HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 40447Generated: October 26, 2026
4-(Dimethylamino)Benzaldehyde → n-(5-Carboxypentyl)-4-(4-(dimethylamino)styryl)pyridinium bromide
https://huagongshe.com/reaction/40447
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 4-(Dimethylamino)Benzaldehyde | HCID 7479 | — |
| Reactant | Piperidine | HCID 8082 | — |
| Reactant | 1-(5-Carboxy-pentyl)-2-methyl-pyridinium bromide | HCID 66643503 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | n-(5-Carboxypentyl)-4-(4-(dimethylamino)styryl)pyridinium bromide | HCID 66643380 | — |
Reaction Steps
A mixture of 4-N,N-dimethylaminobenzaldehyde (3 g, 20 mmoles), N-(5-carboxy-pentyl)picolinium bromide (5.6 g, 20 mmoles) and piperidine (2 mL) in ethanol (100 mL) was heated at 60° C. overnight. The mixture was evaporated to dryness in vacuo. The residue was redissolved in methanol and then precipitated with ether to give the product (6.7 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08530195B2 |
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| Source dataset | uspto-grants-2013_09 |
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| ORD ID | ord-af6963a81e4745939b0548827d31456a |
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| Source note | uspto-grants-2013_09 |
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