HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 67109Generated: October 31, 2026
Sulfuric Acid → HCID 12674764, compound
https://huagongshe.com/reaction/67109
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Acetyl chloride | HCID 6367 | — |
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | Pyrrole | HCID 8027 | — |
| Reactant | 1-(2-Hydroxyethyl)pyrrole | HCID 10975438 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | HCID 12674764 | HCID 12674764 | — |
Reaction Steps
Once the 1-(2-hydroxyethyl)pyrrole is obtained, it is esterified by any suitable means known in the art. Suitably, acetic acid is reacted with the 1-(2-hydroxyethyl)pyrrole in the presence of a strong acid such as sulfuric acid and heating the reaction mixture sufficiently to distill off the water that is formed as a result of the reaction. Preferably however, the pyrrole is reacted with acetyl chloride or acetic anhydride in a suitable solvent wherein there is a molar excess of the acetyl chloride or acetic anhydride. The reaction takes place at room temperature and will be completed in a relatively short period of time, with only an hour or two at the most being required for the reaction to reach completion. The 1-(2-acetoxyethyl)pyrrole is then isolated and purified by any means known in the art such as extraction with a suitable organic solvent and removal of the solvent to yield the desired compound represented by Formula (III).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04344943 |
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| Source dataset | uspto-grants-1982_08 |
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| ORD ID | ord-f770c4c3d4424493bd96bf077e2c6ba2 |
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| Source note | uspto-grants-1982_08 |
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