Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydroquinone | HCID 785 | — |
| Reactant | Cyclopentadiene | HCID 7612 | — |
| Reactant | 5-Hydroxyfuran-2(5H)-one | HCID 21076 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | HCID 67908432 | HCID 67908432 | 61,756.5% |
Reaction Steps
A mixture of 30 g of 5-hydroxy-2(5H)-furanone, 150 ml of chloroform, 50 mg of hydroquinone and 35 ml of freshly distilled cyclopentadiene was stirred at 20° C. under an inert atmosphere and stirred for 17 hours at 20°-45° C. The mixture was evaporated to dryness under reduced pressure and the residue was crystallized from an isopropyl ether-petroleum ether mixture to obtain 46.6 g of 3-hydroxy-tetrahydro-4,7-methano-isobenzofuran-1-one melting at ≃103° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04658043 |
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| Source dataset | uspto-grants-1987_04 |
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| ORD ID | ord-713d9d179c834a88884167e9389b3622 |
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| Source note | uspto-grants-1987_04 |
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