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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1995661Generated: October 26, 2026

1,3-dihydro-4-methyl-2H-imidazol-2-one → 4-(3,4-Dimethoxybenzoyl)-1,3-dihydro-2H-imidazol-2-one

https://huagongshe.com/reaction/1995661

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-dihydro-4-methyl-2H-imidazol-2-oneHCID 70935—
ReactantVeratroyl chlorideHCID 77070—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventNitrobenzeneHCID 7416—
Product4-(3,4-Dimethoxybenzoyl)-1,3-dihydro-2H-imidazol-2-oneHCID 20487561—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 6.5 g of 1,3-dihydro-4-methyl-2H-imidazol-2-one and 14.6 g of aluminum chloride in 65 ml of nitrobenzene is added 17.6 g of 3,4-dimethoxybenzoyl chloride in portions. The mixture is stirred for 3 hours at 60° C., cooled and poured over ice water. The gummy solids are filtered and recrystallized twice from ethyl alcohol-water to afford the title compound. M.P. 257°-259° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04405635
Source datasetuspto-grants-1983_09
ORD IDord-6720dc5fc3df433ea6385c169bd2b31d
Source noteuspto-grants-1983_09