Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Diisobutylaluminumhydride | HCID 21225700 | — |
| Reactant | HCID 66974561 | HCID 66974561 | — |
| Solvent | Toluene | HCID 1140 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 66974663 | HCID 66974663 | 40% |
Reaction Steps
To a solution of methyl 5-(4-cyclohexylphenyl)-1H-pyrrole-3-carboxylate (3.0 g) in absolute tetrahydrofuran (40 mL) was added dropwise a 1.5 mol/L solution (21.0 mL) of diisobutylaluminum hydride in toluene at −78° C. The mixture was further stirred at the same temperature for 2 hr. To the reaction mixture was added 1 mol/L hydrochloric acid, and the mixture was diluted with ethyl acetate. The insoluble material was filtered off through celite, and the filtrate was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=1:1) to give the title compound as crystals (yield 1.07 g, 40%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07498337B2 |
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| Source dataset | uspto-grants-2009_03 |
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| ORD ID | ord-ec06b0df98f54598b2ba320b02085040 |
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| Source note | uspto-grants-2009_03 |
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