Buchwald–Hartwig amination: 2-[(2,5-dichloro-4-pyridinyl)amino]-N-(methyloxy)benzamide → 2-({5-Chloro-2-[(1,3-dimethyl-1H-pyrazol-4-yl)-amino]-4-pyridinyl}amino)-N-(methyloxy)benzamide
14% yield, run at 150 °C, as recorded by experimental reaction archive. The written procedure is below.
The atoms, from reactants to products
What was in the flask
| Role | Species | Formula | Yield |
|---|---|---|---|
| Reactant | 2-[(2,5-dichloro-4-pyridinyl)amino]-N-(methyloxy)benzamide | C₁₃H₁₁Cl₂N₃O₂ | |
| Reactant | 1,3-dimethyl-1H-pyrazol-4-amine | C₅H₉N₃ | |
| Reagent | sodium 2-methylpropan-2-olate | C₄H₉NaO | |
| Catalyst | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | C₃₉H₃₂OP₂ | |
| Catalyst | Bis(dibenzylideneacetone)palladium | C₅₁H₄₂O₃Pd₂ | |
| Solvent | 1,4-Dioxane | C₄H₈O₂ | |
| Product | 2-({5-Chloro-2-[(1,3-dimethyl-1H-pyrazol-4-yl)-amino]-4-pyridinyl}amino)-N-(methyloxy)benzamide | C₁₈H₁₉ClN₆O₂ | 14.3% |
Conditions
- Temperature
- 150 °C
Yield
- 14% of 2-({5-Chloro-2-[(1,3-dimethyl-1H-pyrazol-4-yl)-amino]-4-pyridinyl}amino)-N-(methyloxy)benzamide.
Other recorded runs with the same starting material
No other run in the library makes this product. These runs of the same class start from one of the same reactants, which is the nearest company this record has.
- 6-[(1,3-Dimethylpyrazol-4-yl)amino]-4-[(2-methyl-1-oxo-3,4-dihydroisoquinolin-8-yl)amino]pyridine-3-carbonitrile55%
- 2-({5-Chloro-2-[(1,3-dimethyl-1h-pyrazol-4-yl)amino]-4-pyridinyl}amino)-n-methylbenzamide53%
- 2-[[5-cyano-2-[(1,3-dimethylpyrazol-4-yl)amino]-4-pyridinyl]amino]-N-methylbenzamide50%
- Gsk-225609847%
- 6-[(1,3-Dimethylpyrazol-4-yl)amino]-4-[(2-methyl-1-oxo-3,4-dihydroisoquinolin-8-yl)amino]pyridine-3-carbonitrile44%
- Gsk-225609836%
- Gsk-225609834%
- 2-[[2-[(1,3-dimethylpyrazol-4-yl)amino]-5-(trifluoromethyl)pyridin-4-yl]amino]-N-methylbenzamide34%
- 2-[[2-[(1,3-dimethylpyrazol-4-yl)amino]-5-(trifluoromethyl)-4-pyridyl]amino]-N-methoxy-benzamide11%
- 6-[(1,3-Dimethylpyrazol-4-yl)amino]-4-[(2-methyl-1-oxo-3,4-dihydroisoquinolin-8-yl)amino]pyridine-3-carbonitrile7%
Procedure
Copied from the source record, unedited
2-(2,5-dichloropyridin-4-ylamino)-N-methoxybenzamide (250 mg, 0.80 mmol), 1,3-dimethyl-1H-pyrazol-4-amine (134 mg, 1.20 mmol), Sodium tert-butoxide (115 mg, 1.20 mmol), 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene (55.6 mg, 0.10 mmol) and BIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (58.7 mg, 0.06 mmol) were suspended in dioxane (15 mL) and sealed into a microwave tube. The reaction was heated to 150 °C for 30 minutes in the microwave reactor and cooled to RT. Reaction not complete by LCMS so more 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene (55.6 mg, 0.10 mmol), BIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (58.7 mg, 0.06 mmol) and 1,3-dimethyl-1H-pyrazol-4-amine (134 mg, 1.20 mmol) were added and the reaction heated to 150 ºC for a further 30 minutes in the microwave reactor and cooled to RT.
The source
This record comes from experimental reaction archive (ord-48707410a8f646d7ad65813e3cef2505). Open the source and check it against what is on this page.
experimental reaction archive record ord-48707410a8f646d7ad65813e3cef2505 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.
Where to next
More Buchwald–Hartwig amination records
Other runs of this class, one page per distinct transformation.
Open in the Reaction Lab
The atom map, the bonds that break and form, and records running the same transformation.
Percent yield calculator
Work out a yield from what you isolated against what the equation allows.
Molecules A–Z
Every named molecule, with its identifiers and sources.