Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Iodide | HCID 5238 | — |
| Reactant | Hexamethyldisilazane | HCID 13838 | — |
| Reactant | (1R,2R)-N1,N1-Dimethylcyclohexane-1,2-diamine | HCID 11275066 | — |
| Reactant | HCID 49765293 | HCID 49765293 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 49765294 | HCID 49765294 | — |
Reaction Steps
To a mixture of 2-(5-bromo-2-ethylphenyl)cyclohexane-1,3-dione (0.917 g, 3.11 mmol), sodium iodide (0.934 g, 6.23 mmol) and hexamethyldisilazane (0.454 g, 3.11 mmol) is added copper (I) iodide (0.030 g, 0.15 mmol) and trans-N,N-dimethyl-1,2-cyclohexane diamine (0.044 g, 0.31 mmol). Degassed dioxane (5 ml) is added and the mixture is purged with nitrogen then heated at 180° C. for 1 hour under microwave irradiation. After cooling to room temperature the reaction mixture is treated with 2M aqueous hydrochloric acid and extracted with dichloromethane. The phases are separated and the aqueous phase is further extracted with dichloromethane. Organic fractions are combined then evaporated under reduced pressure to yield a crude product which is purified by flash column chromatography (10% ethyl acetate/hexane to 70% ethyl acetate/hexane eluant) to afford 2-(2-ethyl-5-iodophenyl)cyclohexane-1,3-dione as a white foam.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08865623B2 |
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| Source dataset | uspto-grants-2014_10 |
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| ORD ID | ord-87d2f789a9394e3680500b84f128f3e8 |
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| Source note | uspto-grants-2014_10 |
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