Buchwald–Hartwig amination, record ord-96460abed19147c3abf8fef3ac794b48
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 | 5-Chloro-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbonitrile | C₁₀H₈ClN₅ | |
| Reactant | CC(=O)Nc1cc(N)ncc1C | C₈H₁₁N₃O | |
| Reagent | Cesium carbonate | CCs₂O₃ | |
| Catalyst | Di-tert-butyl(2',4',6'-tris(propan-2-yl)-(1,1'-biphenyl)-2-yl)phosphane | C₂₉H₄₅P | |
| Catalyst | Bis(dibenzylideneacetone)palladium | C₅₁H₄₂O₃Pd₂ | |
| Solvent | Dimethylformamide | C₃H₇NO | |
| Product | N-[2-[[3-cyano-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidin-5-yl]amino]-5-methyl-4-pyridinyl]acetamide | C₁₈H₁₈N₈O | 10.6% |
Conditions
- Temperature
- 90 °C
Yield
- 11% of N-[2-[[3-cyano-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidin-5-yl]amino]-5-methyl-4-pyridinyl]acetamide.
Procedure
Copied from the source record, unedited
Ref: _Angew. Chem. Int. Ed._ **2006** , _45_ , 6523-6527 1\. To a microwave tube was added N-(2-amino-5-methylpyridin-4-yl)acetamide (43 mg, 0.26 mmol), 5-chloro-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (85 mg, 0.36 mmol), Cs2CO3 (254 mg, 0.78 mmol), Pd2dba3 (23.84 mg, 0.03 mmol), and di- tert-butyl(2',4',6'-triisopropylbiphenyl-2-yl)phosphine (22.11 mg, 0.05 mmol). The mixture was dissolved in DMF (1 mL) and sealed. The tube was de-gassed and inflated with N2. 2\. The reaction was heated at 90°C in oil-bath for 4 hr. LCMS showed partial formation of product. Heated overnight at 90°C. 3\. The reaction mixture was filtered through celite pad and the filtrate was loaded onto column and run chromotography to purify (10% MeOH in DCM), semi- pure product was obtained and
The source
This record comes from experimental reaction archive (ord-96460abed19147c3abf8fef3ac794b48). Open the source and check it against what is on this page.
experimental reaction archive record ord-96460abed19147c3abf8fef3ac794b48 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.