Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1783697Generated: October 29, 2026

Ethylene Glycol → HCID 21106520, compound

https://huagongshe.com/reaction/1783697

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylene GlycolHCID 174—
ReactantWaterHCID 962—
ReactantThiophenolHCID 7969—
ReactantHCID 178515031HCID 178515031—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 21106520HCID 21106520—

Reaction Conditions

Temperature90 °C

Reaction Steps

4-Hydroxy-2-(4-iodo-phenyl)-2H-phthalazin-1-one (see Method Q) (0.20 g, 0.55 mmol), thiophenol (0.061 g, 0.55 mmol), CuI (0.006 g, 0.03 mmol) and ethylene glycol (0.070 g, 1.1 mmol) were dissolved in N-methyl-pyrrolidinone (NMP) (1 ml) under argon and heated to 90° C. Stirring at this temperature was continued for 26 h before the mixture was allowed to warm to RT. H2O (50 ml) was added and the resulting solution was extracted with DCM. The title compound was obtained after purification of the raw product by chromatography over silica gel with DCM (0.10 g, 54%). 1H-NMR: (400 MHz, D6-DMSO) 11.91 (1H, s), 8.30 (1H, s), 7.91-8.06 (3H, m), 7.69 (2H, d), 7.34-7.45 (7H, m); MS (ESI+)=347.26 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07501410B2
Source datasetuspto-grants-2009_03
ORD IDord-fd6aee5fbb5e4233b94f6c26b29e4c9b
Source noteuspto-grants-2009_03