Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Hexane | HCID 8058 | — |
| Reactant | 5-bromo-4-methylthiopyrimidine | HCID 12270080 | — |
| Product | HCID 22648761 | HCID 22648761 | 28% |
Reaction Steps
10.6 g (52 mmol) of 5-bromo-4-methylthiopyrimidine was dissolved in 100 ml of tetrahydrofuran, and at −60° C., 36 ml of a n-butylithium hexane solution (1.6 mol/l) was dropwise added. After stirring at −60° C. for 30 minutes, 4.1 g (57 mmol) of isobutylaldehyde was dropwise added and further reacted for 1 hour. The reaction solution was poured into water and extracted with ethyl acetate. The obtained organic layer was washed with water and then dried over anhydrous magnesium sulfate. Ethyl acetate was distilled off under reduced pressure, and the residue was purified by silica gel column chromatography (developing solvent/n-hexane:ethyl acetate=3:2) to obtain 2.9 g (yield: 28%) of 5-(1-hydroxy-2-methylpropyl)-4-methylthiopyrimidine as slightly yellow crystals (melting point: 123-127° C.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06806230B1 |
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| Source dataset | uspto-grants-2004_10 |
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| ORD ID | ord-2378c47ddfc0440bb39b47eead57cb9c |
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| Source note | uspto-grants-2004_10 |
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