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