Peng, Anshun published the artcileSynthesis of vanillin propylene glycol acetal using calcium methanesulfonate as catalyst, Application In Synthesis of 68527-74-2, the publication is Huaxue Shijie (2005), 46(12), 752-753, database is CAplus.
Vanillin propylene acetal was synthesized using vanillin and propylene glycol as starting materials and Ca methanesulfonate as catalyst. Factors influencing the yield were examined The optimum conditions were as follows: vanillin: 1,2-propanediol : catalyst : dehydration agent 0.15 mol : 0.225 mol : 1.00 g : 15 mL and refluxing for 3.0 h. The yield was above 87.5% under optimum conditions.
Huaxue Shijie published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C11H14O4, Application In Synthesis of 68527-74-2.
Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem