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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 653081Generated: October 26, 2026

Malononitrile → 1,1-Dicyanocyclopentane

https://huagongshe.com/reaction/653081

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalononitrileHCID 8010—
Reactant1,4-DibromobutaneHCID 8056—
ReactantPotassium CarbonateHCID 11430—
SolventAcetonitrileHCID 6342—
Product1,1-DicyanocyclopentaneHCID 1517203553.3%

Reaction Steps

A mixture of 43.19 g of 1,4-dibromobutane, 13.2 g of malononitrile, 55.3 g of potassium carbonate and 1 liter of acetonitrile was refluxed for 42 hours, filtered while hot and evaporated to dryness giving a dark oil. This oil was vacuum distilled, giving 12.8 g 1,1-cyclopentanedicarbonitrile.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04675336
Source datasetuspto-grants-1987_06
ORD IDord-541c58403ec745568671923c46d34e6e
Source noteuspto-grants-1987_06