Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Chloroform | HCID 6212 | — |
| Reactant | Tetramethyltin | HCID 11661 | — |
| Reactant | 7-Bromo-5-nitroindoline | HCID 323490 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 7-Methyl-5-nitro-1H-indole | HCID 15453466 | 74.1% |
Reaction Steps
To a solution of 7-bromo-5-nitroindoline (0.65 g, 2.7 mmol) in 10 mL of DMF were added tetramethyltin (1.0 mL, 7.3 mmol) and bis(triphenylphosphine)palladium(II) chloride (0.10 g) in a portion and resulting mixture was stirred in sealed tube for 12 h at 140° C. The reaction mixture was concentrated in vacuo, providing a dark oily residue which was subjected to column chromatography (CHCl3, neat) to yield 0.35 g (2.0 mmol, 74%) of the desired product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06723741B2 |
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| Source dataset | uspto-grants-2004_04 |
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| ORD ID | ord-877b727d19434db8970ed91901834ad6 |
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| Source note | uspto-grants-2004_04 |
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