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ChemicalBook CAS DataBase List 2-(1,3-DIOXOLAN-2-YL)FURAN
1708-41-4

2-(1,3-DIOXOLAN-2-YL)FURAN synthesis

4synthesis methods
-

Yield:1708-41-4 99%

Reaction Conditions:

with montmorillonite in toluene; for 2 h;Reflux;Dean-Stark;

Steps:

2 Example 2: Protecting carbonyl in furfural with ethylene glycol

A mixture of furfural (96.1 mg, 1.0 mmol), ethylene glycol (124.1 mg, 2.0 mmol) and montmorillonite K- 10 (300 mg) in toluene (20 mL) was stirred at reflux for 2 hours using a Dean-Stark apparatus to remove water. After cooling, the catalyst was removed by filtration and the solvent was evaporated under reduced pressure to give product (138.7 mg, 99%) as a light oil. 1H NMR matched commercially obtained 2-furfural ethylene glycol acetal.

References:

WO2019/182693,2019,A1 Location in patent:Paragraph 0060

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