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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 253041Generated: October 30, 2026

Hydrochloric Acid → HCID 57883105, compound

https://huagongshe.com/reaction/253041

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantButyl vinyl etherHCID 8108—
ReactantTriethylamineHCID 8471—
ReactantHCID 57883111HCID 57883111—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 57883105HCID 578831052.5%

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of 8-bromo-2-(4-pyridinyl)-6-methyl-4H-1-benzopyran-4-one (0.12 g, 0.36 mmol), n-butyl vinyl ether (0.047 ml, 0.36 mmol), triethylamine (0.050 ml, 0.36 mmol) in DMF (5 ml) was purged with N2 and then treated with PdCl2(dppf) (27 mg, 0.036 mmol). The mixture was heated to 90° C. overnight. The mixture was cooled to room temperature and treated with 1N aqueous HCl (30 ml) and stirring was continued overnight. The mixture was then diluted with water (50 ml), and lyophilized to dryness. The residue was eluted through a C8-HPLC column and the product isolated as an off-white solid (2.5 mg). The product was identical to that described above.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07872011B2
Source datasetuspto-grants-2011_01
ORD IDord-25a1af58c1c349f7a2000bfa113b7cf6
Source noteuspto-grants-2011_01