Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sulfanilic acid | HCID 8479 | — |
| Reactant | HCID 13537200 | HCID 13537200 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 13537212 | HCID 13537212 | 93% |
Reaction Steps
Sulphanilic acid (1.95 g) in water (75 ml) and ethanol (10 ml) at 70° C. was treated with 4,7-dichlorocinnoline (2.2 g) and ethanol (10 ml) was added. The resultant green suspension was stirred vigorously overnight at 70° C. The mixture was cooled, and the solid was filtered, washed with water and dried at room temperature to give 3.45 g of the title compound as the monohydrate, melting point greater than 280° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04808715 |
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| Source dataset | uspto-grants-1989_02 |
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| ORD ID | ord-4da021c2a21a404bad8c20d31f4d3e36 |
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| Source note | uspto-grants-1989_02 |
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