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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1284122Generated: November 2, 2026

Chlorotrimethylsilane → 3-(Methylsulphonyl)-2-oxoimidazolidine-1-carbonyl chloride

https://huagongshe.com/reaction/1284122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorotrimethylsilaneHCID 6397—
ReactantTriethylamineHCID 8471—
Reactant1,4-DioxaneHCID 31275—
Reactant1-(Methylsulphonyl)imidazolidin-2-oneHCID 3016296—
Product3-(Methylsulphonyl)-2-oxoimidazolidine-1-carbonyl chlorideHCID 3016299—

Reaction Steps

16.4 parts by weight of 1-methylsulphonyl-imidazolid- 2-one in dioxane were boiled for 3 days with 27 parts by weight of trimethylchlorosilane and 20 parts by weight of triethylamine. The triethylamine hydrochloride which precipitated was filtered off, 11 parts by weight of phosgene were added to the filtrate and the mixture was left to stand overnight at room temperature. It was then evaporated to dryness and the residue recrystallized from boiling acetone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03978056
Source datasetuspto-grants-1976_08
ORD IDord-a280a6d8577b446c9ff8fcf817f768d8
Source noteuspto-grants-1976_08