2,2-Dimethyl-1,3-dioxane-4,6-dione → HCID 23509302, compound

Participants

Reaction Steps

Proline (0.459 g, 3.95 mmol) was added to a mixture of 3-cyanobenzaldehyde (2.59 g, 19.7 mmol) and Meldrum's acid (2.84 g, 19.7 mmol) in ethanol (200 mL). The mixture was stirred at room temperature for 45 minutes and then diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate (5 g, 20 mmol) was added. The mixture was stirred for an additional hour at room temperature before being concentrated to dryness. The residue was triturated with isopropanol and filtered to provide the title compound as a white solid.

Provenance & Evidence