How to Convert Phthalic Acid to Phthalimide?
Phthalimide Can Be Prepared by Heating Alcoholic Ammonia with Phthalic Anhydride, Which Yields 95–97 per Cent. Alternatively, It Can Be Prepared by Taking...
Phthalimide can be prepared by heating alcoholic ammonia with phthalic anhydride, which yields 95–97 per cent. Alternatively, it can be prepared by taking ammonium carbonate or urea to treat the anhydride. It may also be caused by o-xylene ammoxidation.
How is Phthalimide converted to anthranilic acid?
Dissolve 7.5 g NaOH in 40 ml water and cool in ice bath to about 0°C temperature and then add 2.1 ml Br2 solution to it. To this solution add 6 g phthalamide and 20 ml 10% KOH solution, then heat the solution for 5-10 minutes till phthalamide dissolves.
How do you recrystallize Phthalimide?
Phthalimide may be recrystallized from water, but only about 4 g. of phthalimide will dissolve in a liter of boiling water. It may also be crystallized from alcohol, in which solvent it dissolves to the extent of five parts in a hundred at boiling temperature.
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