Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | HCID 53896521 | HCID 53896521 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 54357522 | HCID 54357522 | 101.3% |
Reaction Steps
To a solution of (1R)-N2 -(bromoacetyl)-1-(1H-indol-3-ylmethyl)-1,2-ethanediamine (3.30 g) in dimethylformamide (70 ml) was added potassium carbonate (3.30 g) at room temperature. The reaction mixture was stirred at 110° C. for 1 hour and 20 minutes. After cooling to room temperature, water and dichloromethane were added into the mixture, and the organic layer was separated. The aqueous layer was extracted successively with dichloromethane several times and a mixed solvent of ethyl acetate and methanol (10:1). The extracts were combined and dried over magnesium sulfate, and concentrated under reduced pressure to give (5R)-5-(1H-indol-3-ylmethyl)piperazin-2-one (2.47 g) as an oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05939413 |
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| Source dataset | uspto-grants-1999_08 |
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| ORD ID | ord-6e8a1e3b2c2441dda7c0083b383aa2fc |
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| Source note | uspto-grants-1999_08 |
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