A new application about C49H76O37S

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New discoveries in chemical research and development in 2021. Irreversible inhibitors are therefore the equivalent of poisons in heterogeneous catalysis. 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 Clarke, Zane, once mentioned of 67217-55-4, Application In Synthesis of Mono-(6-p-toluenesulfonyl)-β-cyclodextrin.

The crystal structures of 3-O-benzyl-1,2-O-isopropylidene-5-O-methanesulfonyl-6-O-triphenylmethyl- alpha-D-glucofuranose and its azide displacement product

The effect of different leaving groups on the substitution versus elimination outcomes with C-5 D-glucose derivatives was investigated. The stereochemical configurations of 3-O-benzyl-1,2-O-isopropylidene-5-O-methanesulfonyl-6-O-triphenylmethyl-alpha-D-glucofuranose, C36H38O8S (3) [systematic name: 1-[(3aR,5R,6S, 6aR)-6-benzyloxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)-2-(trityloxy)ethyl methanesulfonate], a stable intermediate, and 5-azido-3-O-benzyl-5-deoxy-1,2-O-isopropylidene-6-O-triphenylmethyl-beta-L-idofuranose, C35H35N3O5 (4) [systematic name: (3aR,5S,6S,6aR)-5-[1-azido-2-(trityloxy)ethyl]-6-benzyloxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxole], a substitution product, were examined and the inversion of configuration for the azido group on C-5 in 4 was confirmed. The absolute structures of the molecules in the crystals of both compounds were confirmed by resonant scattering. In the crystal of 3, neighbouring molecules are linked by C-H center dot center dot center dot O hydrogen bonds, forming chains along the b-axis direction. The chains are linked by C-H center dot center dot center dot pi interactions, forming layers parallel to the ab plane. In the crystal of 4, molecules are also linked by C-H center dot center dot center dot O hydrogen bonds, forming this time helices along the a-axis direction. The helices are linked by a number of C-H center dot center dot center dot pi interactions, forming a supramolecular framework.

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

More research is needed about C49H76O37S

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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 CORTEZ, E, introduce new discover of the category.

VIBRATIONAL-SPECTRA AND MOLECULAR MECHANICS AND AB-INITIO CALCULATIONS FOR 1,3-DIOXOLE – CONFIRMATION OF NONPLANARITY

Infrared and Raman spectra of the vapor, liquid, and solid phases of 1,3-dioxole have been recorded and analyzed. Much of the spectra can be interpreted assuming C-2v symmetry. However, several combination bands with the ring-puckering vibration along with the observation of an otherwise inactive mode confirm the non-planarity of this molecule. The observed frequencies are compared with predicted values from molecular mechanics (MM3) and ab initio (STO3-21G*) calculations. These calculated values provide useful estimates but about half of them differ from the observed values by more than 50 cm(-1). Several predicted values disagree by more than 200 cm(-1).

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

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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 Srinivas, Avula, once mentioned of 67217-55-4, Related Products of 67217-55-4.

Microwave-assisted Synthesis of Hybrid Heterocycles as Potential Anticancer Agents

In a one pot procedure, a series of novel hybrid heterocycles 6a-g and 7a-g were prepared by condensation of (3aS, 4S, 6S, 6aS)-6-((1-(4-chlorophenyl)-1H-1,2,3-triazol-4-yl) methoxy)-2,2-dimethyltetrahydrofuro[ 3,4-d][1,3] dioxole-4-carbaldehyde 5 with mercapto acids and primary amines in the presence of ZnCl2 under both microwave irradiation and conventional heating conditions. Compound 5 was prepared from di-acetone D-mannose via a click reaction, primary acetonide deprotection and oxidative cleavage. Characterization of new compounds has been done by IR, NMR, MS and elemental analysis. Anticancer activity of the compounds has also been evaluated.

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

Properties and Exciting Facts About 67217-55-4

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New discoveries in chemical research and development in 2021. Irreversible inhibitors are therefore the equivalent of poisons in heterogeneous catalysis. 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 Cimmino, Alessio, once mentioned of 67217-55-4, Safety of Mono-(6-p-toluenesulfonyl)-β-cyclodextrin.

Ryecyanatines A and B and ryecarbonitrilines A and B, substituted cyanatophenol, cyanatobenzo[1,3]dioxole, and benzo[1,3]dioxolecarbonitriles from rye (Secale cereale L.) root exudates: Novel metabolites with allelopathic activity on Orobanche seed germination and radicle growth

Orobanche and Phelipanche species (the broomrapes) are root parasitic plants, some of which represent serious weed problems causing heavy yield losses on important crops. Current control relies on the use of certain agronomic practices, resistant crop varieties, and herbicides, albeit success has been marginal. Agronomic practices such as the use of allelopathic species in intercropping or cover crops, or the use of direct seedling over residues of allelopathic species incorporate the principle of allelopathy exerted by molecules exuded from roots or released by crop residues to control broomrapes. In addition, the isolation of natural substances from root exudates of plants with potential to inhibit broomrape development opens the door to the design of new herbicides based on natural and benign sources. Ryecyanatines A and B and ryecarbonitrilines A and B, the first new substituted cyanatophenol, substituted cyanatobenzo[1,3]dioxole, and the latter two new substituted benzo[1,3]dioxolecarbonitriles were isolated from rye (Secale cereale L.) root exudates. They were characterized as 4-cyanato-2-methoxyphenol, 2-cyanato-benzo[1,3]dioxole, 2-methoxybenzo[1,3]dioxole-5-carbonitrile and benzo[1,3]dioxole-2-carbonitrile by spectroscopic (essentially NMR and HRESI MS spectra) methods. These compounds were investigated for allelopathic activity on Orobanche germination and development. Ryecarbonitriline A induced germination of Orobanche cumana seeds, and this germination can be considered as suicidal because O. cumana does not parasite rye roots and cannot survive without host resources beyond germination stage. In addition, ryecyanatine A promotes a rapid cessation of O. cumana, Orobanche crenata and Orobanche minor radicle growth with the promotion of a layer of papillae at the radicle tip in O. cumana and O. crenata hampering the contact of the parasite to the host. Ryecarbonitriline B also displayed the same activity although being less active than ryecyanatine A and mainly restricted to O. cumana. (C) 2014 Elsevier Ltd. All rights reserved.

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

Brief introduction of Mono-(6-p-toluenesulfonyl)-尾-cyclodextrin

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Chemical Research Letters, April 2021. Synthetic Route 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)-尾-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 STARKWEATHER, HW, introduce new discover of the category.

LOW-TEMPERATURE DIELECTRIC BEHAVIOR OF POLYMERS AND COPOLYMERS OF TETRAFLUOROETHYLENE

Dielectric measurements were made on a series of polymers containing tetrafluoroethylene at temperatures from 10 to 300 K and frequencies from 10 to 10(5) Hz. In all cases, the local-mode gamma-relaxation was observed. In FEP and PFA, which contain CF3 and n-C3F7O branches, respectively, there is also a lower temperature relaxation for which the activation entropy is close to zero. In Teflon AF, an amorphous copolymer containing a large number of dioxole rings, four relaxations were observed including the glass transition near 200-degrees-C.

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

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EFFECT OF X-IRRADIATION ON OPTICAL-PROPERTIES OF TEFLON-AF

Radiation effects in optical-grade amorphous fluoropolymer, Teflon-AF, is investigated by UV-visible absorption and electron spin resonance (ESR) measurements. When irradiated with low-energy (40 kVp) X-rays at room temperature in air, Teflon-AF is found to develop a broad, structureless UV-absorption band in the wavelength interval 200-350 nm. While the UV absorption increases as a function of X-ray dose, with relative rates of approx 2 x 10(-5) Gy-1 (1 x 10(-5) Gy-1) in Teflon-AF 1600 (Teflon-AF 2400), its optical transparency for a given dose of 67.5 kGy, however, remains unaffected. Additional measurements conducted using electron spin resonance (ESR) technique reveal that the observed UV absorption is caused by the X-ray induced peroxy radical (POO.). The results also suggest that the inclusion of dioxole monomer in the PTFE chain not only improves the optical clarity of Teflon-AF, as reported, but also increases its radiation tolerance. During a post-irradiation storage in air at RT for about 30 days the peroxy radical is observed to decay, with a concomitant decrease in UV absorption. A tentative model is proposed to explain the radiation damage and recovery mechanisms.

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

Archives for Chemistry Experiments of Mono-(6-p-toluenesulfonyl)-β-cyclodextrin

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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 Merkel, T. C., once mentioned of 67217-55-4, Reference of 67217-55-4.

Comparison of hydrogen sulfide transport properties in fluorinated and nonfluorinated polymers

Permeability coefficients of hydrogen sulfide in fluorinated polymers are anomalously low when compared to its permeability in nonfluorinated polymers. As a result, fluoropolymer membranes have unusual selectivities for gas pairs involving H2S. For example, while the mixture CO2/H2S selectivity is 0.66 for nonfluorinated, rubbery poly( dimethylsiloxane), this selectivity is 8.0 for a fluoroelastomer composed of tetrafluoroethylene, perfluoromethyl vinyl ether, and perfluoro-8-cyano-5-methyl-3,6-dioxa-1-octene (TFE/PMVE/ 8CNVE) and 27 for a glassy, cyclic perfluoroether (Cytop) under similar test conditions. The low H2S permeability in fluoropolymers is caused primarily by unexpectedly low H2S solubility in the fluorinated polymer matrices. For instance, H2S solubility in a Teflon AF copolymer of tetrafluoroethylene and 2,2-bis(trifluoromethyl)-4,5difluoro- 1,3-dioxole is approximately 5 times lower than the value predicted by a correlation of solubility with gas critical temperature. This low solubility is not related to penetrant size or condensability effects but rather is caused by unfavorable molecular interactions between H2S and fluoropolymers. As a result of this unusual solubility behavior, fluorinated glassy polymers are more resistant to H2S-induced plasticization than nonfluorinated glasses. These findings may prove useful in emerging membrane applications that involve H2S, such as natural gas treatment.

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

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FUNCTIONALIZATION AND METALLIZATION OF FLUOROPOLYMER SURFACES THROUGH REDUCTION

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

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Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-¦Â-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 Jasinski, Jerry P., once mentioned of 67217-55-4, Computed Properties of C49H76O37S.

1-(1,3-Benzodioxol-5-yl)ethanone

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 explortion of Mono-(6-p-toluenesulfonyl)-¦Â-cyclodextrin

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Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 67217-55-4, Name is Mono-(6-p-toluenesulfonyl)-¦Â-cyclodextrin, molecular formula is C49H76O37S. In an article, author is JAHAN, MS,once mentioned of 67217-55-4, Category: dioxoles.

EFFECT OF X-IRRADIATION ON OPTICAL-PROPERTIES OF TEFLON-AF

Radiation effects in optical-grade amorphous fluoropolymer, Teflon-AF, is investigated by UV-visible absorption and electron spin resonance (ESR) measurements. When irradiated with low-energy (40 kVp) X-rays at room temperature in air, Teflon-AF is found to develop a broad, structureless UV-absorption band in the wavelength interval 200-350 nm. While the UV absorption increases as a function of X-ray dose, with relative rates of approx 2 x 10(-5) Gy-1 (1 x 10(-5) Gy-1) in Teflon-AF 1600 (Teflon-AF 2400), its optical transparency for a given dose of 67.5 kGy, however, remains unaffected. Additional measurements conducted using electron spin resonance (ESR) technique reveal that the observed UV absorption is caused by the X-ray induced peroxy radical (POO.). The results also suggest that the inclusion of dioxole monomer in the PTFE chain not only improves the optical clarity of Teflon-AF, as reported, but also increases its radiation tolerance. During a post-irradiation storage in air at RT for about 30 days the peroxy radical is observed to decay, with a concomitant decrease in UV absorption. A tentative model is proposed to explain the radiation damage and recovery mechanisms.

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