Catalytic synthesis of butanone glycol ketal with strong acid cation-exchange resin was written by Liu, Chun-ling;Liu, He-qun;Gao, Wen-xiu. And the article was included in Huaxue Gongchengshi in 2007.Electric Literature of C6H12O2 This article mentions the following:
Butanone glycol ketal (i.e., 2-ethyl-2-methyl-1,3-dioxolane) was prepared by a reaction of butanone with glycol in the presence of a strongly acidic cation-exchange resin. The cation exchange resin’s catalytic activity to the ketal reaction was discussed. The factors influencing the product yield, such as molar ratio of ketone and alc., catalyst quantity and reaction time were systematically studied. The experiments showed that such a strong-acid cation-exchange resin is a good catalyst to synthesis of butanone glycol ketal. The yield of butanone glycol ketal reach 76.5% under the following optimum conditions: n(butanone) : (glycol) = 1:2, catalyst quantity is equal to 0.5% by mass of the total reaction materials, cyclohexane is used as water entrainment agent, the reaction time is 3h. In the experiment, the researchers used many compounds, for example, 2-Ethyl-2-methyl-1,3-dioxolane (cas: 126-39-6Electric Literature of C6H12O2).
2-Ethyl-2-methyl-1,3-dioxolane (cas: 126-39-6) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Although benzodioxole is not particularly important, many related compounds containing the methylenedioxyphenyl group are bioactive, and thus are found in pesticides and pharmaceuticals.Electric Literature of C6H12O2
Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem