HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 906201Generated: October 29, 2026
Cesium carbonate → HCID 67403211, compound
https://huagongshe.com/reaction/906201
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | HCID 636044 | — |
| Reactant | (R)-sec-butylamine | HCID 2724537 | — |
| Reactant | HCID 67404112 | HCID 67404112 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 67403211 | HCID 67403211 | 31% |
Reaction Steps
Methyl 4-cyano-5-iodo-2-(trifluoromethyl)benzoate (174 mg, 0.49 mmol) was dissolved in dioxane (2 mL) and was sparged with nitrogen for 15 minutes. XANTPHOS (57 mg, 0.098 mmol), cesium carbonate (350 mg, 1.07 mmol), (R)-sec-butylamine (0.1 mL, 0.986 mmol), and tris(dibenzylideneacetone)dipalladium (45 mg, 0.049 mmol) were added, and the mixture was stirred in a sealed tube at 95° C. for 20 h. The reaction mixture was cooled to ambient temperature and was filtered through celite. The filter cake was washed with ethyl acetate and the filtrate was concentrated to afford an orange oil which was purified by column chromatography (silica gel, 5-15% ethyl acetate in hexanes) to afford (R)-methyl 5-(sec-butylamino)-4-cyano-2-(trifluoromethyl)benzoate (45 mg, 0.150 mmol, 31% yield) as a yellow oil. GCMS for C14H15F3N2O2: 300 (M+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08012956B2 |
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| Source dataset | uspto-grants-2011_09 |
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| ORD ID | ord-62d0fffb795f426990070957ddbf235c |
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| Source note | uspto-grants-2011_09 |
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