HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1264125Generated: November 2, 2026
Hydrochloric Acid → 8-Methyl-5,10-dihydroindeno[1,2-b]indole
https://huagongshe.com/reaction/1264125
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1-Indanone | HCID 6735 | — |
| Reactant | 4-Methylphenylhydrazine monohydrochloride | HCID 12504 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 8-Methyl-5,10-dihydroindeno[1,2-b]indole | HCID 22247079 | 91.9% |
Reaction Steps
In a 250 mL round bottom flask, 180 mL of ethanol, 10 mL of HCl, 16.3 grams of 1-indanone (0.124 mole) and 19.5 grams of p-methylphenylhydrazine hydrochloride (0.124 mole) are heated to reflux for six hours. After cooling to 25° C., the resulting precipitate is filtered, washed twice with 100 mL of 10% aqueous ethanol, twice with 50 mL of water, and then twice with 50 mL of hexane. After drying, 25 grams of 8-methyl-5, 10-dihydroindeno[1,2-b]indole is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06541583B2 |
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| Source dataset | uspto-grants-2003_04 |
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| ORD ID | ord-2d127d65184a454bb04ee95ebfc3b53d |
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| Source note | uspto-grants-2003_04 |
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