Ethylene Glycol → 2-(2-Bromophenyl)-1,3-dioxolane

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Reaction Steps

2-Bromobenzaldehyde (11.4 g) was dissolved in toluene (150 mL), and thereto were added ethyleneglycol (4.58 g) and p-toluenesulfonic acid monohydrate (135 mg), and the mixture was refluxed for 6 hours with azeotropic distillation. The reaction solution was washed with an aqueous sodium hydrogen carbonate solution, and the solvent was evaporated under reduced pressure to give 2-(2-bromophenyl)-1,3-dioxolane (13.4 g, 95%).

Provenance & Evidence