HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 515Generated: October 23, 2026
tert-Butyl carbamate → tert-butyl N-(3-fluoro-5-methyl-2-pyridinyl)carbamate
https://huagongshe.com/en/reaction/515
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | tert-Butyl carbamate | HCID 77922 | — |
| Reactant | 2-Chloro-3-fluoro-5-methylpyridine | HCID 13541365 | — |
| Reagent | Cesium carbonate | HCID 10796 | — |
| Catalyst | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | HCID 636044 | — |
| Catalyst | Palladium (II) acetate | HCID 4144353 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | tert-butyl N-(3-fluoro-5-methyl-2-pyridinyl)carbamate | HCID 90064798 | 25.74% |
Reaction Steps
diacetoxypalladium (15.42 mg, 0.07 mmol) and(9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) (39.8 mg, 0.07 mmol) were added to a degassed mixture of 2-chloro-3-fluoro-5-methylpyridine (100 mg, 0.69 mmol), tert-butyl carbamate (121 mg, 1.03 mmol) and cesium carbonate (336 mg, 1.03 mmol) in dioxane (10 mL) at 21°C. The resulting mixture was stirred at 100 °C for 16 hours.Filtered through celite and adsorbed onto silica. The crude product was purified by flash silica chromatography, elution gradient 0 to 50% DCM in heptane. Pure fractions were evaporated to dryness to afford sm by HNMR Abandoned. ..
Provenance & Evidence
| Source dataset | 750 AstraZeneca ELN dataset |
|---|
| ORD ID | ord-e2551fd8964c4f0a80ff232c25d61d8a |
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| Source note | 750 AstraZeneca ELN dataset |
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