Acetic Anhydride → HCID 178475361, compound

Participants

Reaction Steps

A mixture of quinazoline-4,6-diol (20 g, 123 mmol) and acetic anhydride (186 mL, 1.97 mol) was heated to 100° C. in pyridine (30 mL) for 2 hours. After cooling to room temperature, ice (200 g) was slowly added to the reaction mixture. The precipitate was filtered, washed with cold water, and dried under high vacuum to provide the product (16.25 g, 65%) as pale yellow solid.

Provenance & Evidence