HuagongsheHuagongshe Chemistry Print Report · For research reference only
Dimethylformamide → 4'-Bromo-[1,1'-biphenyl]-4-carbaldehyde
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | 4,4'-Dibromobiphenyl | HCID 7110 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 4'-Bromo-[1,1'-biphenyl]-4-carbaldehyde | HCID 1392819 | 55% |
Reaction Conditions
| Temperature | -78 °C |
|---|
Reaction Steps
To a solution of 4′,4-dibromobiphenyl (3.12 g, 10 mmol) in dry THF (50 mL) at −78° C. was added dropwise a solution of n-BuLi (1.6M in hexane, 10 mmol). After addition, the mixture was stirred for 30 minutes at −78° C. Anhydrous DMF (50 mL) was then added and the mixture was allowed to stir at room temperature for 2 hours. The solvent was removed under high vacuum and the residue was taken in water and extracted with dichloromethane (2×50 mL). The combined organic layer were dried (MgSO4) and concentrated. Purification by flash chromatography (ethyl acetate/hexane: 2/8) gave the title compound 152 55% yield. MS (ESI)=261 (MH+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07288567B2 |
| Source dataset | uspto-grants-2007_10 |
| ORD ID | ord-2b1a2eac20714682a1de1cee148d596e |
| Source note | uspto-grants-2007_10 |