Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Malonic Acid | HCID 867 | — |
| Reactant | 2-Chloro-5-nitrobenzaldehyde | HCID 72933 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Solvent | Piperidine | HCID 8082 | — |
| Product | HCID 605982 | HCID 605982 | 80% |
Reaction Steps
A mixture of 2 chloro-5-nitrobenzaldehyde (100 g., 0.54 mole), malonic acid (122 g., 1.2 mole) in pyridine (300 ml) and piperidine (5 ml) was heated at 100° C. for one hour, during which time considerable gassing occurred. After refluxing the reaction mixture for a further few minutes, it was then cooled. The resulting precipitate was collected, washed with water and dried to give an 80% yield, m.p. 226°-228° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04979982 |
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| Source dataset | uspto-grants-1990_12 |
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| ORD ID | ord-f2b729ba37134af48d0e85dfdbea8896 |
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| Source note | uspto-grants-1990_12 |
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