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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1059002Generated: October 31, 2026

Ethanol → HCID 18669678, compound

https://huagongshe.com/reaction/1059002

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium CarbonateHCID 10340—
Reactant2-Aminopyrimidine-5-boronic acid, pinacol esterHCID 17750212—
ReactantHCID 23563768HCID 23563768—
CatalystHCID 178418397HCID 178418397—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
ProductHCID 18669678HCID 1866967883.1%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 4-(4-bromophenyl)-4-(3-cyclopentyloxy-4-methoxyphenyl)-2-cylohexen-1-one (1.39 g, 3.17 mmol) in Toluene (50 ml) was added tetrakis(triphenylphosphine)palladium(0) (417 mg, 0.36 mmol), followed by 2-(2-aminopyrimidin-5-yl)-4,4,5,5-tetramethyl-1,3-dioxaborolane (2.02 g, 6.1 mmol, prepared as described in Tatsuo Ishiyama; Miki Murata and Norio Miyaura, J. Org. Chem. 1995, 60, 7508-7510), ethanol (8 ml) and 2M sodium carbonate (8 ml). The reaction mixture was stirred under argon at 80° C. for 18 h. Water was added and the mixture extracted three times with ethyl acetate, the combined organic extract was washed with water then brine, dried (sodium sulfate) and evaporated. Purification by flash chromatography (silica gel, 73% ethyl acetate/27% hexane) provided the title compound as a white solid (1.2 g, 83% crude yield). MS (m/e): 456 [(M+1)+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06518306B1
Source datasetuspto-grants-2003_02
ORD IDord-2a320067821d465b87f6f2598d8099bd
Source noteuspto-grants-2003_02