Diphenyl Ether → HCID 178487715, compound

Participants

Reaction Steps

4-Hydroxy-7-methoxy-3-quinolinecarboxylic acid (21.4 g, 0.1 mol) was added with diphenyl ether (150 ml) and decarboxylated at 250° C. for 2 hours. The reaction mixture was allowed to cool to room temperature and added with ethyl acetate (300 ml). The resulting precipitates were collected by filtration to obtain crude 4-hydroxy-7-methoxyquinoline (15.0 g). This was recrystallized from water (about 300 ml) to obtain 14.8 g (86%) of 4-hydroxy-7-methoxyquinoline.

Provenance & Evidence