HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 989290Generated: October 25, 2026
4-Chloro-7,8-dimethoxybenzo[g]quinoline-3-carbonitrile → 4-(4-Chloro-5-methoxy-2-methylanilino)-7,8-dimethoxybenzo[g]quinoline-3-carbonitrile
https://huagongshe.com/reaction/989290
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 4-Chloro-7,8-dimethoxybenzo[g]quinoline-3-carbonitrile | HCID 9944116 | — |
| Reactant | Pyridinium chloride | HCID 10176127 | — |
| Reactant | 4-Chloro-5-methoxy-2-methylaniline | HCID 12325879 | — |
| Solvent | Glycol monoethyl ether | HCID 8076 | — |
| Product | 4-(4-Chloro-5-methoxy-2-methylanilino)-7,8-dimethoxybenzo[g]quinoline-3-carbonitrile | HCID 5330443 | 82.1% |
Reaction Steps
Following the procedure of Example 11, a mixture of 75.8 mg (0.25 mmol) of 4-chloro-7,8-dimethoxybenzo[g]quinoline-3-carbonitrile, 51.5 mg (0.30 mmol) of 4-chloro-5-methoxy-2-methylaniline and 28.9 mg (0.25 mmol) of pyridine hydrochloride in 5.0 mL of 2-ethoxyethanol is heated at 120-130° C. for 2 hours to yield the crude product. Purification of the crude product on preparative TLC (developing solvent: 95:5 methylene chloride/methanol) yields 88.7 mg (82.1%) of the pure product as a yellow solid, mp 171-173° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06638929B2 |
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| Source dataset | uspto-grants-2003_10 |
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| ORD ID | ord-0b2675c889a94bb1be051f275e8d7f46 |
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| Source note | uspto-grants-2003_10 |
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