Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hexachloroethane | HCID 6214 | — |
| Reactant | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| Reactant | HCID 66696670 | HCID 66696670 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 66696628 | HCID 66696628 | — |
Reaction Steps
LiHMDS (1.0 M in THF, 5.4 mL, 5.4 mmol) was added slowly to a solution of Example 52C (1.42 g, 4.94 mmol) in THF (20 mL) at −78° C. After 30 min solid hexachloroethane (1.29 g, 5.44 mmol) was added in one portion, and the reaction mixture was allowed to proceed for 5.5 hr with gradual warming to 5° C. The reaction was quenched with saturated aq NH4Cl solution (10 mL), and the mixture was partitioned between H2O and Et2O. The aqueous phase was extracted once with Et2O, and the combined organic extract was washed with brine, dried (Na2SO4), filtered, and concentrated in vacuo. The result was 1.83 g (115%) of the title compound as a dark yellow oil. 1H NMR (300 MHz, DMSO-d6) δ 7.94 (d, J=8.5, 2H), 7.88 (d, J=8.8, 2H), 5.53 (s, 1H), 3.33 (s, 6H). MS (DCI+) m/z 339 (M+NH4).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07998993B2 |
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| Source dataset | uspto-grants-2011_08 |
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| ORD ID | ord-3a7d33b2a6a84476b234ad3620d4cff2 |
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| Source note | uspto-grants-2011_08 |
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