Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Hexamethyldisilazane | HCID 13838 | — |
| Reactant | HCID 18780267 | HCID 18780267 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | HCID 18780288 | HCID 18780288 | 31.7% |
Reaction Steps
A solution of 0.411 g of 3-[1-(3-acetoxypropyl)-3-indolyl]-4-(2-nitrophenyl)furan-2,5-dione in 50 ml of chloroform was treated with a mixture of 1.53 g of 1,1,1,3,3,3-hexamethyldisilazane and 0.3 g of methanol and the mixture was heated at 60° C. for 1 hour. A further 1.53 g of hexamethyldisilazane and a further 0.3 g of methanol were added and the heating was continued overnight before adding further 1.53 g of hexamethyldisilazane and 0.3 g of methanol. The mixture was heated for a further 1 hour. The solvents were removed under reduced pressure and the residue was chromatographed on silica gel with 5% methanol in dichloromethane to give 130 mg of 3-[1-(3-acetoxypropyl)-3-indolyl]-4-(2-nitrophenyl)-1H-pyrrole-2,5-dione, m.p. 77°-78° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05057614 |
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| Source dataset | uspto-grants-1991_10 |
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| ORD ID | ord-9965c574484749a0a7bcff568780a9a5 |
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| Source note | uspto-grants-1991_10 |
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