Formamide → 6-fluoroquinazolin-4-ol

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-amino-5-fluorobenzoic acid (2.07 g) and formamide (4 ml) was heated at 160° C. for 2 hours, and for a further 2 hours at 180° C. The reaction mixture was allowed to cool and water was added. The reaction product was filtered off and washed with water and with diethyl ether to give 6-fluoro-3,4-dihydroquinazolin-4-one in 78% yield: m.p. 269-271° C.;

Provenance & Evidence