Acetic Anhydride → HCID 13341922, compound

Participants

Reaction Steps

3,4-Dihydro-6-hydroxy-2-trichloromethyl-2H-benzo[e]-[1,3]-oxazin-4-one (prepared as described in Example 3--5.0 g.) and acetic anhydride (250 ml.) were stirred for 40 hours at room temperature, the mixture was filtered, and the solid product was washed with acetic anhydride, then diethyl ether, to give 6-acetoxy-3,4-dihydro-2-trichloromethyl-2H-benzo[e]-[1,3]-oxazin-4-one, m.p. 201°-203° C.

Provenance & Evidence