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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 354974Generated: October 30, 2026

Methyl Isobutyl Ketone → HCID 13105525, compound

https://huagongshe.com/reaction/354974

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl Isobutyl KetoneHCID 7909—
ReactantSodium CarbonateHCID 10340—
ReactantBenzhydrylpiperazineHCID 70048—
Reactant1-(2-Chloroethyl)-1,3-dihydro-2H-benzimidazol-2-oneHCID 3653471—
SolventWaterHCID 962—
ProductHCID 13105525HCID 13105525—

Reaction Steps

A mixture of 4.5 parts of 1-(2-chloroethyl)-2,3-dihydro-1H-benzimidazol-2-one, 5 parts of 1-(diphenylmethyl)piperazine, 6.4 parts of sodium carbonate and 200 parts of 4-methyl-2-pentanone is stirred and refluxed overnight with water-separator. The reaction mixture is cooled and water is added. The precipitated product is filtered off and crystallized from a mixture of N,N-dimethylformamide and water, yielding 1-{2-[4-(diphenylmethyl)-1-piperazinyl]ethyl}-1,3-dihydro-2H-benzimidazol-2-one; mp. 218° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04377578
Source datasetuspto-grants-1983_03
ORD IDord-73963082249748539c2d0c3fef6ef2e7
Source noteuspto-grants-1983_03