Dioxole related

Lu, Yueqing published the artcileSynthesis of novel carbon/silica composites based strong acid catalyst and its catalytic activities for acetalization, Related Products of dioxole, the publication is Bulletin of Materials Science (2012), 35(3), 419-424, database is CAplus.

Novel solid acid based on carbon/silica composites are synthesized through one-pot hydrothermal carbonization of hydroxyethylsulfonic acid, sucrose and tetra-Et orthosilicate (TEOS). The novel solid acid owned the acidity of 20 mmol/g, much higher than that of the traditional solid acids such as Nafion and Amberlyst-15 (08 mmol/g). The catalytic activities of the solid acid are investigated through acetalization. The results showed that the novel solid acid was very efficient for the reactions. The high acidity and catalytic activities made the novel carbon/silica composites based solid acid hold great potential for the green chem. processes.

Bulletin of Materials Science published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H14O2, Related Products of dioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Chen, Wen-long published the artcilePreparation and catalytic application of SO₄^2-/SnO₂-WO₃/KIT-6 complex solid acid, Application of 1,4-Dioxaspiro[4.5]decane, the publication is Guangzhou Huagong (2016), 44(7), 1-4, database is CAplus.

Complex solid acid of SO₄^2-/SnO₂-WO₃/KIT-6 was prepared through impregnation method using KIT-6 as template. The solid acid was used as catalyst for the Baeyer-Villiger oxidation of cyclic ketones and the condensation reaction between ketones/aldehyde and diols. It was found that the synthesized solid acid exhibited promising catalytic activity in the two kinds of reactions. The introducing of the WO₃ and KIT-6 increased not only the acidity but also the specific area of the solid acid, therefore, the catalytic activity of the solid acid was enhanced.

Guangzhou Huagong published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H14O2, Application of 1,4-Dioxaspiro[4.5]decane.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Tao, Duan-Jian published the artcileKinetics Study of the Ketalization Reaction of Cyclohexanone with Glycol Using Bronsted Acidic Ionic Liquids as Catalysts, Category: dioxole, the publication is Industrial & Engineering Chemistry Research (2012), 51(50), 16263-16269, database is CAplus.

It is remarkable that Bronsted acidic ionic liquids (BAILs) have several unique advantages in the acid-catalysis reaction, which avoids the tech. issues raised from mineral acids. The kinetics for the ketalization of cyclohexanone with glycol using BAILs as catalysts was therefore studied for the first time. The effects of various parameters such as kind of BAILs, temperature, catalyst loading, and molar ratio of the reactants on the conversion of cyclohexanone were examined in detail, and a pseudohomogeneous (PH) kinetic model was used successfully to correlate the exptl. data at from 313.15 to 343.15 K. The kinetic parameters such as reaction rate constant, activation energy, and chem. equilibrium constant then were proposed and utilized to interpret the catalytic activities of the BAILs catalysts. It was also validated from the comparison of catalytic performance among the BAILs, H₂SO₄, and solid resin that the BAILs were considered to be environmentally friendly and high efficient catalysts, and were suggested to replace mineral and solid acids in the synthesis of ketal.

Industrial & Engineering Chemistry Research published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H7NO4, Category: dioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Wu, Haijun published the artcilePromoting the conversion of poplar to bio-oil based on the synergistic effect of alkaline hydrogen peroxide, Safety of 2,2,4-Trimethyl-1,3-dioxolane, the publication is Renewable Energy (2022), 107-117, database is CAplus.

The synergistic catalysis effect of NaOH and H₂O₂ on the hydrothermal liquefaction (HTL) of poplar was investigated and compared to the NaOH or H₂O₂ catalyzed HTL at different temperatures and 30 min residence time. GC-MS, GPC, FT-IR, HPLC and TGA were used to comprehensively characterize the phys. and chem. properties of liquefied products (bio-oil, lignin and solid residue). The results showed that the highest total bio-oil yield (70.65%) was obtained at 280°C with NaOH (35 g/L)/H₂O₂ (30 g/L) as catalysts. The average mol. weight and polydispersity index (PDI) were found to be lower compared to that from other conditions. As the NaOH concentration was increased, the bio-oil yield was improved. The concentration of H₂O₂ for the optimal synergistic effect was observed to be 30 g/L. GC-MS anal. showed that the bio-oil obtained by NaOH (35 g/L)/H₂O₂ (30 g/L) was characterized with the lowest N content. The synergistic effect promoted the higher production selectivity of o-xylene and p-xylene in the bio-oil.

Renewable Energy published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C11H22N2O4, Safety of 2,2,4-Trimethyl-1,3-dioxolane.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Zhu, Haotian published the artcileSynthesis, crystal structure and catalytic activity of a Dawson-type tungstophosphate decorated by copper complexes, COA of Formula: C8H14O2, the publication is Yingyong Huaxue (2015), 32(4), 433-441, database is CAplus.

An inorganic-organic hybrid compound [Cu(H₂biim)₂(H₂O)][{Cu(H₂biim)₂}₂(P₂W₁₈O₆₂)]·11H₂O (H₂biim = 2,2′-biimidazole) (1) was hydrothermally constructed by the reaction of Cu(II)-H₂biim complexes and Dawson-type tungstophosphate, and characterized by single-crystal x-ray diffraction, IR spectroscopy (IR), X-ray powder diffraction (XRD), elemental anal. and electrochem. anal. Structural anal. showed that the polyanion [P₂W₁₈O₆₂]^6-, as a bidentate ligand, coordinates with two Cu²⁺ ions to form a bi-Cu(II)-supporting heteropolyanion [{Cu(H₂biim)₂}₂(P₂W₁₈O₆₂)]^2-, which was surrounded by an isolated [Cu(H₂biim)₂(H₂O)]²⁺ and eleven H₂O mols. The presence of N-H···O/OW hydrogen bonds between H₂biim mols. and polyoxoanion or water mols., in company with the synergistic effect of electrostatic interactions and π-π stack, gave a crystal material with 3-dimensional framework further. Compound 1 displayed good electrocatalytic activity toward the reduction of H₂O₂ and Na₂NO₂. Meanwhile it was also a good acid-catalyst for the synthesis of cyclohexanone ethylene ketal and could be recycled.

Yingyong Huaxue published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C17H14O5, COA of Formula: C8H14O2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Lu, Baolan published the artcileCatalytic synthesis of cyclohexanone ethylene ketal over phosphotungstic acid/silica gel, Formula: C8H14O2, the publication is Jingxi Shiyou Huagong Jinzhan (2011), 12(12), 50-52, database is CAplus.

Cyclohexanone ethylene ketal I was synthesized with cyclohexanone and glycol as the materials, and the catalytic activity of phosphotungstic acid/silica gel catalyst in ketol reaction was studied. According to the results, phosphotungstic acid/silica gel (SG) is a good catalyst for the synthesis of cyclohexanone ethylene ketal. The optimum synthesis conditions were identified: n (cyclohexanone):n (glycol) = 1:1.4, amount of water-carrying agent (i.e. cyclohexane): 8 mL, reaction time: 30 min. The yield of cyclohexanone ethylene ketal can reach 76.4% at such conditions.

Jingxi Shiyou Huagong Jinzhan published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H14O2, Formula: C8H14O2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Wang, Rui published the artcileCrystal structure, thermal decomposition mechanism and catalytic performance of hexaaquaaluminum methanesulfonate, Recommanded Product: 1,4-Dioxaspiro[4.5]decane, the publication is Journal of Coordination Chemistry (2017), 70(8), 1327-1338, database is CAplus.

Hexaaquaaluminum methanesulfonate crystals, [Al(H₂O)₆][CH₃SO₃]₃ (1) were synthesized by a hydrothermal reaction of Al(OH)₃ with methanesulfonic acid. Single-crystal diffraction determination revealed that Al³⁺ was coordinated by six water mols. in octahedral geometry, while the CH₃SO₃^– anion connected with Al³⁺ through coordinated water mols. by hydrogen bonds. The six-coordinate environment of Al was also determined by ²⁷Al MAS NMR measurement. TGA and FTIR spectroscopy showed that the decomposition intermediate at 265-365° was Al₂(μ-OH)(CH₃SO₃)₅ (2) and the final product was amorphous Al₂O₃ residue with ∼0.8% SO₃ at 520-800°. A pure phase of [Al(H₂O)₆][CH₃SO₃]₃ was confirmed by powder x-ray diffraction anal. Esterification of n-butyric acid with n-butanol and ketalization of cyclohexanone with glycol catalyzed by [Al(H₂O)₆][CH₃SO₃]₃ and Al₂(μ-OH)(CH₃SO₃)₅, resp., proceeded in 100% yield by continuously removing the produced water. In the case of tetrahydropyranylation of n-butanol at room temperature in dichloromethane, the catalytic activity of [Al(H₂O)₆][CH₃SO₃]₃ was much lower than that of Al₂(μ-OH)(CH₃SO₃)₅. Furthermore, both [Al(H₂O)₆][CH₃SO₃]₃ precursor and Al₂(μ-OH)(CH₃SO₃)₅ catalysts could be recycled.

Journal of Coordination Chemistry published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H6BF3O3, Recommanded Product: 1,4-Dioxaspiro[4.5]decane.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

He, Cheng-Yu published the artcileCopper-Catalyzed Asymmetric Borylative Cyclization of Cyclohexadienone-Containing 1,6-Dienes, HPLC of Formula: 503538-69-0, the publication is Advanced Synthesis & Catalysis (2020), 362(4), 765-770, database is CAplus.

Due to the low reactivity of 1,6-dienes and the challenge of selectively differentiating such two olefins, the development of metal-catalyzed asym. cyclization of 1,6-dienes remains largely underdeveloped. Herein, the authors describe the 1st Cu(I)-catalyzed asym. borylative cyclization of cyclohexadienone-tethered terminal alkenes (1,6-dienes) via a tandem process: the regioselective borocupration of the electron-rich terminal alkene and subsequent conjugate addition of stereospecific secondary alkyl-Cu(I) to the electron-deficient cyclohexadienone, affording enantioenriched bicyclic skeletons bearing three contiguous stereocenters in all cis-form. Meanwhile, this mild catalytic protocol is generally compatible with a wide range of functional groups, which allows further facile conversion of the cyclization products.

Advanced Synthesis & Catalysis published new progress about 503538-69-0. 503538-69-0 belongs to dioxole, auxiliary class (Atropisomeric Bisphosphine Ligands, name is (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, and the molecular formula is C38H24F4O4P2, HPLC of Formula: 503538-69-0.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Tan, Yu Jia published the artcileAmide-Amine Replacement in Indole-2-carboxamides Yields Potent Mycobactericidal Agents with Improved Water Solubility, Related Products of dioxole, the publication is ACS Medicinal Chemistry Letters (2021), 12(5), 704-712, database is CAplus and MEDLINE.

Indolecarboxamides are potent but poorly soluble mycobactericidal agents. Here, it was found that modifying the incipient scaffold by amide-amine substitution and replacing the indole ring with benzothiophene or benzoselenophene led to striking (10-20-fold) improvements in solubility Potent activity could be achieved without the carboxamide linker but not in the absence of the indole ring. The indolylmethylamine, N-cyclooctyl-6-trifluoromethylindol-2-ylmethylamine (MIC_90Mtb 0.13μM, MBC_99.9Mtb 0.63μM), exemplifies a promising member that is more soluble and equipotent to its carboxamide equivalent It is also an inhibitor of the mycolate transporter MmpL3, a property shared by the methylamines of benzothiophene and benzoselenophene.

ACS Medicinal Chemistry Letters published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C18H17NO8, Related Products of dioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Liu, Bin-bin published the artcileOdorless thioacetalization reaction of acetals, Computed Properties of 177-10-6, the publication is Liaoning Huagong (2014), 43(9), 1112-1113, database is CAplus.

Using 2-(1,3-dithian-2-ylidene)-3-oxobutanoic acid as odorless thiol equivalent, an efficient and odorless transthioacetalization of acetals has been developed in the presence of MeCOCl in MeOH at room temperature This transthioacetalization is characterized by mild reaction conditions, simple procedure and good yield. It is noteworthy that odor of thiols can not be perceived during the reaction.

Liaoning Huagong published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H14O2, Computed Properties of 177-10-6.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem