HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1659172Generated: November 1, 2026
Pyridinium chloride → 2,2-Diethyl-6-hydroxy-4,5-dimethyl-1H-indene-1,3(2H)-dione
https://huagongshe.com/reaction/1659172
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Pyridinium chloride | HCID 10176127 | — |
| Reactant | 2,2-Diethyl-4,5-dimethyl-6-methoxy-indan-1,3-dione | HCID 21516789 | — |
| Solvent | Water | HCID 962 | — |
| Product | 2,2-Diethyl-6-hydroxy-4,5-dimethyl-1H-indene-1,3(2H)-dione | HCID 21516787 | — |
Reaction Steps
A mixture of 2,2-diethyl-4,5-dimethyl-6-methoxy-indan-1,3-dione (5.5 g., 0.021 mole) and pyridine hydrochloride (50 g.) is heated at 180°C. for six hours then poured into water (1 l.) affording 4.0 g. of 2,2-diethyl-4,5-dimethyl-6-hydroxy-indan-1,3-dione which melts at 141°-142°C. after recrystallization from methanol-water.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US03966966 |
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| Source dataset | uspto-grants-1976_06 |
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| ORD ID | ord-f630f2fcd0154bd5a2bd70b72e53a108 |
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| Source note | uspto-grants-1976_06 |
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