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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1648512Generated: October 25, 2026

Potassium Carbonate → Diethyl 1-hexyl-2,5-dioxo-4-imidazolylphosphonate

https://huagongshe.com/reaction/1648512

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-IodohexaneHCID 12527—
ReactantDiethyl (2,5-dioxo-2,5-dihydro-1H-imidazol-4-yl)phosphonateHCID 53733419—
SolventDiethyl EtherHCID 3283—
SolventDimethylformamideHCID 6228—
ProductDiethyl 1-hexyl-2,5-dioxo-4-imidazolylphosphonateHCID 53646860—

Reaction Steps

To a solution of diethyl 2,5-dioxo-4-imidazolylphosphonate (6.00 g, 0.025 moles) in DMF (15 mL), under N2, is added K2CO3 (17.5g, 0.127 moles) and 1-iodohexane (3.75 mL, 0.025 moles). This mixture is stirred at room temperature for 16 hours. The mixture is diluted with ether (300 mL) and washed with water and brine and then dried over MgSO4. Evaporation of solvents under high vacuum affords the required product as a viscous yellow oil. (Mass spectrometry also revealed a small amount of diethyl 1,3-dihexyl-2,5-dioxo-4-imidazolylphosphonate) MS (EI) 321

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05436260
Source datasetuspto-grants-1995_07
ORD IDord-f154442dadb24ac08901a1f58bdbd0df
Source noteuspto-grants-1995_07