Gundekari, Sreedhar published the artcileSelective preparation of renewable ketals from biomass-based carbonyl compounds with polyols using β-zeolite catalyst, Quality Control of 177-10-6, the publication is Molecular Catalysis (2022), 112269, database is CAplus.
The preparation of ketals from biomass-based carbonyl compounds and polyols was demonstrated. The emphasis is on levulinate-based ketals using Et levulinate (EL) with ethylene glycol (EG) or glycerol (Gly) as polyols. Among the catalysts screened, Na-β zeolite resulted in 99% conversion of EL with 100% selectivity for the corresponding ketal within 1 h, when used in conjunction with azeotropic distillation in cyclohexane medium. Using Gly as the polyol, a similar yield and selectivity was obtained, albeit after a longer reaction time (4 h). The authors explored the reaction scope by using a multitude of biomass-based ketones and polyols as reactants, which showed excellent selectivity for the ketals. Slight deactivation of the catalyst was observed after reaction, owing to the deposition of organic carbon on the catalyst, which was identified using anal. tools. The deactivated catalyst was regenerated on calcination. This strategy was successfully demonstrated for ketal preparation using crude glycerol with EL.
Molecular 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, Quality Control of 177-10-6.
Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem