HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1372535Generated: November 1, 2026
Potassium Carbonate → HCID 9966834, compound
https://huagongshe.com/reaction/1372535
Participants
| Role | Name | HCID | Charge |
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| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 5-Amino-4-bromo-2-ethyl-2-(3-oxopentyl)-1-indanone | HCID 17972752 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 9966834 | HCID 9966834 | 90.3% |
Reaction Steps
The crude diketone (1.17 g) from step 3 was dissolved in acetic acid (14 mL) and the solution was diluted with aqueous 6N HCl (14 mL). The resulting mixture was stirred and heated in an oil bath at 80° C. for 5 hours and then kept at room temperature for 3 days. The mixture was diluted with EtOAc (100 mL) and carefully basified with aqueous K2CO3 (200 mL). The organic portion was washed with brine, dried over MgSO4 filtered, and evaporated under vacuum. The residue was lyophilized from benzene to afford crude 7-amino-8-bromo-9a-ethyl-4-methyl-1,2,9,9a-tetrahydro-3H-fluoren-3-one (1.0 g) as an amorphous solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07157604B2 |
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| Source dataset | uspto-grants-2007_01 |
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| ORD ID | ord-20a3673fac2b4d139bf8f92dcf078356 |
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| Source note | uspto-grants-2007_01 |
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