Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | 1,1,1,3,3,3-Hexafluoro-2-propanol | HCID 13529 | — |
| Reactant | 2-Oxopropyl bicyclo[2.2.1]hept-5-ene-2-carboxylate | HCID 57983970 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Hexane | HCID 8058 | — |
| Product | HCID 57983925 | HCID 57983925 | 58.2% |
Reaction Steps
In a nitrogen atmosphere at 5° C., 100 ml of 1.6M n-butyllithium in hexane was added to a mixture of 21.7 g of 1,1,1,3,3,3-hexafluoro-2-propanol and 120 g of tetrahydrofuran. The mixture was stirred at 5° C. for 1 hour. Then a dilution of 22.8 g of 2-oxopropyl 5-norbornene-2-carboxylate in 30 g of tetrahydrofuran was added at 5° C. The mixture was stirred for 15 hours, after which dilute hydrochloric acid was added for quenching and neutralization. This was followed by conventional aqueous work-up and recrystallization from hexane for purification, collecting 24.6 g of 2-methyl-3,3,5,5,5-pentafluoro-2,4,4-trihydroxypentyl 5-norbornene-2-carboxylate (yield 58%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07638256B2 |
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| Source dataset | uspto-grants-2009_12 |
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| ORD ID | ord-0edd60dcc8004f189c8c27fed10880ed |
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| Source note | uspto-grants-2009_12 |
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