HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 507334Generated: October 25, 2026
Potassium Carbonate → (S)-(+)-4-(2,3-Epoxypropoxy)carbazole
https://huagongshe.com/reaction/507334
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 4-Hydroxycarbazole | HCID 104251 | — |
| Reactant | (-)-Epichlorohydrin | HCID 2734062 | — |
| Solvent | Isopropanol | HCID 3776 | — |
| Product | (S)-(+)-4-(2,3-Epoxypropoxy)carbazole | HCID 10879208 | 53% |
Reaction Steps
To a solution of 4-Hydroxycarbazole (10.98 g, 0.06 mole) dissolved in IPA (60 mL) was added K2CO3 (20.73 g, 0.15 mole), followed by (R)-(−)-epichlorohydrin (7 ml, 0.09 mole) and the reaction mixture was slowly heated to 80-90° C. and then refluxed for 5 hours. Subsequently the reaction mixture was cooled to room temperature, worked up and purified following the procedure similar to one described in step I for the synthesis of example 23, to afford the desired compound as a light brown colored solid (7.56 g, 53%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07786142B2 |
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| Source dataset | uspto-grants-2010_08 |
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| ORD ID | ord-1664a56bfa674a54a21f971ad01bac96 |
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| Source note | uspto-grants-2010_08 |
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