Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | HCID 21364580 | HCID 21364580 | — |
| Reactant | HCID 178506676 | HCID 178506676 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Cyclohexane diethylether | HCID 21895417 | — |
| Product | HCID 58703550 | HCID 58703550 | 70% |
Reaction Steps
Add a solution of phenyllithium (7.80 mL of a 1.8 M solution in cyclohexane-Et2O (70:30), 14.04 mmol) over 15 seconds to a −78° C. solution of 1,3-dibromo-2,5-bis-methoxymethoxy-benzene (5.00 g, 14.04 mmol) in THF (100 mL). After stirring the reaction for 15 minutes, add DMF (2.17 mL, 28.08 mmol) and stir the reaction for 1 hour. Pour the reaction into H2O (150 mL) and extract with EtOAc (2×100 mL). Combine the organic extracts, wash with brine, dry (MgSO4), filter and concentrate. Purify the crude material using silica gel chromatography, eluting with Hex:EtOAc (80:20) to afford the subtitled product (3.00 g, 70%) as an oil. 1H NMR (CDCl3) δ 3.47 (s, 3H), 3.61 (s, 3H), 5.14 (s, 2H), 5.16 (s, 2H), 7.45 (d, J=3.0 Hz, 1H), 7.53 (d, J=3.1 Hz, 1H), 10.29 (s, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07279499B2 |
|---|
| Source dataset | uspto-grants-2007_10 |
|---|
| ORD ID | ord-eaa75f200f204571b80db8c27a922bb1 |
|---|
| Source note | uspto-grants-2007_10 |
|---|