Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Guanidine | HCID 3520 | — |
| Reactant | Sodium Methoxide | HCID 10942334 | — |
| Reactant | Ethyl 4-methoxy-2-methyl-3-oxobutanoate | HCID 18315649 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 178494689 | HCID 178494689 | 26.6% |
Reaction Steps
Ethyl 2-methyl-3-oxo4-methoxybutyrate(10.5 g, 60 mmol) was added slowly to a suspension of sodium methoxide (6.5 g, 120 mmol) in dimethylformamide(10 ml) while maintaining the reaction temperature under 20° C. A solution of guanidine(5.7 g, 60 mmol) in ethanol was added to a reaction mixture, which was then refluxed for 5 hours, cooled to a room temperature, and neutralized with conc. sulfuric acid. The resulting solid was filtered and dried to give 2.7 g of the titled compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06352993B1 |
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| Source dataset | uspto-grants-2002_03 |
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| ORD ID | ord-c600e8bf05234cdca9ee1a0678cdb5d4 |
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| Source note | uspto-grants-2002_03 |
|---|