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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2198756Generated: October 30, 2026

Dimethylformamide → N-[3-(4-oxo-piperidino)-propyl]-benzimidazolone

https://huagongshe.com/reaction/2198756

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantTetrahydrofuranHCID 8028—
ReactantSodium BicarbonateHCID 516892—
Reactant1-(3-chloropropyl)-1,3-dihydro-2H-benzimidazol-2-oneHCID 1810419—
ProductN-[3-(4-oxo-piperidino)-propyl]-benzimidazoloneHCID 1305604339%

Reaction Steps

A mixture of 6.3 gm of N-(3-chloropropyl)-benzimidazolone, 4.6 gm of 4-piperidine hydrochloride monohydrate, 5.0 gm of sodium bicarbonate, 50 ml of tetrahydrofuran, and 50 ml of dimethylformamide, was heated to reflux, for 36 hours. The product was worked up as usual, yielding 3.2 gm (39% of theory) of N-[3-(4-oxo-piperidino)-propyl]-benzimidazolone, m.p. 134°-136° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04359468
Source datasetuspto-grants-1982_11
ORD IDord-c7cda93a885741f5b525aa2c0befd1ea
Source noteuspto-grants-1982_11