反应详情

The free acid is prepared by neutralizing an aqueous solution of the sodium 2-(2-pyridyl)4-carboxyquinoline carboxylate 3 with 10% HCl. The acid is somewhat soluble in acidic solution, and care should be taken not to overacidify; a pH of 7 is optimum. The solid is filtered, washed with 40 mL of acetone and allowed to air dry.

1. customThe free acid is prepared
2. filtrationThe solid is filtered
3. washwashed with 40 mL of acetone
4. customto air dry