Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. HPLC of Formula: https://www.ambeed.com/products/67217-55-4.html67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, SMILES is O=S(OC[C@@H]1[C@@]([C@@H]([C@H]([C@]([H])(O1)O[C@@]23[H])O)O)([H])O[C@]4([H])[C@H](O)[C@H]([C@@]([H])([C@H](O4)CO)O[C@]5([H])[C@H](O)[C@H]([C@@]([H])([C@H](O5)CO)O[C@]6([H])[C@H](O)[C@H]([C@@]([H])([C@H](O6)CO)O[C@@]([H])(O[C@@H]([C@]7(O[C@@]([H])(O[C@@H]([C@]8(O[C@]([H])([C@@H]([C@H]2O)O)O[C@@H]3CO)[H])CO)[C@@H]([C@H]8O)O)[H])CO)[C@@H]([C@H]7O)O)O)O)O)(C9=CC=C(C=C9)C)=O, belongs to dioxole compound. In a article, author is Meuche-Albeny, J, introduce new discover of the category.

5-Chloromethyl-6-nitrobenzo[1,3]dioxole has been shown to react with 2-nitropropane anion to give C-alkylation by an S(RN)1 mechanism. The reaction was extended to various aliphatic, cyclic and heterocyclic nitronate anions, leading to a new series of nitrobenzo[1,3]dioxole derivatives.

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

Chemical Research Letters, April 2021. Electric Literature of 67217-55-4, 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. 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, SMILES is O=S(OC[C@@H]1[C@@]([C@@H]([C@H]([C@]([H])(O1)O[C@@]23[H])O)O)([H])O[C@]4([H])[C@H](O)[C@H]([C@@]([H])([C@H](O4)CO)O[C@]5([H])[C@H](O)[C@H]([C@@]([H])([C@H](O5)CO)O[C@]6([H])[C@H](O)[C@H]([C@@]([H])([C@H](O6)CO)O[C@@]([H])(O[C@@H]([C@]7(O[C@@]([H])(O[C@@H]([C@]8(O[C@]([H])([C@@H]([C@H]2O)O)O[C@@H]3CO)[H])CO)[C@@H]([C@H]8O)O)[H])CO)[C@@H]([C@H]7O)O)O)O)O)(C9=CC=C(C=C9)C)=O, belongs to dioxole compound. In a article, author is Kuwata, KT, introduce new discover of the category.

Methyl vinyl carbonyl oxide is an important intermediate in the reaction of isoprene and ozone and may be responsible for most of the (OH)-O-center dot formed in isoprene ozonolysis. We use CBS-QB3 calculations and RRKM/ master equation simulations to characterize all the pathways leading to the formation of this species, all the interconversions among its four possible conformers, and all of its irreversible isomerizations. Our calculations, like previous studies, predict (OH)-O-center dot yields consistent with experiment if thermalized syn-methyl carbonyl oxides form (OH)-O-center dot quantitatively. Natural bond order analysis reveals that the vinyl group weakens the C=O bond of the carbonyl oxide, making rotation about this bond accessible to this chemically activated intermediate. The vinyl group also allows one conformer of the carbonyl oxide to undergo electrocyclization to form a dioxole, a species not previously considered in the literature. Dioxole formation, which has a CBS-QB3 reaction barrier of 13.9 kcal/mol, is predicted to be favored over vinyl hydroperoxide formation, dioxirane formation, and collisional stabilization. Our calculations also predict that two dioxole derivatives, 1.2-epoxy-3-butanone and 3-oxobutanal, should be major products of isoprene ozonolysis.

Electric Literature of 67217-55-4, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 67217-55-4.

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

New Advances in Chemical Research in 2021. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction by binding to a specific portion of an enzyme and thus slowing or preventing a reaction from occurring. 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, SMILES is O=S(OC[C@@H]1[C@@]([C@@H]([C@H]([C@]([H])(O1)O[C@@]23[H])O)O)([H])O[C@]4([H])[C@H](O)[C@H]([C@@]([H])([C@H](O4)CO)O[C@]5([H])[C@H](O)[C@H]([C@@]([H])([C@H](O5)CO)O[C@]6([H])[C@H](O)[C@H]([C@@]([H])([C@H](O6)CO)O[C@@]([H])(O[C@@H]([C@]7(O[C@@]([H])(O[C@@H]([C@]8(O[C@]([H])([C@@H]([C@H]2O)O)O[C@@H]3CO)[H])CO)[C@@H]([C@H]8O)O)[H])CO)[C@@H]([C@H]7O)O)O)O)O)(C9=CC=C(C=C9)C)=O, in an article , author is Luginina, Jevgenija, once mentioned of 67217-55-4, HPLC of Formula: https://www.ambeed.com/products/67217-55-4.html.

The title compound, C13H21NO7 {systematic name: (3aR, 5S, 6R, 6aR)-5-[(R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-6-(nitromethyl)tetrahydrofuro[2,3-d][1,3]dioxole}, consists of a substituted 2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxolane skeleton. The furanose ring A adopts a T-o(4) conformation. The fused dioxolane ring B and the substituent dioxolane ring C also have twisted conformations. There are no strong hydrogen bonds in the crystal structure: only weak C-H center dot center dot center dot O contacts are present, which link the molecules to form a three-dimensional 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 67217-55-4. HPLC of Formula: https://www.ambeed.com/products/67217-55-4.html.

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

New Advances in Chemical Research, April 2021. Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. Recommanded Product: Mono-(6-p-toluenesulfonyl)-β-cyclodextrin67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, SMILES is O=S(OC[C@@H]1[C@@]([C@@H]([C@H]([C@]([H])(O1)O[C@@]23[H])O)O)([H])O[C@]4([H])[C@H](O)[C@H]([C@@]([H])([C@H](O4)CO)O[C@]5([H])[C@H](O)[C@H]([C@@]([H])([C@H](O5)CO)O[C@]6([H])[C@H](O)[C@H]([C@@]([H])([C@H](O6)CO)O[C@@]([H])(O[C@@H]([C@]7(O[C@@]([H])(O[C@@H]([C@]8(O[C@]([H])([C@@H]([C@H]2O)O)O[C@@H]3CO)[H])CO)[C@@H]([C@H]8O)O)[H])CO)[C@@H]([C@H]7O)O)O)O)O)(C9=CC=C(C=C9)C)=O, belongs to dioxole compound. In a article, author is Jasinski, Jerry P., introduce new discover of the category.

In the title compound, C(9)H(8)O(3), the dihedral angle between the mean planes of the benzene and dioxole rings is 1.4 (8)degrees, with the dioxole group in a slightly distorted envelope configuration with the flap C atom displaced by 0.0645 angstrom from the plane through the other four atoms. In the crystal, weak intermolecular C-H center dot center dot center dot O hydrogen-bond interactions link the molecules into chains propagating in [011]. The crystal packing exhibits weak pi-pi interactions as evidenced by the relatively short distances [3.801 (9) angstrom] between the centroids of adjacent benzene rings.

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

New Advances in Chemical Research in 2021. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction by binding to a specific portion of an enzyme and thus slowing or preventing a reaction from occurring. 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, SMILES is O=S(OC[C@@H]1[C@@]([C@@H]([C@H]([C@]([H])(O1)O[C@@]23[H])O)O)([H])O[C@]4([H])[C@H](O)[C@H]([C@@]([H])([C@H](O4)CO)O[C@]5([H])[C@H](O)[C@H]([C@@]([H])([C@H](O5)CO)O[C@]6([H])[C@H](O)[C@H]([C@@]([H])([C@H](O6)CO)O[C@@]([H])(O[C@@H]([C@]7(O[C@@]([H])(O[C@@H]([C@]8(O[C@]([H])([C@@H]([C@H]2O)O)O[C@@H]3CO)[H])CO)[C@@H]([C@H]8O)O)[H])CO)[C@@H]([C@H]7O)O)O)O)O)(C9=CC=C(C=C9)C)=O, in an article , author is Itoh, S, once mentioned of 67217-55-4, Synthetic Route of 67217-55-4.

An addition-cyclization reaction of nitroalkane anions with tricyclic o-quinones occurs in acetonitrile to yield the corresponding 1,3-dioxole derivatives. The heat of formation of the charge-transfer complex formed between the 2-nitropropane anion and 1,7-phenanthroline-5,6-dione is of greater magnitude than the observed activation enthalpy of the addition reaction. Since such a relationship could only arise when the charge-transfer complex lies along the reaction pathway, the charge-transfer complex acts as a real intermediate rather than a bystander in the addition reaction of the 2-nitropropane anion with the o-quinone derivative. A comparison of the observed rate constants with those predicted for the electron transfer from nitroalkane anions to o-quinones indicates that the addition reaction proceeds via electron transfer in the charge-transfer complex formed between nitroalkane anions and the o-quinones, followed by C-O adduct formation and subsequent cyclization to afford the 1,3-dioxole derivatives.

Synthetic Route of 67217-55-4, 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 67217-55-4.

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

New discoveries in chemical research and development in 2021. 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. 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, molecular formula is C49H76O37S. In an article, author is Thurston, DE,once mentioned of 67217-55-4, Quality Control of Mono-(6-p-toluenesulfonyl)-β-cyclodextrin.

Several A-ring-modified analogues of the DNA-binding antitumor agent DC-81 (5) have been synthesized in order to study structure-reactivity/cytotoxicity relationships. For two molecules (23 and 30) the modifications required the addition of a fourth ring to give the novel dioxolo-[4,5-h]- and dioxano[5,6-h]pyrrolo[2,1-c][1,4]benzodiazepin-11-one (PBD) ring systems, respectively. Another three analogues (34, 38, and 48) have the native benzenoid A-ring replaced with pyridine, diazine, or pyrimidine rings to give the novel pyrrolo[2,1-c][1,4]pyridodiazepine, pyrrolo[2,1-c][1,4]diazinodiazepine, and pyrrolo[2,1-c][1,4]pyrimidinodiazepine systems, respectively. The other new analogues (16a,b) have extended chains at the C8-position of the DC-81 structure. During the synthesis of these compounds, a novel tin-mediated regiospecific cleavage reaction of the dioxole intermediate 18 was discovered, leading to the previously unknown iso-DC-81 (20). In addition, an unusual simultaneous nitration-oxidation reaction of 4-(3-hydroxypropoxy)-3-methoxybenzoic acid (8) was found to produce 3-(4-carboxy-2-methoxy-5-nitrophenoxy)propanoic acid (9), a key intermediate, in high yield. In general, the results of cytotoxicity and DNA-binding studies indicated that none of the changes made to the A-ring of the PBD system significantly improved either binding affinity or cytotoxicity in comparison to DC-81. This result suggests that the superior potency of natural products such as anthramycin (1), tomaymycin (2), and sibiromycin (3) is due entirely to differences in C-ring structure, and in particular exo or endo unsaturation at the C2-position and C2-substituents containing unsaturation. This study also provided information regarding the influence of A-ring substitution pattern on the relative stability of the interconvertible N10-C11 carbinolamine, carbinolamine methyl ether, and imine forms of PBDs.

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 67217-55-4, in my other articles. Quality Control of Mono-(6-p-toluenesulfonyl)-β-cyclodextrin.

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

Chemical Research Letters, April 2021. Related Products of 67217-55-4, 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. 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, SMILES is O=S(OC[C@@H]1[C@@]([C@@H]([C@H]([C@]([H])(O1)O[C@@]23[H])O)O)([H])O[C@]4([H])[C@H](O)[C@H]([C@@]([H])([C@H](O4)CO)O[C@]5([H])[C@H](O)[C@H]([C@@]([H])([C@H](O5)CO)O[C@]6([H])[C@H](O)[C@H]([C@@]([H])([C@H](O6)CO)O[C@@]([H])(O[C@@H]([C@]7(O[C@@]([H])(O[C@@H]([C@]8(O[C@]([H])([C@@H]([C@H]2O)O)O[C@@H]3CO)[H])CO)[C@@H]([C@H]8O)O)[H])CO)[C@@H]([C@H]7O)O)O)O)O)(C9=CC=C(C=C9)C)=O, belongs to dioxole compound. In a article, author is Umesha, Basavaiah, introduce new discover of the category.

Benzo[d][1,3]dioxole gathered pyrazole derivatives (4a-i) were synthesized by the reaction of chalcones with phenyl hydrazine in presence of absolute alcohol as a solvent. Chalcones were prepared by the Claisen-Schmidt reaction between 1-(benzo[d][1,3]dioxol-5-yl)ethanone (2) and substituted aromatic aldehydes. The synthesized compounds were characterized by spectral and elemental analysis data. Furthermore, Benzo[d][1,3]dioxole gathered pyrazole derivatives (4a-i) were evaluated for their in vitro antimicrobial activity. Among the newly synthesized compounds 4a, 4c, 4 g and 4 h showed the excellent antifungal activity and as well as 4a and 4d showed the excellent antibacterial activity when compared to other compounds.

Related Products of 67217-55-4, 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 67217-55-4 is helpful to your research.

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

New discoveries in chemical research and development in 2021. 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. 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, molecular formula is C49H76O37S. In an article, author is HUNG, MH,once mentioned of 67217-55-4, Formula: https://www.ambeed.com/products/67217-55-4.html.

Fluoropolymer films, such as Teflon(TM)-TFE [poly(tetrafluoroethylene)], Teflon(TM)-FEP [copolymer of tetrafluoroethylene and hexafluoropropylene], Teflon(TM)-PFA [copolymer of tetrafluoroethylene and perfluoro(propyl vinyl ether)], and PCTFE [poly(chlorotrifluoroethylene)], are reduced by the mild reducing agent benzoin dianion/DMSO, while Teflon(TM)-AF [copolymer of tetrafluoroethylene and perfluoro-2,2-dimethyl-1,3-dioxole] is unreactive. The reduction makes the films adherable toward epoxy resins, the adhesive strength decreasing in the order PCTFE > PFA greater than or equal to FEP > PTFE. Surprisingly, Teflon(TM)-AF films are totally inert except when the TFE content is high, and in these cases, the adhesive strength of Teflon(TM)-AF is close to that of PTFE. The surfaces of PTFE, FEP and PFA films are further modified by first treating these films with the benzoin dianion/DMSO reagent and then with an excess of sodium salts of mercaptans. Reactive PTFE films that are light colored with a metallic luster are formed rather than the dark, metallic color typical of PTFE surface reduction without mercaptan treatment. These films have poor adhesion toward epoxy resins but good adhesion toward gold applied by sputtering. FEP and PFA films behaved similarly. These results are attributed to the incorporation of sulfur onto the reduced surface. Unreduced fluoropolymer films reacted with only sodium mercaptan fail to show C-S bond incorporation. This newly developed method can be used to selectively metallize the fluoropolymer film surface with gold layers and affords very high conductivity of the metallized regions. (C) 1995 John Wiley and Sons, Inc.

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

New Advances in Chemical Research in 2021. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction by binding to a specific portion of an enzyme and thus slowing or preventing a reaction from occurring. 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-β-cyclodextrin, SMILES is O=S(OC[C@@H]1[C@@]([C@@H]([C@H]([C@]([H])(O1)O[C@@]23[H])O)O)([H])O[C@]4([H])[C@H](O)[C@H]([C@@]([H])([C@H](O4)CO)O[C@]5([H])[C@H](O)[C@H]([C@@]([H])([C@H](O5)CO)O[C@]6([H])[C@H](O)[C@H]([C@@]([H])([C@H](O6)CO)O[C@@]([H])(O[C@@H]([C@]7(O[C@@]([H])(O[C@@H]([C@]8(O[C@]([H])([C@@H]([C@H]2O)O)O[C@@H]3CO)[H])CO)[C@@H]([C@H]8O)O)[H])CO)[C@@H]([C@H]7O)O)O)O)O)(C9=CC=C(C=C9)C)=O, in an article , author is Wu, Dao-Xin, once mentioned of 67217-55-4, Synthetic Route of 67217-55-4.

Crystal structure of [3,4]dioxole-N ‘-(3,5-dichloro-2-hydroxybenzylidene)benzohydrazide – methanol (1:1), C15H10Cl2N2O4 center dot CH3OH

C16H14Cl2N2O5, monoclinic, P12(1)/cl (no. 14), a = 8.041(1) angstrom, b = 13.744(2) angstrom, c = 15.530(2) angstrom, beta = 100.201(2)degrees, V = 1689.2 angstrom(3), Z = 4, R-gt(F) = 0.044, wR(ref)(F-2) = 0.113, T = 298 K.

Synthetic Route of 67217-55-4, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 67217-55-4.

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