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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1988403Generated: October 25, 2026

1,5-Dibromopentane → Ethyl 1-cyanocyclohexane-1-carboxylate

https://huagongshe.com/reaction/1988403

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,5-DibromopentaneHCID 8100—
ReactantEthyl AcetateHCID 8857—
ReactantCesium carbonateHCID 10796—
ReactantCyanoacetateHCID 1551036—
SolventDimethylformamideHCID 6228—
ProductEthyl 1-cyanocyclohexane-1-carboxylateHCID 1099765057%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of cyanoacetate (1 eq) in DMF at 0° C. was slowly added cesium carbonate (2.5 eq), followed by the slow addition of 1,5-dibromopentane. This mixture was allowed to stir for 30 minutes at 0° C. and at room temperature for two hours. The crude reaction mixture was diluted with ethyl acetate and washed three times with water, dried with anhydrous sodium sulfate, filtered, and concentrated. The compound was clean enough to continue without purification. 57% yield. 1H NMR (300 MHz, CDCl3) δ 4.25 (q, 2H), 2.12-1.68 (m, 10H), 1.31 (t, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07553854B2
Source datasetuspto-grants-2009_06
ORD IDord-b8e61372ddba4ebe8cacd34b1d40c29d
Source noteuspto-grants-2009_06