Buchwald–Hartwig amination, record ord-c8028b7fd0b24a71a931a3ca28fc4dd0
One recorded run of this reaction. Below is what the source recorded, and nothing added to it.
What was in the flask
| Role | Species | Formula | Yield |
|---|---|---|---|
| Reactant | 1-(Benzyloxy)-4-bromo-2-fluorobenzene | C₁₃H₁₀BrFO | |
| Reactant | (2-Aminoethoxy)(tert-butyl)dimethylsilane | C₈H₂₁NOSi | |
| Reagent | Cesium carbonate | CCs₂O₃ | |
| Catalyst | 2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenyl | C₃₃H₄₉P | |
| Catalyst | Palladium (II) acetate | C₄H₈O₄Pd | |
| Solvent | Toluene | C₇H₈ | |
| Product | 4-(benzyloxy)-N-(2-(tert-butyldimethylsilyloxy)ethyl)-3-fluoroaniline | C₂₁H₃₀FNO₂Si | 44.07% |
Conditions
- Temperature
- 120 °C
Yield
- 44% of 4-(benzyloxy)-N-(2-(tert-butyldimethylsilyloxy)ethyl)-3-fluoroaniline.
Procedure
Copied from the source record, unedited
PdOAc2 (42.3 mg, 0.19 mmol) and dicyclohexyl(2',4',6'-triisopropylbiphenyl-2-yl)phosphine (90 mg, 0.19 mmol) were added in one portion to a degassed solution of 1-(benzyloxy)-4-bromo-2-fluorobenzene (530 mg, 1.89 mmol), 2-(tert- butyldimethylsilyloxy)ethanamine (441 mg, 1.89 mmol) and cesium carbonate (921 mg, 2.83 mmol) in toluene (15 mL) at 20°C in a microwave vial. The microwave vial was sealed and the reaction was heated to 120 °C for 12 hours in the microwave reactor and cooled to RT. The reaction mixture was diluted with EtOAc (50 mL), and washed sequentially with water (50 mL) and saturated brine (50 mL). The organic layer was filtered and dried over Na2SO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradie
The source
This record comes from experimental reaction archive (ord-c8028b7fd0b24a71a931a3ca28fc4dd0). Open the source and check it against what is on this page.
experimental reaction archive record ord-c8028b7fd0b24a71a931a3ca28fc4dd0 from dataset "750 AstraZeneca ELN dataset" (url: https://chemrxiv.org/engage/chemrxiv/article-details/60c9e3f37792a23bfdb2d471). No atom mapping is provided by the source.
How to read this record
This is one experiment, not a rule. It says that on one occasion these species were combined under these conditions and this came out. It does not say the reaction will give the same result on your substrate, and nothing on the page has been generalised into a claim that it would.
The pathway is a separate question, kept on separate pages. A mechanism here is the canonical arrow pushing for a class, run on real structures and labelled rule-derived. It is not evidence, and this record is not a mechanism.