Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | 2-(Methylamino)ethanol | HCID 8016 | — |
| Reactant | 7-methyl-1H-indol-5-ol | HCID 18932734 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 67243541 | HCID 67243541 | 77.2% |
Reaction Steps
A mixture of paraformaldehyde (82.0 mg, 2.71 mmol) and 2-methylaminoethanol (0.218 mL, 2.71 mmol) in EtOH (2 mL) was heated at 50° C. for 20 minutes. 7-methyl-1H-indol-5-ol (Intermediate 11, 500 mg, 3.4 mmol) in EtOH (10 mL) was added and the mixture was stirred for 1.5 hours at room temperature. The mixture was diluted with DCM (15 mL) and divided in two portions to be purified on two SCX-columns (5 g) preconditioned with DCM/MeOH 1:1 (20 mL) and eluted with DCM/MeOH 1:1 (50 mL) (contains only sm) and 1 M MeOH (40 mL) (contains product) to give 490 mg of a brown oil that turned solid. MS m/z 235 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07960374B2 |
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| Source dataset | uspto-grants-2011_06 |
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| ORD ID | ord-12e19439141445c88474aa8166c3d198 |
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| Source note | uspto-grants-2011_06 |
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