HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 911270Generated: October 30, 2026
Hydrochloric Acid → HCID 13440335, compound
https://huagongshe.com/reaction/911270
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1,1,1-Trifluoro-2-propanol | HCID 9774 | — |
| Reactant | 4-Fluorobenzonitrile | HCID 14517 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Solvent | Hexamethylphosphoramide | HCID 12679 | — |
| Product | HCID 13440335 | HCID 13440335 | 70.4% |
Reaction Steps
Add 1,1,1-trifluoro-2-propanol (3.8 g, 66 mmol) slowly to a slurry of sodium hydride (730 mg, 60% in mineral oil, washed with hexane) in HMPA (5 mL) under nitrogen. Stir the slurry for 15 min and add 4-fluorobenzonitrile (2 g, 16.5 mmol). Heat the slurry in a sealed flask to 90° C. for 16 h. Cool the mixture to ambient temperature and pour the mixture into a flask containing 5% aqueous HCl (20 mL). Extract the mixture with diethyl ether (3×50 mL), and wash with 5% aqueous HCl (25 mL). Dry the organic layer over Na2SO4 and concentrate in vacuo. Purify by chromatography on silica gel eluting with hexane/EtOAc (9:1) to obtain the desired intermediate (2.5 g, 70%). GC-MS m/z: 215 (M+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08022062B2 |
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| Source dataset | uspto-grants-2011_09 |
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| ORD ID | ord-ae69009ce4c347959be510d8fad56935 |
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| Source note | uspto-grants-2011_09 |
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