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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1837108Generated: November 4, 2026

1,3-Cyclopentanedione → HCID 10271045, compound

https://huagongshe.com/reaction/1837108

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-CyclopentanedioneHCID 77466—
Reactant3-Bromo-4-fluorobenzaldehydeHCID 173604—
Reactant3-Amino-2-methyl-2,5-dihydro-1,2-oxazol-5-oneHCID 23497498—
SolventEthanolHCID 702—
ProductHCID 10271045HCID 1027104518.5%

Reaction Steps

The product from Example 45A (0.11 g, 1 mmol), 3-bromo-4-fluorobenzaldehyde (0.2 g, 1 mmol), and 1,3-cyclopentanedione (0.1 g, 1 mmol) in ethyl alcohol (2 mL) were heated at 80° C. for 2 days in a sealed tube. The reaction mixture was allowed to cool to ambient temperature and was evaporated under reduced pressure. The residue was chromatographed eluting with 19:0.5:0.5 ethylacetate:formic acid:water to provide the title compound (0.07 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06780872B2
Source datasetuspto-grants-2004_08
ORD IDord-1b8e0b63ac5b436bb890145c3c64b90e
Source noteuspto-grants-2004_08