HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1074048Generated: October 27, 2026
Hydrochloric Acid → HCID 178473074, compound
https://huagongshe.com/reaction/1074048
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Ethyl 6-(3,4-dihydroxyphenyl)-2-dimethylamino-5-methylthio-6-oxo-2,4-hexadienoate | HCID 53865515 | — |
| Product | HCID 178473074 | HCID 178473074 | — |
Reaction Steps
The procedure is as in Example 4, starting with ethyl 6-(3,4-dihydroxyphenyl)-2-dimethylamino-5-methylthio-6-oxo-2,4-hexadienoate (1.9 g) and 1N aqueous hydrochloric acid solution (10.8 cc) in ethanol (10.8 cc). The mixture is heated to boiling for 5 minutes, and then cooled to a temperature in the region of 20° C. After purification by crystallization in isopropyl ether (100 cc), ethyl 6-(3,4-dihydroxyphenyl)-2-hydroxy-5-methylthio-6-oxo-2,4-hexadienoate (0.6 g), m.p. 156° C., is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04971979 |
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| Source dataset | uspto-grants-1990_11 |
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| ORD ID | ord-b037ff627448410797eaad923004b750 |
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| Source note | uspto-grants-1990_11 |
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