Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Toluene | HCID 1140 | — |
| Reactant | 4-tert-Butylcatechol | HCID 7381 | — |
| Reactant | HCID 14667723 | HCID 14667723 | — |
| Product | HCID 86751423 | HCID 86751423 | — |
Reaction Steps
231 g (1 mol) of ethyl 1-benzyl-2,5-dihydropyrrole-3-carboxylate and 10 g of 4-tert-butylpyrocatechol are dissolved in 1500 ml of toluene, 20 bar of nitrogen are injected and 350 g of 1,3-betadiene are then blown into the autoclave. The mixture is heated at 120° C. for three days and cooled, the pressure is released, and the solution is concentrated and distilled. Yield: 264.9 g (87.6% of theory), boiling point: 127°-140° C./0.1 mbar. The product is 94% pure according to gas-chromatographic detemination.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05679689 |
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| Source dataset | uspto-grants-1997_10 |
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| ORD ID | ord-00cec164e60f4cb78af06d2253000f63 |
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| Source note | uspto-grants-1997_10 |
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