HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 429525Generated: October 25, 2026
Phthalic Anhydride → N-Hydroxyphthalimide
https://huagongshe.com/reaction/429525
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phthalic Anhydride | HCID 6811 | — |
| Reactant | Hydroxylammonium phosphate (3:1) | HCID 10176537 | — |
| Solvent | Water | HCID 962 | — |
| Product | N-Hydroxyphthalimide | HCID 10665 | — |
Reaction Steps
1.48 g (10.0 mmol) of phthalic anhydride and 0.723 g (3.67 mmol) of hydroxylammonium phosphate were pulverized, mixed and, following the addition of 2 ml of water, heated at a bath temperature of 130° C. for about 1½ hours. The cooled lemon-yellow reaction mixture was diluted with water, and the solid was filtered off with suction, washed with water and dried at 50° C. The yield was 1.39 g (86%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06316639B1 |
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| Source dataset | uspto-grants-2001_11 |
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| ORD ID | ord-ffb4abcd931e499bb3815317beb34444 |
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| Source note | uspto-grants-2001_11 |
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