Potassium Nitrate → HCID 86608391, compound

Participants

Reaction Conditions

Reaction Steps

6.9 g (40 mmol) of the above 5-Methylisatoic anhydride was suspended in 40 mL of conc. H2SO4 at −10° C. and cooled to −20° C. Next, 1.05 eq of potassium nitrate dissolved in 12 mL of sulfuric acid and cooled to 0° C., was then added dropwise. The reaction mixture was stirred 20° C. for 15 min then kept between −5° C. and 0° C. for 3 h. The mixture was poured into a beaker containing ice. The resulting solid was collected, washed with cold water and dried to give 3.9 g (44%) of 5-methyl-3-nitroisatoic anhydride as a solid.

Provenance & Evidence