Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hexane | HCID 8058 | — |
| Reactant | Dimethyl Disulfide | HCID 12232 | — |
| Reactant | 1,3-dibromo-dibenzofuran | HCID 526288 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 19887832 | HCID 19887832 | 87.3% |
Reaction Steps
A solution of 1,3-dibromodibenzofuran 18 (0.500 g, 1.54 mmol) in THF (53 ml) was cooled to -70° C. and a solution of n-butyllithium in hexane (2.2M, 0.84 ml, 1.8 mmol) was added dropwise. The resulting red solution was allowed to warm to -50° C. over 30 minutes. Methyl disulfide (0.162 ml, 1.84 mmol) was added and the solution was allowed to warm to -10° C. After stirring for 20 minutes, the solution was poured into ethyl acetate and washed successively with 1N NaOH, H2O, and brine. Drying over MgSO4 and evaporation gave a tan solid which was purified by flash chromatography through 40 g of silica gel (10% CH2Cl2 -hexane) to yield 394 mg (87%) of the title compound as a white powder.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05132420 |
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| Source dataset | uspto-grants-1992_07 |
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| ORD ID | ord-169ac76d300d4b648a6bb28525e473ef |
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| Source note | uspto-grants-1992_07 |
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