HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 224308Generated: October 30, 2026
Nitrogen oxide (N2O4) → 2-Nitro-3-phenylnaphtho-[1,2-b]furan-5-carboxylic acid
https://huagongshe.com/reaction/224308
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Nitrogen oxide (N2O4) | HCID 25352 | — |
| Reactant | 3-Phenylnaphtho-[1,2-b]furan-5-carboxylic acid | HCID 15571609 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | 2-Nitro-3-phenylnaphtho-[1,2-b]furan-5-carboxylic acid | HCID 15571606 | — |
Reaction Steps
The product of step A is dissolved partially in 125 ml. of hot chloroform, and 1 g. of dinitrogen tetraoxide is added. The mixture is stirred at 20° C. for about one day. The mixture is evaporated to provide a residue which is triturated with isopropyl alcohol. The residue is separated by filtration and recrystallized from acetic acid to provide light yellow crystals of 2-nitro-3-phenylnaphtho-[1,2-b]furan-5-carboxylic acid, m.p. 286°-288° C. (dec.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04231965 |
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| Source dataset | uspto-grants-1980_11 |
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| ORD ID | ord-5722ff6825904abda51ee917b5c7a8a7 |
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| Source note | uspto-grants-1980_11 |
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