Category: 177-10-6

Li, Zi-Liang published the artcileThree molybdophosphates based on Strandberg-type anions and Zn(II)-H₂biim/H₂O subunits: syntheses, structures and catalytic properties, Recommanded Product: 1,4-Dioxaspiro[4.5]decane, the publication is Dalton Transactions (2014), 43(15), 5840-5846, database is CAplus and MEDLINE.

Three new inorganic-organic hybrid compounds based on Strandberg-type anions and Zn(II)-H₂biim/H₂O subunits, namely {H₄(H₂biim)₃}[Zn(H₂biim)(H₃biim)(H₂O)(HP₂Mo₅O₂₃)]₂·3H₂O (1), {H₉(H₂biim)₇}[(μ-biim){(Zn(H₂O)₂)_0.5(HP₂Mo₅O₂₃)}₂]·7H₂O (2) and {H₇(H₂biim)₇}[Zn(H₂biim)(H₂O)₂(HP₂Mo₅O₂₃)][H₂P₂Mo₅O₂₃]·8H₂O (3) (H₂biim = 2,2′-biimidazole), have been synthesized in aqueous solutions and characterized. They were also used as efficient and reusable catalysts for the protection of carbonyl compounds Their fascinating structural features are that mono Zn(II)-supporting biphosphopentamolybdate ({P₂Mo₅}) clusters exist in their crystal structures, and the nitrogen donor ligand H₂biim exhibits three different coordination modes in these three compounds, resp.: for 1, two 2,2′-biimidazole mols., as mono- and bidentate ligands coordinate to the same Zn(II) ion; for 2, one bi-neg. tetradentate ligand μ-biim bridges two Zn(II) ions, while for 3, one neutral bidentate H₂biim ligand links one Zn(II) ion. Most importantly, compounds 1–3 represent the first example where Strandberg-type POMs are used as acid-catalysts in an organic reaction.

Dalton Transactions 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, Recommanded Product: 1,4-Dioxaspiro[4.5]decane.

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

Zhu, Zai-ming published the artcileSynthesis of cyclohexanone ethylene ketal catalyzed by Keggin-type Ni/Cu/2,2′-H₂ biim-tungstosilicates, Application of 1,4-Dioxaspiro[4.5]decane, the publication is Yingyong Huagong (2015), 44(5), 882-886, 889, database is CAplus.

A series of Keggin-type Ni/Cu/H₂biim-tungstosilicates (H₂ biim = 2,2′-biimidazole) were synthesized with the parent tungstosilicic acid as a reactant and H₂ biim, Ni²⁺/Cu²⁺ and their complexes as raw materials by a direct precipitation method. They were characterized by single crystal XRD, IR and elemental anal. The acid-catalyzed synthesis of cyclohexanone ethylene ketal by the reaction of cyclohexanone with ethylene glycol was selected as a model reaction. The catalytic activities of these tungstosilicates were investigated. The results show that the introduction of large cation reduced the POM’s solubility, and the catalysts can be recycled and reused, so that their utilization can be improved. Moreover, the catalytic activities of these heterogeneous catalysts were almost unchanged after three cycles.

Yingyong 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 C15H23BO2, Application of 1,4-Dioxaspiro[4.5]decane.

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

Zhang, Du published the artcileReuse of waste catalytic-cracking catalyst: fine performance in acetalization, Synthetic Route of 177-10-6, the publication is Journal of Material Cycles and Waste Management (2020), 22(1), 22-29, database is CAplus.

Equilibrium fluid-catalytic-cracking catalyst (E-cat), a waste catalyst from fluid-catalytic cracking in petroleum refining, was used to catalyze acetalization of aldehydes (ketones) with diols. Although the activity of E-cat in catalytic cracking has decreased, it still presented fine catalytic performance in the acetalization. The ketal was stoichiometrically formed in the reaction of cyclohexanone with ethanediol, conversion of the ketone reached to 99.7% and selectivity of the ketal maintained 100% in the optimum conditions. It was revealed that E-cat can be provided with the wide adaptability in acetalization from the syntheses of different kinds of acetals or ketals. Moreover, E-cat appeared a superreusability through filtration from the reaction flask. It was an attracted example for decrement from the bulk waste catalyst in petroleum refining.

Journal of Material Cycles and Waste Management 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 C38H74Cl2N2O4, Synthetic Route of 177-10-6.

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

Cheng, Shengxian published the artcileCrystallinity after decarboxylation of a metal-carboxylate framework: indestructible porosity for catalysis, Safety of 1,4-Dioxaspiro[4.5]decane, the publication is Dalton Transactions (2020), 49(34), 11902-11910, database is CAplus and MEDLINE.

We report a curious case study of a Zr(IV)-carboxylate framework, which retains significant crystalline order after cascade thermocyclization of its linker components, and – more notably – after the crucial carboxylate links were severed by heat. Vigorous heat treatment (e.g., 450°C and above) benzannulates the multiple alkyne groups on the linker to generate linked nanographene blocks and to afford real stability. The resultant Zr oxide/nanographene hybrid solid is stable in saturated NaOH and concentrated H₃PO₄, allowing a convenient anchoring of H₃PO₄ into its porous matrix to enable size-selective heterogeneous acid catalysis. The Zr oxide components can also be removed by strong hydrofluoric acid to further enhance the surface area (up to 650 m² g^-1), without collapsing the nanographene scaffold. The crystallinity order and the extensive thermal transformations were characterized by X-ray diffraction, scanning transmission electron microscopy (STEM), IR, solid state NMR and other instrumental methods.

Dalton Transactions 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, Safety of 1,4-Dioxaspiro[4.5]decane.

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

Zhong, Shaofeng published the artcilePhosphorus promoted SO₄^2-/TiO₂ solid acid catalyst for acetalization reaction, Synthetic Route of 177-10-6, the publication is Journal of the Chilean Chemical Society (2015), 60(3), 3005-3008, database is CAplus.

A novel phosphorus modified SO₄^2-/TiO₂ catalyst was synthesized by a facile coprecipitation method, followed by calcination. The catalytic performance of this novel solid acid was evaluated by acetalization. The results showed that the phosphorus was very efficient to enhance the catalytic activity of SO₄^2-/TiO₂. The solid acid owned high activity for the acetalization with the yields over 90%. Moreover, the solid acid could be reused for six times without loss of initial catalytic activities.

Journal of the Chilean Chemical Society 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 C3H3Br2ClO, Synthetic Route of 177-10-6.

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

Barbosa, Sandro L. published the artcileKetalization of ketones to 1,3-dioxolanes and concurring self-aldolization catalyzed by an amorphous, hydrophilic SiO₂-SO₃H catalyst under microwave irradiation, HPLC of Formula: 177-10-6, the publication is Journal of the Brazilian Chemical Society (2018), 29(8), 1663-1671, database is CAplus.

The amorphous, mesoporous SiO₂-SO₃H catalyst with a surface area of 115 m² g^-1 and 1.32 mmol H⁺ per g was very efficient for the protonation of ketones on a 10% (m/m) basis, and the catalyst-bound intermediates could be trapped by polyalcs. to produce ketals in high yields or suffer aldol condensations within minutes under low-power microwave irradiation The same catalyst could easily reverse the ketalization reaction.

Journal of the Brazilian Chemical Society 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, HPLC of Formula: 177-10-6.

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

Kanai, Shunsuke published the artcileA bifunctional cerium phosphate catalyst for chemoselective acetalization, Recommanded Product: 1,4-Dioxaspiro[4.5]decane, the publication is Chemical Science (2017), 8(4), 3146-3153, database is CAplus and MEDLINE.

In this study, a CePO₄ catalyst was synthesized using a hydrothermal method and found to exhibit high catalytic performance for the chemoselective acetalization of 5-hydroxymethylfurfural with alcs., in sharp contrast to other homogeneous and heterogeneous acid and/or base catalysts. In the presence of CePO₄, various combinations of carbonyl compounds and alcs. are efficiently converted into the corresponding acetal derivatives in good to excellent yields. Mechanistic studies show that CePO₄ most likely acts as a bifunctional catalyst through the interaction of uniform Lewis acid and weak base sites with 5-hydroxymethylfurfural and alc. mols., resp., which results in high catalytic performance.

Chemical 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, Recommanded Product: 1,4-Dioxaspiro[4.5]decane.

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

Ikeda, Keiichi published the artcileRh(I)-Catalyzed cyclocarbonylation of enynes with glyceraldehyde: an available carbonyl source derived from sugar alcohols, Name: 1,4-Dioxaspiro[4.5]decane, the publication is Synlett (2012), 23(3), 393-396, database is CAplus.

Catalytic cyclocarbonylation reactions using a glyceraldehyde derivative as a carbonyl source are described. The rhodium(I)-catalyzed reaction of enynes, e.g., H₂C:CHCH₂OCH₂CCR ( R = Ph, n-Bu, CMe₃), with glyceraldehyde acetonide I gave bicyclic cyclopentenones, e.g., II, as the products. This presents an interesting use of a sugar alc. derived carbon resource as well as a convenient procedure for the cyclocarbonylation of enynes.

Synlett 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, Name: 1,4-Dioxaspiro[4.5]decane.

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

Liu, Xiaoxia published the artcileA simple approach to the preparation of H₆P₂W₁₈O₆₂/Cu₃(BTC)₂ (BTC = 1,3,5-benzenetricarboxylate) and its catalytic performance in the synthesis of acetals/ketals, Category: dioxole, the publication is Reaction Kinetics, Mechanisms and Catalysis (2015), 116(1), 159-171, database is CAplus.

H₆P₂W₁₈O₆₂/Cu₃(BTC)₂ (BTC = 1,3,5-benzenetricarboxylate) as a new catalyst was prepared by the impregnation method and used to synthesize cyclohexanone ethylene ketal as a probe reaction, which has shown its favorable catalytic activity. FT-IR, XRD, SEM, N₂ adsorption-desorption isotherms and TG/DTA were used to characterize its composition, structure, morphol., stability and toleration for thermal in order to further prepare the catalyst with effective performance. Moreover, we have also explored the optimized conditions of carrying out the probe reaction by orthogonal experiments The optimized conditions were as follows: fixing cyclohexanone consumption was 0.02 mol, n(cyclohexanone):n(ethylene glycol) = 1:1.3, the mass ratio of the catalyst to total reactant was 0.2 %, cyclohexane dosage was 4 mL, and the reaction time was 75 min. The yield of the acetals and ketones could reach 54.9 ∼ 83.5 % under the optimum conditions. In addition, H₆P₂W₁₈O₆₂/Cu₃(BTC)₂ exhibited good reusability and the approaches above may enable rational design of advanced and environmental-friendly MOF-based catalysts.

Reaction Kinetics, Mechanisms and Catalysis 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, Category: dioxole.

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

Xiang, Shiyin published the artcileSynthesis of cyclohexanone ethylene ketal catalyzed by H₆P₂W₉Mo₉O₆₂/SiO₂, Recommanded Product: 1,4-Dioxaspiro[4.5]decane, the publication is Jingxi Shiyou Huagong Jinzhan (2017), 18(6), 45-48, database is CAplus.

H₆P₂W₉Mo₉O₆₂/SiO₂ was synthesized in a sol-gel process, and the thermal stability, structure and morphol. of H₆P₂W₉Mo₉O₆₂/SiO₂ were analyzed with X-ray diffractometer (XRD), FTIR Raman spectrometer, differential thermal analyzer (TG) and scanning electron microscope (SEM). Cyclohexanone ethylene ketal was synthesized with cyclohexanone and ethylene glycol as the reaction materials and H₆P₂W₉Mo₉O₆₂/SiO₂ as the catalyst, and the effects of the molar ratio of alc. ketone, the catalyst amount, the reaction time, and the cyclohexane amount on the synthesis of ketal were studied. According to the results, the yield of cyclohexanone ethylene ketal can reach 80.4% at the following conditions, i.e. n (cyclohexanone) : n (ethylene glycol)=1:1.3, the catalyst amount accounts for 0.8% of total reactants, and the reaction time is 45 min.

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 C13H18N2, Recommanded Product: 1,4-Dioxaspiro[4.5]decane.

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