Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 2,4-Dichlorobenzyl chloride | HCID 7212 | — |
| Reactant | 1-(Trimethylsilyl)pyrrolidin-2-one | HCID 84461 | — |
| Reactant | Lithium diisopropylamide | HCID 2724682 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 59299392 | HCID 59299392 | 67% |
Reaction Steps
Charge a flask with 1-trimethylsilanyl-pyrrolidin-2-one (5.0 g, 32 mmol), dissolve in THF (150 mL) and cool to −78° C. under nitrogen. Add LDA (2M, 19 mL, 38 mmol) and stir at −78° C. for 10 minutes. Add 2,4-dichloro-1-chloromethyl-benzene (8.1 g, 41 mmol) and warm to room temperature. Pour into water after 2 hours and extract with methylene chloride. Dry over sodium sulfate, filter and concentrate. Purify the residue over silica gel (1:1 hexanes:ethylacetate to 100% ethyl acetate) to afford 5.2 g (67%) of the title compound as a white solid. 1H NMR (CDCl3) δ 7.38 (d, 1H), 7.23 (d, 1H), 7.18 (dd, 1H), 6.01 (bs, 1H), 3.31 (m, 3H), 2.75 (m, 2H), 2.13 (m, 1H), 1.84 (m, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07713979B2 |
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| Source dataset | uspto-grants-2010_05 |
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| ORD ID | ord-acd8336eeae645d0ab29398c9fca942d |
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| Source note | uspto-grants-2010_05 |
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