HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 394919Generated: October 30, 2026
Hydrochloric Acid → HCID 18177877, compound
https://huagongshe.com/reaction/394919
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | HCID 17949425 | HCID 17949425 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 18177877 | HCID 18177877 | 49.2% |
Reaction Steps
The ester (609 mg) was dissolved in 9 ml of ethanol and treated with 1.59 g of potassium hydroxide in 6 ml of water. The heterogeneous mixture was further treated with 4 ml of THF and the resulting clear solution was heated to 45° C. for 1.5 hour. The mixture was diluted with 20 ml of water and the pH was adjusted to 2 with HCl 25%. The mixture was extracted with 3 portions of 25 ml of ethyl acetate. The combined organic extracts were dried over MgSO4 and concentrated in vacuo. The resulting orange oil was purified by flash chromatography (SiO2, 25% ethyl/hexanes) followed by trituration in pentane, giving 290 mg of (RS)-4-[3-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)-oct-1-ynyl]-benzoic acid as a white solid, m.p. 115-116° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06603012B2 |
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| Source dataset | uspto-grants-2003_08 |
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| ORD ID | ord-b503304f6bc3474785810ece1bb232e7 |
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| Source note | uspto-grants-2003_08 |
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