HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1462992Generated: October 26, 2026
Phthalic Anhydride → 2-Benzyl-1-(2-carboxybenzoyl)-4-phenyl-3-thiosemicarbazide
https://huagongshe.com/reaction/1462992
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phthalic Anhydride | HCID 6811 | — |
| Reactant | 2-Benzyl-4-phenylthiosemicarbazide | HCID 13310469 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 2-Benzyl-1-(2-carboxybenzoyl)-4-phenyl-3-thiosemicarbazide | HCID 13337512 | — |
Reaction Steps
Phthalic anhydride (3.7 g, 0.25 mole) and 2-benzyl-4-phenyl-3-thiosemicarbazide (6.43 g, 0.25 mole) were dissolved in 100 ml of dimethylformamide and heated at 90° C. for three hours. The solution was cooled then poured into ice water with stirring. The title product was filtered off as a solid material. Recrystallization gave a substance having a melting point of 140°-142°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04462821 |
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| Source dataset | uspto-grants-1984_07 |
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| ORD ID | ord-c0b295a6465d4bc494ec0e031f97ec93 |
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| Source note | uspto-grants-1984_07 |
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