Buchwald–Hartwig amination, record ord-31892db8bbd04de79164da0921726b58
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 | 4-Chloro-3-(methanesulfonylmethyl)aniline | C₈H₁₀ClNO₂S | |
| Reactant | 5-Chloro-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbonitrile | C₁₀H₈ClN₅ | |
| Reagent | Cesium carbonate | CCs₂O₃ | |
| Catalyst | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | C₃₉H₃₂OP₂ | |
| Catalyst | Bis(dibenzylideneacetone)palladium | C₅₁H₄₂O₃Pd₂ | |
| Solvent | Dimethylacetamide | C₄H₉NO | |
| Product | 5-[4-Chloro-3-(methylsulfonylmethyl)anilino]-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbonitrile | C₁₈H₁₇ClN₆O₂S | 35.03% |
Conditions
- Temperature
- 150 °C
Yield
- 35% of 5-[4-Chloro-3-(methylsulfonylmethyl)anilino]-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbonitrile.
Procedure
Copied from the source record, unedited
In a 40mL vial (t=g) was 5-chloro-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (88 mg, 0.38 mmol), [Reactants], and cesium carbonate (135 mg, 0.41 mmol) in DMA (0.5 mL) ([VOLUME]),Pd2(dba)3 (17.24 mg, 0.02 mmol) and (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) (21.79 mg, 0.04 mmol) were added. to give a brown suspension. The vial was filled with N2, 150C microwave for 30 min. LCMS showed completion. added DMF(3 mL), filtered through celite. concentrated. The residue was washed with EtOAc and water, MeoH to give about 55mg light brown solid
The source
This record comes from experimental reaction archive (ord-31892db8bbd04de79164da0921726b58). Open the source and check it against what is on this page.
experimental reaction archive record ord-31892db8bbd04de79164da0921726b58 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.