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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 126852Generated: October 25, 2026

Methyl vinyl ketone → HCID 20288038, compound

https://huagongshe.com/reaction/126852

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl vinyl ketoneHCID 6570—
ReactantTriethylamineHCID 8471—
Reactant1,3-Dihydro-1-(1-methylvinyl)-2H-benzimidazol-2-oneHCID 100278—
SolventTetrahydrofuranHCID 8028—
ProductHCID 20288038HCID 20288038100%

Reaction Steps

A mixture of 34.8 parts of 1,3-dihydro-1-(1-methylethenyl)-2H-benzimidazol-2-one, 28 parts of 3-buten-2-one, 20.2 parts of N,N-diethylethanamine and 270 parts of tetrahydrofuran is stirred and refluxed over week-end. The reaction mixture is evaporated, yielding 48.8 parts (100%) of 1,3-dihydro-1-(1-methylethenyl)-3-(3-oxobutyl)-2H-benzimidazol-2-one as a residue.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04254127
Source datasetuspto-grants-1981_03
ORD IDord-af30ed2215294677b18d950d339253da
Source noteuspto-grants-1981_03