Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1,5-Diazabicyclo(4.3.0)non-5-ene | HCID 76349 | — |
| Reactant | 4,5-dimethyl-6-oxo-7,8-dihydro-7-bromo-7-isopropyl-6H-indeno[5,4-b]furan-2-carboxylic acid | HCID 21568958 | — |
| Solvent | Dimethyl Sulfoxide | HCID 679 | — |
| Product | HCID 21568951 | HCID 21568951 | — |
Reaction Steps
A solution of 4,5-dimethyl-6-oxo-7,8-dihydro-7-bromo-7-isopropyl-6H-indeno[5,4-b]furan-2-carboxylic acid (0.01 mole) in dimethylsulfoxide (50 ml.) is treated with 1,5-diazabicyclo[4.3.0] -5-nonene (0.20 mole) and stirred in an inert (nitrogen) atmosphere at 25°C. for 1 hour; poured into 1.0 N hydrochloric acid to afford 4,5-dimethyl-6-oxo-7-isopropyl-6H-indeno-[5,4-b]furan-2-carboxylic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US03931239 |
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| Source dataset | uspto-grants-1976_01 |
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| ORD ID | ord-83432dfd4971486687b0129425e3fda2 |
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| Source note | uspto-grants-1976_01 |
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