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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 906201Generated: October 29, 2026

Cesium carbonate → HCID 67403211, compound

https://huagongshe.com/reaction/906201

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
Reactant(R)-sec-butylamineHCID 2724537—
ReactantHCID 67404112HCID 67404112—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 67403211HCID 6740321131%

Reaction Conditions

Temperature95 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012956B2
Source datasetuspto-grants-2011_09
ORD IDord-62d0fffb795f426990070957ddbf235c
Source noteuspto-grants-2011_09