Buchwald–Hartwig amination, record ord-bddc6734b7ce4143a8ed8f8385933b6e
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 | Ethyl 5-bromopyridine-3-carboxylate | C₈H₈BrNO₂ | |
| Reactant | Morpholine | C₄H₉NO | |
| Reagent | sodium 2-methylpropan-2-olate | C₄H₉NaO | |
| Catalyst | 2-(Dicyclohexylphosphino)-2'-(dimethylamino)biphenyl | C₂₆H₃₆NP | |
| Catalyst | Bis(dibenzylideneacetone)palladium | C₅₁H₄₂O₃Pd₂ | |
| Solvent | 1,4-Dioxane | C₄H₈O₂ | |
| Product | Ethyl 5-morpholin-4-ylpyridine-3-carboxylate | C₁₂H₁₆N₂O₃ | 0% |
Conditions
- Temperature
- 80 °C
Yield
- 0% of Ethyl 5-morpholin-4-ylpyridine-3-carboxylate.
Procedure
Copied from the source record, unedited
ethyl 5-bromonicotinate (200 mg, 0.87 mmol), morpholine (0.083 mL, 0.96 mmol), sodium 2-methylpropan-2-olate (167 mg, 1.74 mmol) and 2'-(dicyclohexylphosphino)-N,N-dimethylbiphenyl-2-amine (17.11 mg, 0.04 mmol) were suspended in dioxane (5 mL). The reaction flask was purged with nitrogen and TRIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (19.90 mg, 0.02 mmol) was added. The reaction was stirred at 80 °C for 90 minutes. LCMS analysis appeared to indicate addition of 2 morpholine rings and the reaction was abandoned.
The source
This record comes from experimental reaction archive (ord-bddc6734b7ce4143a8ed8f8385933b6e). Open the source and check it against what is on this page.
experimental reaction archive record ord-bddc6734b7ce4143a8ed8f8385933b6e 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.