Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 19907376 | HCID 19907376 | — |
| Reactant | Aluminium lithium hydride | HCID 21226445 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 19907358 | HCID 19907358 | 22.6% |
Reaction Steps
First, 525 mg of lithium aluminium hydride was added to 30 ml of absolute tetrahydrofuran, then 20 ml of a solution of 2.39 g 1,4-bis(4,4-diethoxycarbonylbutyl)benzene in absolute tetrahydrofuran was added dropwise thereto with stirring at a room temperature, and the mixture was refluxed for one hour. After adding 4 ml of ethyl acetate with ice-cooling, the reaction mixture was stirred for 10 minutes. To the mixture were further added successively 0.5 ml of water, 0.5 ml of 15% sodium hydroxide aqueous solution and 1.5 ml of water, and the mixture was stirred for one hour. After filtering off insoluble matter, the filtrate was evaporated under a reduced pressure. The oily residue thus obtained was applied to a silica gel column and eluted with chloroform/ethanol (5:1) to obtain 350 mg of the title compound as a colorless crystal.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05093370 |
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| Source dataset | uspto-grants-1992_03 |
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| ORD ID | ord-bb59fcb4e8b84c02ac48692861632da4 |
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| Source note | uspto-grants-1992_03 |
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