Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethylene Glycol | HCID 174 | — |
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 7-Bromobicyclo[4.2.0]octa-1,3,5-triene | HCID 568591 | — |
| Reactant | Potassium tert-butoxide | HCID 23665647 | — |
| Product | HCID 14119832 | HCID 14119832 | — |
Reaction Steps
To 56.1 g of potassium t-butoxide, 150 ml of ethylene glycol was dropwise added in a stream of nitrogen to dissolve potassium t-butoxide completely. To the solution, 45.3 g of 1-bromobenzocyclobutene (synthesized according to a method of DeCamp et al., J. Org. Chem., 1981, 46, 3918) was dropwise added. After the addition was completed, the mixture was heated to 80° C., and stirred for 8 hours. The mixture was cooled to room temperature, and poured into ice-cold water. After adjusting pH to 6 with hydrochloric acid, an organic phase was extracted with ethyl acetate. After the solvent was distilled away, the residue was purified in a silica gel chromatography to obtain 20.6 g of 1-(2′-hydroxyethoxy)-benzocyclobutene.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06780567B2 |
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| Source dataset | uspto-grants-2004_08 |
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| ORD ID | ord-353fa5376396467ba0a8c3ae2fa37401 |
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| Source note | uspto-grants-2004_08 |
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