HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Bromobenzonitrile → HCID 67416808, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Bromobenzonitrile | HCID 16272 | — |
| Reactant | Binap, (A+-)- | HCID 634876 | — |
| Reactant | 2-Methylpiperazine, (S)- | HCID 2734219 | — |
| Reactant | Sodium t-butoxide | HCID 23676156 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Solvent | Dimethylacetamide | HCID 31374 | — |
| Product | HCID 67416808 | HCID 67416808 | 48.8% |
Reaction Steps
A mixture 2-bromobenzonitrile (1.0 g, 5.494 mmol), (S)-(+)-2-methylpiperazine (0.60 g, 5.99 mmol), Pd2(dba)3 (0.503 g, 0.549 mmol), rac-BINAP (1.026 g, 1.648 mmol) and NaOtBu (2.11 g, 21.976 mmol) in DMA (27 mL) was heated at 80° C. for 2.5 h. The mixture was allowed to cool, diluted with EtOAc and washed with water. The organic layer was washed with sat.aq. NaHCO3, brine and dried (Na2SO4). Chromatography (EtOAc/MeOH) afforded 2-((R)-3-methyl-piperazin-1-yl)-benzonitrile (540 mg) as a white solid. 1H (400 MHz, d6-DMSO) δ: ppm; m/z (M+1) 202.21.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08044041B2 |
| Source dataset | uspto-grants-2011_10 |
| ORD ID | ord-f6cff52468254721b2b64d6bf34709b7 |
| Source note | uspto-grants-2011_10 |