Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | tert-Butyl (4-aminophenyl)carbamate | HCID 688611 | — |
| Reactant | 1H-Imidazolium, 2-chloro-4,5-dihydro-1,3-dimethyl-, chloride | HCID 10986715 | — |
| Reactant | 5-(5,6-Dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzoic Acid | HCID 22054271 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 22054314 | HCID 22054314 | 48% |
Reaction Steps
N-(tert-Butoxycarbonyl)-p-phenylenediamine (0.209 g, 1.002 mmol), triethylamine (0.101 g, 1.002 mmol) and 2-chloro-1,3-dimethylimidazolinium chloride (0.279 g, 1.002 mmol) were added to a methylene chloride solution (100 ml) of 5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzoic acid (0.250 g, 0.668 mmol) and the resulting solution was stirred at room temperature for 6 hours. The reaction solution was poured into ice water and then extracted with methylene chloride. The extract was washed with water and then dried, and the solvent was removed by distillation. The obtained residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1) and then recrystallized from ethanol to obtain the titled compound (0.180 g, 0.319 mmol, 48%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07064124B2 |
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| Source dataset | uspto-grants-2006_06 |
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| ORD ID | ord-bf317f5914d74f7cb5f2957b4235d8e6 |
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| Source note | uspto-grants-2006_06 |
|---|